Volumul 21

21-111 INFLUENCE OF GRAİN SİZE ON MECHANICAL PROPERTIES OF Al2O3 – SiC COMPOSİTES

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ali Osman KURT George ARGHIR Hilalnur ŞEKER Liviu BRÂNDUŞAN la de

INFLUENCE OF GRAIN SIZE ON MECHANICAL
PROPERTIES OF Al2O3 – SiC COMPOSITES
Composite material of Al2O3/SiC was prepared by pressing Al2O3 and
SiC powders. The mechanical properties, including flexural strength,
compression strength, hardness, and resilience were studied. The amount of
SiC was 20, 30, and 40 vol. %. Sintering was done at 1650 oC for 1 h soaking
time in air. Porosity decreases as grain size of SiC is increasing. As increasing
the particle size the resistance of flexion decreases, the resistance of
compression is decreasing, HRA is highest for 20 % vol. SiC, and resilience is
highest for 40 vol.% SiC.
Keywords: Al2O3/SiC composites, flexural strength
Cuvinte cheie: compozite Al2O3/SiC, rezistenţă la încovoiere

111 INFLUENCE OF GRAİN SİZE ON MECHANICAL

21-110 ASUPRA UNOR PARTICULARITĂŢI ALE OBOSELII DE FRETTING (II)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Tiberiu MĂNESCU jr. la de

ON SOME PARTICULARITIES OF FRETTING FATIGUE (II)
Fretting is a process which invariably occurs on contracting surfaces of
tightly metal joints subjected to vibration loading. The superficial damage caused
by the rubbing of the contacting surfaces together with the severe stress gradient
under the contact region accelerate the nucleation and early growth of cracks
witch can lead to catastrophic failure of there is a least one of the components of
the fitting subjected to a remote fatigue load. This is the so called fretting fatigue
phenomenal. The aircraft industry is per hops one of the most affected by the
fretting fatigue problem.
Cuvinte cheie: oboseală de fretting
Keywords: fretting fatigue

110 ASUPRA UNOR PARTICULARITĂŢI ALE

21-109 ASUPRA UNOR PARTICULARITĂŢI ALE OBOSELII DE FRETTING (I)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Tiberiu MĂNESCU jr. la de

ON SOME PARTICULARITIES OF FRETTING FATIGUE (I)
Fretting is a process which invariably occurs on contracting surfaces
of tightly metal joints subjected to vibrational loading. The superficial damage
caused by the rubbing of the contacting surfaces together with the severe
stress gradient under the contact region accelerate the nucleation and early
growth of cracks witch can lead to catastrophic failure of there is a least one of
the components of the fitting subjected to a remote fatigue load. This is the so
called fretting fatigue phenomena. The aircraft industry is perhaps one of the
most affected by the fretting fatigue problem.
Cuvinte cheie: oboseală de fretting
Keywords: fretting fatigue

109 ASUPRA UNOR PARTICULARITĂŢI ALE

21-108 STUDIUL VITEZEI DE CREŞTERE A FISURII ÎN RAPORT CU MODELUL MATEMATIC PROPUS

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Daniel Ionuț GEONEA Vâlcu ROŞCA la de

STUDY OF SPEED INCREASE OF THE CRACK
IN RELATION TO MATHEMATICAL MODEL PROPOSED
It has been carried out a study of the crack propagation rate in testpieces
with flat model CT, with side notch, from a 10TiNiCr175 mark stainless,
by three known variants: polynomial method according to ASTM 647-95, Paris
method and Forman method. It was examined the influence of temperature
variation to low values, for an axial cyclic eccentric strain. Asymmetry coefficient
by working was R = 0,3, and the temperatures T = 293 K, T = 253 K,
respectively T = 213 K.
Cuvinte cheie: solicitare ciclică, coeficient de asimetrie, fisură, viteză
de fisurare, factor de intensitate a tensiunii
Keywords: application cyclical asymmetry coefficient, crack, crack
speed, voltage intensity factor

108 STUDIUL VITEZEI DE CREŞTERE A FISURII ÎN

21-107 METODE DE DETERMINARE A REZISTENȚEI LA OBOSEALĂ partea a Il-a

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Daniel Gheorghe LAKATOS Mircea BEJAN la de

METODHS FOR DETERMINING THE RESISTANCE
TO FATIGUE – II
Although the total number of parts that break during service is not
great, however over 50 % of the breaks are caused by fatigue cracking or
corrosion fatigue, and so is of a great importance the knowledge and mastery
of this phenomenon.
The present work contains both a summary of methods for
determining the resistance to fatigue and also the procedures for determining
the coefficient of safety in different situations.
Cuvinte cheie: durabilitate, rezistență, oboseală, diagramă
Keywords: durability, resistance, fatigue, diagram

107 METODE DE DETERMINARE A REZISTENȚEI LA

21-106 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII FENOMENULUI DE OBOSEALĂ LA MAI MULTE SCĂRI. OBOSEALA MESOSCOPICĂ (III)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ion DUMITRU Lorand KUN Pavel TRIPA la de

CONSIDERATIONS REGARDING THE NECESSITY OF
FATIGUE APPROACH ON DIFFERENT SCALES.
FATIGUE MESOSCOPIC (III)
An extensive literature review is presented in this paper, composed of
several parts, regarding the present-day topic of mesoscopic fatigue of
materials. This subject is scarcely represented in the literature from our country.
The authors present a short and accessible approach in order to
familiarize research and production engineers with the new aspects of fatigue
calculation based on the transition from macro to meso scale. Mesoscopic
fatigue takes into account the material’s behavior at the level of crystal grains.
Cuvinte cheie: oboseală, număr cicluri, macroscopic, mesoscopic
Keywords: fatigue, number of cycles, macroscopic, mesoscopic

106 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII

21-105 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII FENOMENULUI DE OBOSEALĂ LA MAI MULTE SCĂRI. OBOSEALA MESOSCOPICĂ (II)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ion DUMITRU Lorand KUN Pavel TRIPA la de

