Daniel Gheorghe LAKATOS


32-63 CONSIDERAȚII ASUPRA TENSIUNILOR ȘI DEFORMAȚIILOR DIN CADRELE PRESELOR DE MARE TONAJ

CONSIDERATIONS ON THE FRAMES STRESSES

AND STRAINS HEAVY PRESSES

 

In paper presents a theoretical study of the state of stress and strain in the machine frame framework heavy press. These frameworks are made up of a plurality of frames each comprised of two closed C-shaped elements (calipers) connected by tightening by means of threaded rods (Fig. 1)

 

Keywords: press, frame, strength, stress, deformations, thrusts

Cuvinte cheie: presă, batiu, forță, tensiuni, deformații, tirant

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31-15 ASPECTE PRIVIND ISTORICUL AUTOMOBILULUI ROMÂNESC – Partea a III-a

ASPECTS OF HISTORY ROMANIAN CAR – part III

 

At the beginning of last century, Romania was one of the richest European countries, among the first 10 countries that have introduced the car since its inception.

It presents the first transport vehicles in Romania dates back to 1895 are represented by two hybrid trucks with steam. „The Karaso” Simplon exotic convertible is a car made in Resita, in the style roadsters from the 50s. Vintage cars are not just cars, they can be considered on its own history on wheels, ideal combination for nostalgic times in which power was aesthetics, elegance and refinement. The oldest car in the west is a nice Ford Model A, 1928. The tradition left by the big names in automotive construction must be respected, promoting the work of some young Romanian students from technical universities and their achievements: University „Ovidius” in Constanta, Technical University „Gh. Asachi” University and University of Pitesti.

 

Keywords: car, inventions, „The Karaso” Simplon, vintage cars, technical achievements student

Cuvinte cheie: automobil, invenții, ”De Karaso” Simplon, mașini de epocă, realizări tehnice studențești

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30-41 STRATEGII ALTERNATIVE DE TRANSPORT BAZATE PE TEHNOLOGII AVANSATE

ALTERNATIVE TRANSPORTATION STRATEGIES
BASED ON ADVANCED TECHNOLOGIES
Current systems of transport follow a transition period, regarding the
main sources of propulsive, but also about the movement principle. This
transition is imposed by the requirements of the population mobility acute
increasingly, travel times smaller, reducing the quantities of fossil fuels, the
need to reduce the level of pollution from transport, etc. Nowadays are currently
already used hybrid, hydrogen, electric cars and electromagnetic trains, but
they all require by the primary resource a kind of conventional energy, so the
desired effects are obtained at a reduced level. Thus, following the various
investigations, it was achieved the possibility of build some transport systems
concepts and prototypes, which to use as energy for propulsion, the
unconventional, free, easy to obtain and inexhaustible energy.
Keywords: Plasmatic energy, nuclear Plasmatic fusion, magnetic
fields, gravitation, inertia, levitation
Cuvinte cheie: energie plasmatică, fuziune plasmatică nucleară,
câmpuri magnetice, gravitație, inerție, levitație

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29-29 CONCEPTUL DE INDUSTRIE BAZATĂ PE CLUSTERE INOVATIVE ÎN EUROPA: O ANALIZĂ A SECTORULUI SOFTWARE

CONCEPT OF INDUSTRY BASED ON INNOVATIVE
CLUSTERS IN EUROPE: AN ANALYSIS OF
SOFTWARE SECTOR
This article presents the evolution of creative industries along the time
and the growth of the enterprises from Europe in clusters. The literature that
treats the cluster policy was also analyzed. The focus was on software
companies, specifically on the comparison between ten countries that are in the
Danube region, based on information provided by Cluster Observatory. The
Cluster Observatory is an online, free and user-friendly platform that provides a
single access point to data and an analysis of clusters, cluster organizations
and regional microeconomic framework conditions in Europe.
Keywords: creative industries, cluster, innovation, software
Cuvinte cheie: industrii creative, cluster, inovare, soft

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27-21 CONSTRUCȚII LA SUPERLATIV FOLOSIND CABLURILE DE OȚEL

CONSTRUCTION AT ITS BEST USING THE STEEL CABLES
Cables, springs, screws or steel wires, as well as many other wire industry products, are processed worldwide because they are absolutely essential for transmission of electricity, electronic data or mechanical forces.
This present study presents the most impressive engineering constructions made using steel cables, highlighting their importance in the development and progress in this area.
Keywords: bridge, steel cables, viaduct, steel wire
Cuvinte cheie: pod, cabluri de oțel, viaduct, sârmă de oțel

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25-78 DETERMINAREA COMPORTAMENTULUI LA OBOSEALĂ A SÂRMELOR ZINCATE ȘI NEZINCATE UTILIZÂND PROGRAMUL DE SIMULARE ANSYS

DETERMINATION OF GALVANIZED WIRE FATIGUE
BEHAVIOR USING ANSYS SIMULATION SOFTWARE
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.
This study discusses the fatigue behaviour of the wires, making a
comparison of results obtained on galvanized wire specimens and on
ungalvanized wire specimens, using Ansys analysis program.
Keywords: fatigue, meshing, CAD model, number of cycles
Cuvinte cheie: oboseală, discretizare, model CAD, număr de cicluri
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20-67 ZINCAREA TERMICĂ – O TEHNOLOGIE MODERNĂ

DIP GALVANIZING – A MODERN TECHNOLOGY
Steel is a key component in many fields and industrial branches. Due
to the hardness, elasticity and toughness of it came to be used in increasing
proportions.
But it has a big disadvantage: a low resistance to corrosion in both
exterior and interior environments. For this reason it is essential to prevent
corrosion and has become a major problem these days.
A method of anti corrosive protection is hot dip galvanizing. This
solution is used in increasing proportions due to long-term savings and low
maintenance cost offered by it.
Keywords: zinc, galvanizing, steel, iron
Cuvinte cheie: zincare, zincare termică, oţel, fontă

67 ZINCAREA TERMICĂ – O TEHNOLOGIE MODERNĂ


23-69 METODE DE DETERMINARE A CONSTANTELOR ELASTICE DE MATERIAL

METHODS FOR DETERMINING THE ELASTIC
CONSTANTS OF THE MATERIAL
The behaviour of materials under the action of the loads can be
characterized by using some physical constants, called mechanical
characteristics and material elastic.
The present research represents a synthesis of analytical and
experimental methods to determine those characteristics of material.
Cuvinte cheie: tracțiune, constantă elastică, tensiune
Keywords: traction, elastic constant, stress

23-69 METODE DE DETERMINARE A CONSTANTELOR ELASTICE DE MATERIAL


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

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