Eugen DOBÂNDĂ


32-12 OBSERVAŢII PRIVIND SOLICITĂRILE PALETELOR TURBINELOR EOLIENE CU AX ORIZONTAL

NOTES ON THE MECHANICAL STRESSES OF THE

BLADES OF HORIZONTAL AXIS WIND TURBINES

 

The paper presents an analysis of mechanical stresses on the blades of a small horizontal axis wind turbine.

 

Keywords: wind turbines, forces, deformations

Cuvinte cheie: turbine eoliene, forţe, deformări

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29-43 OBSERVAŢII ASUPRA STRATEGIEI DE UTILIZARE A APEI DINTR-UN LAC DE ACUMULARE A UNEI HIDROCENTRALE

NOTES ON A STRATEGY OF USING THE WATER FROM
A HYDROPOWER STATION LAKE
The paper discusses a method to predict the use of water in case of a
hydropower station.
Keywords: hydroelectric, water resources, rationality, compensation
Cuvinte cheie: centrale hidroelectrice, resurse de apă, raţionalitate,
compensare

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25-47 OBSERVAŢII PRIVIND INFLUENŢA CÂMPULUI DE VITEZE ASUPRA GEOMETRIEI PALETELOR TURBINELOR EOLIENE CU AX ORIZONTAL

NOTES ON THE INFLUENCE OF SPEED FIELD ON
THE GEOMETRY OF HORIZONTAL AXIS WIND TURBINES
Unlike hydraulic turbines, wind turbines operate ”in open apparatus”.
Thus, the field of velocities and pressures has direct influence on the operation
of the turbine. The paper presents an analysis of the influence of the speed
field on the geometry of the blades of horizontal axis wind turbines.
Keywords: wind turbines, geometry, optimization
Cuvinte cheie: turbine eoliene, geometrie, optimizare
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19-81 NOTE PRIVIND MODELAREA MATEMATICĂ A UNOR SISTEME SPECIALE

NOTES ON THE MATHEMATICAL MODELING
OF SOME KIND OF SPECIAL SYSTEMS
The paper discusses a brief view on a mathematical approach of a
special kind of systems: the financial services.
Keywords: mathematical modeling, finance, financial product
Cuvinte cheie: modelare matematică, finanţe, produs financiar

81 NOTE PRIVIND MODELAREA MATEMATICĂ


23-15 EDUCAȚIA – CALE SPRE SUCCES

EDUCATION – ROAD TO SUCCESS
The paper is an essay on permanent education and its importance for
our self-development.
Cuvinte cheie: educație, educație permanentă, persoană de succes,
dezvoltare personală
Keywords: education, permanent education, successful, strong
personal shrinking pot

23-15 EDUCAȚIA – CALE SPRE SUCCES


24-51 NOTE PRIVIND MODELAREA MATEMETICĂ ÎN REGIM CVASI-DINAMIC A UNEI CLASE DE MICROTURBINE HIDRAULICE

NOTES ON THE MATHEMATICAL MODELING IN
QUASI-DYNAMIC REGIME OF A CLASSES
OF MICROHYDROTURBINE
The paper presents an analysis of the behavior of a special class of
micro turbines – the cross flow hydraulic turbines, also called Banki – Michell
turbines in cvasi–static and dynamic regimes.
Cuvinte cheie: modelare matematică, microturbine, regimuri cvasi
statice, regimuri dinamice
Keywords: mathematical modelling, quasi static micro turbine,
regimes, dynamic systems

51 NOTE PRIVIND MODELAREA MATEMETICĂ


22-10 NOTE ASUPRA COMPORTĂRII UNEI AXE HIDRAULICE

The paper presents the components and the behavior of a hydraulic
axe, used to simulate the yaw mechanism of a wind turbine. Are presented,
synthetic calculations for sizing stand and the main experimental results
obtained. Has been carried out static and dynamic control and record the
results being achieved with the computer attached to the stand.
Cuvinte cheie: turbine de vânt, reglare, model matematic, încercări
statice, încercări dinamice
Keywords: wind turbine, control, mathematical model, static testing,
dynamic testing

10 NOTE ASUPRA COMPORTĂRII UNEI