CONSIDERATIONS REGARDING THE NECESSITY OF
FATIGUE APPROACH ON DIFFERENT SCALES.
FATIGUE MESOSCOPIC (II)
An extensive literature review is presented in this paper, composed of
several parts, regarding the present-day topic of mesoscopic fatigue of
materials. This subject is scarcely represented in the literature from our country.
The authors present a short and accessible approach in order to
familiarize research and production engineers with the new aspects of fatigue
calculation based on the transition from macro to meso scale. Mesoscopic
fatigue takes into account the material’s behavior at the level of crystal grains.
Cuvinte cheie: oboseală, număr cicluri, macroscopic, mesoscopic
Keywords: fatigue, number of cycles, macroscopic, mesoscopic

105 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII

21-104 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII FENOMENULUI DE OBOSEALĂ LA MAI MULTE SCĂRI. OBOSEALA MESOSCOPICĂ (I)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ion DUMITRU Lorand KUN Pavel TRIPA la de

CONSIDERATIONS REGARDING THE NECESSITY OF
FATIGUE APPROACH ON DIFFERENT SCALES. FATIGUE
MESOSCOPIC (I)
An extensive literature review is presented in this paper, composed of
several parts, regarding the present-day topic of mesoscopic fatigue of
materials. This subject is scarcely represented in the literature from our country.
The authors present a short and accessible approach in order to
familiarize research and production engineers with the new aspects of fatigue
calculation based on the transition from macro to meso scale. Mesoscopic
fatigue takes into account the material’s behavior at the level of crystal grains.
Cuvinte cheie: oboseală, număr cicluri, macroscopic, mesoscopic
Keywords: fatigue, number of cycles, macroscopic, mesoscopic

104 CONSIDERAŢII PRIVIND NECESITATEA ABORDĂRII

21-103 UN ASPECT AL ESTIMĂRII TENACITĂŢII LA RUPERE, δc

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ion DUMITRU Pavel TRIPA la de

AN ASPECT OF ESTIMATING OF THE FRACTURE
TOUGHNESS δc
Between main characteristics, praising the fracture toughness of
materials, there are different relations. The present paper is praising some
difficulties which concerning the fracture toughness, on the basis of a method
which allow to estimate another characteristic, much easy to determine.
Cuvinte cheie: tenacitate la rupere, caracteristici mecanice,
temperatură
Keywords: fracture toughness, mechanical properties, temperature

103 UN ASPECT AL ESTIMĂRII TENACITĂŢII

21-102 RECONSTITUIREA GEOMETRIEI UNUI IMPLANT DE GENUNCHI

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Dorian NEDELCU Vasile COJOCARU la de

REVERSE ENGINEERING OF A KNEE IMPLANT
The objective of the application is to describe the reverse engineering
stages to transform a real knee implant into a virtual geometry, using the
Noomeo Optinum 3D scanner, Numisoft and Rapidform XOR3 software.
Cuvinte cheie: inginerie inversă, scanner 3D, implant
Keywords: Reverse Engineering, 3D scanner, implant

102 RECONSTITUIREA GEOMETRIEI UNUI

21-101 DETERMINAREA SENSIBILITATII UNUI NOU SENZOR MINIATURAL DE PRESIUNE CU FIBRA OPTICĂ, PENTRU APLICAȚII MEDICALE, O OPORTUNITATE PENTRU TERAPIA ÎMPOTRIVA PULSAȚIILOR INTRAAORTICE (IABP = INTRA-AORTIC BALLOON POMPE)

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Iuliu ARON la de

DETERMINATION OF SENSITIVITY OF A NEW MINIATURE
FIBER OPTIC PRESSURE SENSOR FOR MEDICAL
APPLICATIONS, AN OPPORTUNITY FOR THERAPY AGAINST
INTRA-AORTIC PULSATION
The paper presents a miniature fiber optic pressure sensor for medical
applications, based on Fabry-Perrault White Light Interferometry and a method
for determining the sensitivity of a new sensor.
Cuvinte cheie: sensor, sensibilitate, fibră optică
Keywords: sensor, sensitivity, fiber optics

101 DETERMINAREA SENSIBILITATII UNUI NOU SENZOR

21-100 TENSIUNI ŞI DEFORMAŢII PROVOCATE DE GREUTATEA ZĂPEZII LA CĂPRIORUL UNEI ŞARPANTE DIN LEMN

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Marcu FRĂŢILĂ la de

STRESSES AND DEFORMATIONS IN FARMING
OF WOOD RAFTER CAUSED BY SNOW WEIGHT
This paper analyses the stresses and deformations in farming of wood
rafter caused by snow weight. The finite element method was used to
determine stresses and deformations. Were analyzed several variants of
dimensional framing.
Cuvinte cheie: şarpantă, căpriori, tensiuni, deformaţii
Keywords: sloping, roof, stress, strain

100 TENSIUNI ŞI DEFORMAŢII PROVOCATE DE

21-99 PROIECTAREA ŞI VERIFICAREA STRUCTURII DE REZISTENŢĂ A UNUI AUTOTURISM DE TEREN TIP “BUGGY”

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Gheorghe Aurel GHERMAN la de

STRUCTURAL STRENGTH DESIGN AND VERIFICATION OF
AN OFF-ROAD, “BUGGY” TYPE AUTOMOBILE
Within the current paper the author presents the results of the
structural strength analysis, made for the design and verification process of an
off-road, “buggy” type automobile.
The main technical characteristics for the new lightweight automobile,
that was designed, were set by the comparative analysis of different
constructive variants of this type of automobiles that have already been made.
The structural strength of the „buggy” was verified by a calculation
using the finite element method. The paper presents the values of the strains
and displacements obtained by running the program for the loading cases that
have been considered.
Cuvinte cheie : autoturism tip Buggy, structura de rezistenţa, metoda
elementelor finite
Keywords: Buggy car type, structure, strength, finite element

99 PROIECTAREA ŞI VERIFICAREA

21-98 SIGURANŢA STRUCTURILOR METALICE ÎN EXPLOATARE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Francisc WEBER Gelu OPRIŞA la de

THE SAFETY IN EXPLOITING METALLIC
CONSTRUCTIONS
The paper analyses the safety in exploiting metallic constructions. In
order to verify the limit conditions, corrections were introduce by using some
dimensionless numerical coefficients, determined for each analyzed limit
condition, which will cover unfavorable influences of different factors.
Cuvinte cheie: siguranţă, stare limită, coeficienţi, îmbinare
Keywords: safety, level measurement, ratios, jointing

98 SIGURANŢA STRUCTURILOR METALICE

21-97 INSTALAŢIE EXPERIMENTALĂ PENTRU EFECTUAREA ÎNCERCĂRILOR LA FLUAJ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Alexandru JELER Francisc WEBER la de

EXPERIMENTAL DEVICE FOR PERFORMING
TRIALS RELATED TO CREEP
This paper aims at presenting an experimental device, used for
performing trials related to creep. The device belongs to the Strength of
Materials Laboratory within the Faculty of Engineering Hunedoara.
Cuvinte cheie: fluaj, încercare mecanică, temperatură
Keywords: creep, mechanical testing, temperature

97 INSTALAŢIE EXPERIMENTALĂ PENTRU

21-96 EVOLUȚIA TENSIUNILOR REMANENTE Partea a II-a

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ioan Aurel CHERECHEŞ Mircea BEJAN la de

EVOLUTION OF RESIDUAL STRESSES – PART II
Abstract: In this paper, the authors study the residual stresses that
arise in a stress lattice during casting. The residual stresses are firstly
determined experimentally and secondly simulated using a numerical method
(control volume) for method validation.
Cuvinte cheie: tensiuni remanente, proba rețea de contracție, turnare,
simulare numerică
Keywords: residual stresses, stress lattice, casting, numerical
simulation

96 EVOLUȚIA TENSIUNILOR REMANENTE

21-95 EVOLUȚIA TENSIUNILOR REMANENTE Partea I

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ilarie IVAN Ioan Aurel CHERECHEŞ Mircea BEJAN la de

EVOLUTION OF RESIDUAL STRESSES
Part I
In this paper, the authors study the residual stresses that arise in a
stress lattice during casting. The residual stresses are firstly determined
experimentally and secondly simulated using a numerical method (control
volume) for method validation.
Cuvinte cheie: tensiuni remanente, proba rețea de contracție, turnare,
simulare numerică
Keywords: residual stresses, stress lattice, casting, numerical
simulation

95 EVOLUȚIA TENSIUNILOR REMANENTE

21-94 TIPURI CONSTRUCTIVE ŞI CARACTERISTICI TEHNICE ALE VAGOANELOR DE MARFĂ FOLOSITE LA CALEA FERATĂ UZINALĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Cornel IACOB-MARE la de

TYPES ON CONSTRUCTION AND TECHNICAL
CHARACTERISTICS OF WAGONS USED
TO INDUSTRIAL RAILWAY
This paper aims to study of the constructive and technical
characteristics, the mostrepresentative freidht cars used in rail wagons found
this plant on 2 and 4 axles.
Cuvinte cheie: vagoane de marfă descoperite, cale ferată uzinală,
sarcini, tensiuni, deformaţii
Keywords: freight wagons discovered, railway plant, loads, stresses,
deformations

94 TIPURI CONSTRUCTIVE ŞI CARACTERISTICI TEHNICE

21-93 METODE DE PROIECTARE ŞI VERIFICARE A STRUCTURILOR DE REZISTENŢĂ LA VEHICULELE FEROVIARE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Cornel IACOB-MARE Ion CIORBĂ Tiberiu Ștefan MĂNESCU la de

METHODS FOR DESIGN AND VERIFICATION OF
STRUCTURES OF RESISTANCE FROM RAILWAY VEHICLES
The girl is to analyse the methods of design and verification of
structures of resistance from railway vehicles used over time in railway
transport.
Cuvinte cheie: metoda elemntelor finite, material rulant, tensiuni,
deformaţii.
Keywords: method elemntelor finished, rolling, tension, strain

93 METODE DE PROIECTARE ŞI VERIFICARE

21-92 ÎNCERCĂRILE TENSOMETRICE – CERINŢĂ OBLIGATORIE PENTRU OMOLOGAREA FINALĂ A VAGOANELOR DE MARFĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Mircea Cristian ARNĂUTU Nicuşor Laurenţiu ZAHARIA la de

EXPERIMENTAL STRESS ANALYSIS WITH STRAIN
GAGES – MANDATORY REQUIREMENT FOR THE FINAL
HOMOLOGATION OF THE WAGONS
Experimental stress analysis with strain gages is used all over the world
from many years. In Romania we use as testing method from the steam
locomotive age. During the time, the standards were changed and the
measuring devices are more accurate. It is interested to understand why tests
are still necessary during homologation (certification) process.
Cuvinte cheie: tensometrie, încercări, statice, dinamice, vehicule
feroviare
Keywords: tensometers, testing, static and dynamic rail vehicles

92 ÎNCERCĂRILE TENSOMETRICE – CERINŢĂ

21-91 TRENURILE CU ECARTAMENT VARIABIL O SOLUŢIE DE INTEROPERABILITATE VIABILĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ioan SEBEŞAN Nicuşor Laurenţiu ZAHARIA la de

VARIABLE GAUGE TRAINS A VIABLE
INTEROPERABILITY SOLUTION
In the last 20 years the Commission has been very active in
restructuring the European rail transport market and strengthening the position
of railways vis-à-vis other transport modes. Commission efforts have
concentrated on three major areas which are all crucial for developing a strong
and competitive rail transport industry: (1) opening of the rail transport market
to competition, (2) improving the interoperability and safety of national networks
and (3) developing rail transport infrastructure 0.
Cuvinte cheie: tren, ecartament, interoperabilitate, schimbător, Talgo
Keywords: train, track, interoperability, changing, Talgo

91 TRENURILE CU ECARTAMENT VARIABIL O SOLUŢIE

21-90 CREŞTEREA SARCINII UTILE A UNUI VAGON CISTERNĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Nicuşor Laurenţiu ZAHARIA la de

TANK WAGON’S LOAD INCREASING
The axle load for railway vehicle in Romania is 20 tones. The trend is to
increase the axle load from 20 to 22.5 tones. Because Romania is one of
European Union’s countries for Romanian’s railway vehicle owners it is
important to have modern vehicle able to run all over the Europe. The are many
countries in Europe where axle load is 22.5 tones (Austria, Germany, France
etc.).
Cuvinte cheie: cisternă, sarcină, modernizare, metoda elementelor
finite
Keywords: tank, load, modernization, finite element

90 CREŞTEREA SARCINII UTILE A UNUI VAGON

21-89 RELEVANŢA PROCESULUI DE ECRUISARE APLICAT ARCURILOR ELICOIDALE CILINDRICE ALE VEHICULELOR FEROVIARE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Maria LĂUTARU Tiberiu Dimitrie BABEU la de

RELEVANT PROCESS APPLIED HARDENING COIL
SPRINGS CYLINDRICAL RAILWAY VEHICLES
In the performance of helical springs, the surface residual stresses are
introduced: the outside bar tensile stress and compressive stress inside the
bar. They associated with a possible primer for cracks can lead to premature
rupture of the spring in use. To eliminate this drawback springs are subjected to
hardening treatment which is performed, usually with steel shot.
This paper aims highlighting the importance of the hardening process
applied coil springs to increase resistance to fatigue and lifetime.
Cuvinte cheie : ecruisare, arcuri, epruveta ALMEN, bile de otel (alice)
Keywords: hardening, springs, Almen specimen, steel balls (shot)

89 RELEVANŢA PROCESULUI DE ECRUISARE APLICAT

21-88 CONSIDERAȚII ASUPRA VIBRAȚIILOR SUSPENSIILOR VEHICULELOR DE CALE FERATĂ Partea a II-a

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ioan VIDICAN Mircea BEJAN la de

REFLECTIONS ON RAILWAY
VIBRATION VEHICLE SUSPENSIONS – II
Making a simple mechanical model railway vehicle must contain
masses suspended bogie and vehicle weight box connected by elastic and
dynamic elements. Thus, the suspension of railway vehicles consists of elastic
elements, connecting elements, and shock. Vibration measurements of elastic
element (or set of elastic elements) of a railway vehicle suspension requires a
stand to simulate operating conditions. This paper presents such a stand which
operates as a vibrator.
Cuvinte cheie: model mecanic, vibrații, suspensiile vehiculelor
feroviare, stand de simulare și măsurare, vibrator
Keywords: mechanical design, vibrations, suspension rail vehicle
simulation and measurement stand, vibrating

88 CONSIDERAȚII ASUPRA VIBRAȚIILOR

21-87 CONSIDERAȚII ASUPRA VIBRAȚIILOR SUSPENSIILOR VEHICULELOR DE CALE FERATĂ Partea I

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ioan VIDICAN Mircea BEJAN la de

REFLECTIONS ON RAILWAY
VIBRATION VEHICLE SUSPENSIONS – I
Making a simple mechanical model railway vehicle must contain
masses suspended bogie and vehicle weight box connected by elastic and
dynamic elements. Thus, the suspension of railway vehicles consists of elastic
elements, connecting elements, and shock. Vibration measurements of elastic
element (or set of elastic elements) of a railway vehicle suspension requires a
stand to simulate operating conditions. This paper presents such a stand which
operates as a vibrator.
Cuvinte cheie: model mecanic, vibrații, suspensiile vehiculelor
feroviare, stand de simulare și măsurare, vibrator
Keywords: mechanical design, vibrations, suspension rail vehicle
simulation and measurement stand, vibrating

87 CONSIDERAȚII ASUPRA VIBRAȚIILOR

21-86 UTILIZAREA PROGRAMULUI ALGOR ÎN CALCULUL SOLICITĂRILOR LA ÎNCOVOIERE A BOLŢULUI UNUI MOTOR DIESEL

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ana JOSAN Sorin RAŢIU Vasile ALEXA Vasile PUŢAN la de

USING THE ALGOR SOFTWARE FOR DETERMINING THE
WRIST PIN BENDING FOR A DIESEL ENGINE
The paper introduces the steps of determining the wrist pin bending
for a diesel engine, based on the finite element analysis method, using Algor
software.
Cuvinte cheie: bolţ, elemente finite, încovoiere, motor diesel
Keywords: bolt, finite element, bending, Diesel

86 UTILIZAREA PROGRAMULUI ALGOR ÎN CALCULUL

21-85 UTILIZAREA FOTOELASTICIMETRIEI ÎN ANALIZA STĂRII DE TENSIUNI PENTRU O STRUCTURĂ DE ROBOT INDUSTRIAL. CONSIDERAŢII GENERALE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Adrian-Ioan BOTEAN Mihaela SIMION Mircea BEJAN la de

THE USE OF PHOTOELASTICITY IN ANALYZING THE STATE
OF STRESSES FOR THE STRUCTURE OF AN INDUSTRIAL
ROBOT. GENERAL CONSIDERATIONS
In this paper it’s presented, in general, the experimental study of the
structure of an industrial robot with five degrees of freedom. Using the
experimental method of photoelasticity, are determined the principal stress
difference and the distribution of stresses on the surface of entire structure of
the studied industrial robot.
Cuvinte cheie: experimental, fotoelasticimetrie, tensiuni, deformaţii,
robot, serial
Keywords: experimental, method of photoelasticity, stress, strain,
industrial robot, show

85 UTILIZAREA FOTOELASTICIMETRIEI ÎN ANALIZA

21-84 EFECTUL DEFECTULUI ASUPRA COMPORTĂRII DINAMICE A GRINZILOR

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Carla PROTOCSIL Gilbert Rainer GILLICH la de

THE DAMAGE EFFECT ON DYNAMIC BEHAVIOUR OF
BEAMS
Structural Health Monitoring (SHM) for civil engineering applications
involves the use of sensing networks in order to diagnose damage in large
scale civil structures such as buildings, bridges, aircraft. SHM will result in large
savings in maintenance costs as well as improving life safety by providing a
real-time updating of a structure’s integrity.
Cuvinte cheie: defect, vibraţii, senzori, bară încastrată
Keywords: failure, vibration sensors, embedded bar

84 EFECTUL DEFECTULUI ASUPRA COMPORTĂRII DINAMICE A GRINZILOR

21-83 ÎNCERCĂRI SPECIFICE DE REZISTENŢĂ LA AMORTIZOARE DE ŞOC DIN POLIETILENĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Nicuşor Laurenţiu ZAHARIA Tiberiu MĂNESCU jr. Tiberiu Ștefan MĂNESCU la de

POLYETHYLENE SHOCK ABSORBER STRENGTH
SPECIFIC TESTS
Working on high structures is one of the jobs in the cities vertically
developed. The abilities of climb workers are used in purpose to mount publicity
banners, to clean building face, to mount objects on buildings etc.
The use of fall arrester equipment is made under strictly surveillance
and schooling of the workers because of imminence of the accidents. Before
sailing, the fall arrester equipment are tested and certificated.
Cuvinte cheie: încercări, polietilenă, MGC, tensometrie
Keywords: testing, polyethylene, GMC, tensometers

83 ÎNCERCĂRI SPECIFICE DE REZISTENŢĂ LA

21-82 UTILIZAREA METODEI MEDIILOR ARITMETICE LA PRELUCRAREA DATELOR EXPERIMENTALE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Nicoleta GILLICH la de

THE USE OF ARITHMETIC MEAN METHOD FOR
EXPERIMENTAL DATA PROCESSING
The paper presents an application of the arithmetic mean method
applied to experimental data processing gained from vibration measurement on
a SN400x1500 lathe in four manufacturing cycles and using four cutting
regimes for each cycle.
Cuvinte cheie: metodă, medii aritmetice, date experimentale, serii
bidimensionale
Keywords: method, arithmetic average, experimental data, twodimensional
series

82 UTILIZAREA METODEI MEDIILOR ARITMETICE LA

21-81 DIFERENŢE MAJORE LA UTILIZAREA DEŞEURILOR ÎN MATERIALE DE CONSTRUCŢII

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ana ROŞCA Cornel GABRIAN Dan ROŞCA Lidia GROZAV Silvia FARCAŞ Simona Sorina GABRIAN Sorin GROZAV la de

MAJOR DIFFERENCES TO USE WASTE
IN BUILDING MATERIALS
Using waste properly and are very important mixing conditions the
vent so the strict observance of working conditions. In previous experiments
cork waste does not undergo thermal or physical and chemical transformations,
only a simple shredding process. Thus, the shredded cork is inserted in the
concrete mixture, partly replacing the aggregate. By means of this recycling
process, a major objective for sustainable development is confirmed –
improving environmental quality.
Cuvinte cheie: deşeuri, plută, beton, agregate, mărunţire, mediu,
rezistenţa de compresiune
Keywords: waste, cork, concrete, aggregate, grinding, medium
compressive strength

81 DIFERENŢE MAJORE LA UTILIZAREA DEŞEURILOR

21-80 UTILIZAREA DEŞEURILOR ÎN MATERIALE DE CONSTRUCŢII

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ana ROŞCA Cornel GABRIAN Dan ROŞCA Lidia GROZAV Silvia FARCAŞ Simona Sorina GABRIAN Sorin GROZAV la de

USING WASTES IN BUILDING MATERIALS
Using waste (especially those of organic nature) are a success for
both construction and environment. In previous experiments cork waste does
not undergo thermal or physical and chemical transformations, only a simple
shredding process. Thus, the shredded cork is inserted in the concrete mixture,
partly replacing the aggregate. By means of this recycling process, a major
objective for sustainable development is confirmed – improving environmental
quality.
Cuvinte cheie: deşeuri, plută, beton, agregate, mărunţire, mediu,
rezistenţa de compresiune.
Keywords: waste, cork, concrete, aggregate, grinding, medium
compressive strength

80 UTILIZAREA DEŞEURILOR ÎN MATERIALE

21-79 MICȘORAREA TIMPULUI DE INTERVENȚIE ÎN SISTEMELE ANTIGRINDINĂ PRIN SISTEME DE SUPORT DECIZIONAL

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Constantin ŞULEA Gheorghe MANOLEA la de

DECREASING THE INTERVENTION TIME IN THE ANTI- HAIL
SYSTEMS THROUGH DECISION SUPPORT SYSTEM
This paper deals with the design of a system for decisional support
dedicated to an anti-hail system. It is proposed a specific system for Romania
anti-hail network, which completes the existing systems with specific
information in order to identify the best solutions for both coordination and
launch. The main methods of combating hail are related to the seeding clouds
with rockets, artillery and aircraft, the use of canon shock wave, ground particle
generators and anti-hail nets. The system comprises two main components: a
subsystem of launch decision and a subsystem for assisting the launch
decision. In order to achieve this system, the following important issues are
considered: the use of communication via GPRS, monitoring the parameters
throughout all period of operating, log-values, status and alarms, operator
actions logs, friendly graphical interface and the generation of tabular and
graphical reports for any period. The system enables: an increased efficiency
by shortening the time for action, a good organization and a high degree of
security.
Cuvinte cheie: antigrindină, suport decizional, GIS, monitorizare
Keywords: hail, decision support, GIS, monitoring

79 MICȘORAREA TIMPULUI DE INTERVENȚIE ÎN

21-78 CERCETĂRI PRIVIND ELECTROLIZORUL CELULEI DE COMBUSTIE CU CONŢINUT DE ELECTROLIT SOLID POLIMERIZAT

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Alexandrina ZUZA Cristina Daniela DEAC Ioan BIRIŞ la de

RESEARCH ON SOLID POLYMER ELECTROLYTE
ELECTROLYSER OF THE FUEL CELL
This study analyzes the solid polymer electrolyte electrolyser of the
fuel cell, the theoretical model description and efficiency of the SPE fuel cell
water electrolysis and theoretical aspect of the Butler-Volmer equation. The
model description is used to understand the effects of the parameters on SPE
fuel cell water electrolysis. Recent studies have demonstrated the importance
of the current exchange at the anode chambers and the phenomena at the
anode membrane interface, which is the key point of the entire efficiency of
water electrolysis.
Cuvinte cheie: hidrogen, electroliza apei, SPE, electrolizor SPE,
Nafion
Keywords: hydrogen, water electrolysis, SPE, SPE electrolyser,
Nafion

78 CERCETĂRI PRIVIND ELECTROLIZORUL CELULEI

21-77 INSTALAȚIE EXPERIMENTALĂ PENTRU STUDIUL FORMĂRII STRATULUI DE FUM ȘI GAZE FIERBINȚI ÎNTR-UN SPAȚIU INCENDIAT ȘI A CURGERII ACESTORA PRIN GOLURILE DE VENTILARE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Anastasia SUSAN Daniel Stelian LAZĂR Emese DEMETER Oleg SUSAN Valeriu Nicolae PANAITESCU la de

THE EXPERIMENTAL INSTALLATION FOR THE STUDY ON
THE FORMATION OF HOT SMOKE AND GASES IN A
BURNING ENCLOSURE AND ON THEIR FLOW THROUGH
THE VENTILATION OPENINGS
This paper is an experimental proposal to view and analyze the movement
of smoke and hot gases and the formation of the smoke layer in a burning
enclosure, the latter depending on the degree of ventilation of the room,
thermal loading of the furnace and the thermal inertia of the enclosure. Inside a
sufficiently ventilated burning enclosure, two areas develop: the upper –
containing smoke and hot gases – and the lower one, containing relatively fresh
air. Experiments conducted in this research were primarily aimed at
demonstrating the basic theory that the thickness of the above layers depends
on the ventilation holes and the size of the firebox.
Cuvinte cheie: incendiu, fum, gaze fierbinți, strat de fum, ventilare
Keywords: fire, smoke, hot gases, smoke layer, ventilation

77 INSTALAȚIE EXPERIMENTALĂ PENTRU STUDIUL

21-76 SIMULARE 3D A UNEI SITUAŢII DE INCENDIU LA METROUL BUCUREŞTEAN

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Cătălin NETCU Constantin POPA Ion ANGHEL Valeriu PANAITESCU la de

3D SIMULATION OF A FIRE IN SITUATION
IN BUCHAREST SUBWAY
The article presents the work of the authors concerning the 3D fire
simulation at a subway metro station in Bucharest, Romania. The subject is
very important, as in such a real case of fire in subway stations, large number
of casualties can occur.
Cuvinte cheie: 3D simulare, metrou, foc, simulare de incendiu
Keywords: 3D simulation, subway fire, fire simulation

76 SIMULARE 3D A UNEI SITUAŢII DE INCENDIU

21-75 EVACUAREA UNEI STAŢII DE METROU DIN BUCUREŞTI ÎN CAZUL UNEI SITUAŢII DE URGENŢĂ. SIMULARE COMPUTERIZATĂ 3D

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Cătălin NETCU Constantin POPA Ion ANGHEL Valeriu PANAITESCU la de

EVACUATION OF A BUCHAREST Metro STATION IN CASE
OF EMERGENCY. 3D COMPUTER SIMULATION
The article presents the work of the authors concerning the 3D
evacuation simulation at a subway metro station in Bucharest, Romania. The
subject is very important, as in such a real case that impose real evacuation
from subway stations, large number of casualties can occur and a lot of
attention must be paid to prevention and organizing the evacuation activity.
Cuvinte cheie: simulare de evacuare 3D, foc evacuare, metrou,
modelare de evacuare
Keywords: 3D evacuation simulation, subway, fire evacuation,
evacuation modeling

75 EVACUAREA UNEI STAŢII DE METROU DIN

21-74 ETANOLUL, COMBUSTIBIL CURAT DESTINAT TESTELOR DE INCENDIU. SIMULARE COMPUTERIZATĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Aurelian CONSTANTINESCU Cătălin NETCU Constantin POPA Valeriu PANAITESCU la de

ETHANOL, CLEAN FUEL FOR FIRE TESTS.
COMPUTER SIMULATIONS
The following article presents information on the choice of ethanol
as combustible for suppression tests, after running a computer simulation
program, called Pyrosim.
Cuvinte cheie: etanol, teste de incendiu, modele, simulare, mediu,
Keywords: ethanol, fire tests, models, simulation environment

74 ETANOLUL, COMBUSTIBIL CURAT DESTINAT

21-73 DATE PRIVIND MINERALOGIA STERILULUI REZULTAT ÎN URMA SPĂLĂRII HUILEI LA PREPARAŢIILE DIN VESTUL BAZINULUI PETROŞANI

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Andreea BRAŞOVAN George ARGHIR Ioan PETEAN Vlad CODREA la de

DATA CONCERNING THE MINERALOGY OF STERILE
RESULTED FROM PIT COAL WASHING AT WESTERN
PETROSANI BAZIN PREPARATIONS
The mineral composition of the sterile dumps formed during coal
exploitation and sorting was established during this research. There are found
quartz, potassium feldspar, biotite and calcite. The X-ray diffraction analysis
point out these minerals as well as pronounced crystalline state of the dumped
sterile. The optical mineralogical microscopy reveals the sterile particles
morphology, equiaxial for quartz and calcite and tabular – philliphorm for the
biotite and potassium feldspar. All issued minerals belong to the non coal
intercalations on the geological coal layers.
Cuvinte cheie: steril, huilă, preparaţie
Keywords: sterile, coal, preparation

73 DATE PRIVIND MINERALOGIA STERILULUI REZULTAT

21-72 CARBONIFICAREA HIDROTERMALĂ – O NOUĂ METODĂ DE VALORIFICARE A NĂMOLURILOR DE LA STAȚIILE DE EPURARE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Cristina Daniela DEAC Dragoș PETRUȚIU la de

HIDROTHERMAL CARBONIZATION – A NEW METHOD
FOR WASTE WATER TREATEMENT PLANTS
SLUDGE EXPLOATATION
Sludge management is costly and energy consuming. In this paper it
is discussed the possibility of producing two types of fuels from the excess
sludge. One possibility is to transform it into bio ethanol from sludge and the
other is to use hydrothermal carbonization in order to produce a bio-coal.
Hydrothermal carbonization is a new technology that can use humid waste and
transform it into bio coal. It has low greenhouse gases emission because
almost the entire carbon is kept in the biomass.
Cuvinte cheie: nămol, epurare ape, celuloză, carbonizare
hidrotermală, bio-etanol, bio-cărbune
Keywords: sludge, water treatment, cellulose, hydrothermal
carbonization, bio-ethanol, bio-coal

72 CARBONIFICAREA HIDROTERMALĂ – O NOUĂ

21-71 CONTAMINAREA SOLURILOR DIN ZONELE URBANE STUDIU DE CAZ – PERCEPȚIA RISCURILOR ASOCIATE CONTAMINĂRII SOLURILOR ÎN CLUJ-NAPOCA

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Andra Cristina GAGIU Elena Maria PICĂ la de

CONTAMINATE URBAN SOILS
CASE STUDY – ASSESING RISK PERCEPTION RELATED TO
SOIL CONTAMINATION ÎN THE CITY OF CLUJ-NAPOCA
This paper represents a statistical assessment of the perception of
risks related to urban soil pollution in the city of Cluj-Napoca. In the past few
years, in all over Romania an increasing trend could be noticed in the scientific
interest for soil contamination due to anthropogenic activities. Nevertheless, a
research aiming to assess risks due to the presence of contaminants in top soils
of urban areas has never been conducted and the public society is deprived of
such information in all cities. The present statistical analysis represents a pilot
study for the city of Cluj-Napoca. It is the first step that needs to be taken in
order to properly asses risks. Identifying and understanding risk perception is an
important milestone for any measure aiming to diminish pollution related risks
for health and the environment.
Cuvinte cheie: soluri contaminate, poluare urbană, percepția riscului
Keywords: contaminated soil, urban pollution, risk perception

71 CONTAMINAREA SOLURILOR DIN ZONELE URBANE

21-70 TEHNOLOGIE DE EPURARE BIOLOGICĂ CU CONTACTORI BIOLOGICI ROTATIVI ŞI DIMENSIONAREA FILTRELOR DE EPURARE BIOLOGICĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Marius Florinel RADU Valeriu Nicolae PANAITESCU la de

TECHNOLOGY FOR WASTE WATER TREATMENT WITH
ROTATING BIOLOGICAL CONTACTORS AND
DIMENSIONING OF THE BIOLOGICAL WASTE WATER
TRETMENT
The paper is to review and assess existing rotating biological contactors
(RBC) design procedures and provide in-depth design information on critical
features of the RBC process and key parameters affecting its operation and
performance than is typically available to the engineering community.
Since past decade, the old works started to be replaced with new
technologies such as rotating biological contactors (RBC), especially for small
communities. RBC is an attached – growth biological process, which consists of
a series of rotating plastic media all coated with a layer of bio film.
The bio film or slime on the media aerobically reacts with substances in a
waste stream for bio-oxidation and nitrification, or anaerobic ally react with the
substances for denitrification. This paper discusses the theory, performance,
design procedures, calculation and dimensioning of the RBC process.
Cuvinte cheie: biodiscuri, epurare biologică, contactori biologici rotativi,
ape uzate, scheme de epurare, substanțe organice biodegradabile
Keywords: biological records, biological treatment, rotating biological
contactors, wastewater, sewage schemes, biodegradable organic substances

70 TEHNOLOGIE DE EPURARE BIOLOGICĂ CU

21-69 INFLUENȚA FACTORILOR POLUANȚI ASUPRA CALITĂȚII SOLULUI DIN ARIILE PROTEJATE CU HABITAT PENTRU ARMERIA MARITIMA WILLD

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Alina Maria FODOR Elena Maria PICĂ la de

INFLUENCE OF POLLUTANTS ON SOIL QUALITY IN
PROTECTED AREAS WITH HABITAT FOR ARMERIA
MARITIMA WILLD
This paper is a study of soil quality liveable areas of Armeria Maritima
Willd.
Studies were conducted on soil of protected areas that develop
Armeria Maritima revealed the positive influence they have heavy metals on its
development. Experiments conducted in artificial environment on the plant,
showed tolerance to high levels of pollution with Zn, Cu.
In our country were not surveyed on Armeria Maritima Willd, with a
single protected area of this type.
Cuvinte cheie: poluarea solului, arii protejate, degradare,
biodiversitate, factori poluanți, metale grele
Keywords: soil, protected areas, degradation, biodiversity, pollutants,
heavy metals

69 INFLUENȚA FACTORILOR POLUANȚI ASUPRA

21-68 EFECTELE POLUĂRII FONICE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Adrian Ion CHIVU la de

NOISE POLLUTION IN CARS CURRENT
The effects of the noise pollution are the infrasound’s, the ultrasounds
and the noises.Mechanical vibrations are transmitted to man are injurious
complex, affecting the health and physiological effects and hindering
(hindering) the process to work up to loss of employment. The most important
effects produced by the vibration action is likely physiological, mechanical and
thermal, mainly being the last two.
Cuvinte cheie: stadiul actual, vibroacustica, sonometre
Keywords: stage, acoustic vibration, sound level meters

68 EFECTELE POLUĂRII FONICE

21-67 OBLIGAŢII ŞI EVOLUŢIE ÎN DOMENIUL DEEE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Viorica TODEA la de

OBLIGATIONS AND EVOLUTION IN THE WEEE AREA
The prevention of waste electrical and electronic equipment (WEEE)
and the recycling of such wastes lead to the improvement of the environmental
performance of all operators involved in the life cycle of electric and electronic
equipment: producers, distributors, consumers and operators involved in the
treatment of WEEE. In Romania, the collection from private household and the
recycling of WEEE are not undertaken yet to a sufficient extent.
Cuvinte cheie: deşeuri de echipamente electrice şi electronice,
colectare selectivă
Keywords: electrical and electronic waste, separate collection

67 OBLIGAŢII ŞI EVOLUŢIE ÎN DOMENIUL DEEE

21-66 ROLUL NOILOR TEHNOLOGII ÎN REDUCEREA POLUĂRII GLOBALE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Aurelian PAVEL la de

ROLE OF NEW TECHNOLOGIES IN DECREASING
GLOBAL POLLUTION
The paper tries to pull an alarm signal about pollution and how affect
that our lives. It is presenting some of the ways to follow in the war against the
pollution.
Cuvinte cheie: poluare, creștere demografică, tehnologii noi, tehnologii
depoluante, sateliți, urmărirea evoluției CO2.
Keywords: pollution, population growth, technology, technology
depolluted, satellites, the progress of CO2.

66 ROLUL NOILOR TEHNOLOGII ÎN REDUCEREA

21-65 EFICIENŢĂ ENERGETICĂ PRIN CONTROL DE LA DISTANŢĂ A INSTALAŢIEI DE ÎNCĂLZIRE PENTRU O CASĂ DE VACANŢĂ

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Pavel ŞTEFAN la de

THE ENERGY EFFICIENCY THROUGH CONTROL FROM
DISTANCE OF A HEATING INSTALATION
FOR A HOLIDAY HOME
The option to control efficiently, the heating of a holiday home, from
distance, is a modern method of reducing electricity consumption, leading to
encouraging the more efficient use of energy and to creating a disciplined
behaviour while increasing comfort.
Cuvinte cheie: eficienţă energetică, releu TRC, instalaţie electrică,
casă de vacanţă
Keywords: energy efficiency, TRC relay, electrical installation, holiday
home

65 EFICIENŢĂ ENERGETICĂ PRIN CONTROL DE LA

21-64 STUDIU DE CAZ ASUPRA SISTEMELOR DE RECUPERARE A ENERGIEI ÎN MEDIUL CONSTRUIT, CLĂDIRI INDUSTRIALE PASIVE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Mihai JĂDĂNEANŢ Mircea Paul SĂMÂNŢĂ la de

CASE STUDY ON REUSEBLE ENERGY SYSTEMS WITHIN
BUILDINLGS, LOW ENERGY INDUSTRIAL CONSTRUCTIONS
In this work are presented the main characteristics of sustainable
energy systems used on buildings, especially on houses. The main point in
these systems is the implementation on larger scale buildings and programs
such as industrial models and factories.
Cuvinte cheie: sustenabilitate, energie regenerabilă, casă pasivă
Keywords: sustainability, renewable energy, passive house

64 STUDIU DE CAZ ASUPRA SISTEMELOR DE

21-63 ANALIZA FACTORULUI DE EFICIENŢĂ AL UNUI CAPTATOR SOLAR

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ferenc GÁSPÁR Victor ROŞ la de

ANALYSIS OF EFFICIENCY FACTOR FOR A SOLAR
COLLECTOR
The paper makes an analysis of the efficiency factor of absorbing
plate to improve the conversion efficiency of solar collector. The functional
characteristics of absorbing plate are presented. It is known that the efficiency
factor depend also on the dimensions and geometry of the absorbing plate. In
the final part of the paper recommendations for improving efficiency factor of a
solar collectors are proposed.
Cuvinte cheie: captator solar, factor de eficienţă, randament,
conversia radiaţiei, energie solară.
Keywords: solar collector, the efficiency factor, yield, conversion of
radiation, solar

63 ANALIZA FACTORULUI DE EFICIENŢĂ AL UNUI

21-62 STUDIU PRIVIND DIMENSIONAREA EFICIENTĂ A SUPRAFEŢEI DE CAPTARE PENTRU UN SISTEM TERMO-SOLAR DE ÎNCĂLZIRE A APEI MENAJERE

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Ferenc GÁSPÁR Victor ROŞ la de

STUDY ABOUT EFFICIENT SIZING OF THE TOTAL
COLLECTOR AREA FOR A DOMESTIC SOLAR WATER
HEATING SYSTEM
Sizing a solar water heating system basically involves determining the
total collector area and the storage volume. Hot water demand for a household
over a year can be considered constant. The major problem is determining the
right size for the total collector area avoiding to over and under sizing the
system. The paper analyzes a sizing possibility regarding the efficiency of the
system from an hermetic point of view. The result show the system sized to
ensure hot water demand over the summer period is the most efficient; a
system sized to ensure hot water demand over winter period is oversized and
not efficient.
Cuvinte cheie: energie solară, captator solar, sistem termo-solar,
eficienţa energetică, dimensionare
Keywords: solar, solar collector, solar thermal systems, energy
efficiency, sizing

62 STUDIU PRIVIND DIMENSIONAREA EFICIENTĂ A