The Annals of "Dunarea de Jos" University of Galati. Fascicle VIII: Tribology http://arthra.ugal.ro/handle/20.500.14043/25240 2026-04-07T16:56:06Z 2026-04-07T16:56:06Z Iosifescu, Cristian Constantin http://arthra.ugal.ro/handle/20.500.14043/27959 2024-05-16T07:48:29Z 2018-01-01T00:00:00Z

Calculul și construcția schimbătoarelor de căldură frigorifice Iosifescu, Cristian Constantin

2018-01-01T00:00:00Z Tadic, Branko Marjanovic, Nenad Nedic, Bogdan http://arthra.ugal.ro/handle/20.500.14043/25247 2020-09-03T13:24:18Z 2006-01-01T00:00:00Z

Bending of Thin Walled Pipes Using the Heat Realised by Friction Tadic, Branko; Marjanovic, Nenad; Nedic, Bogdan This paper considers appliance of heat generated by friction to relieve deformation of light metals, having as example of bending thin walled copper pipes. Based on numerous, primarily experiment analysis the conclusions have been applied for designing a machine for bending of thin walled copper pipes having small bend radius. The machine’s design is relatively simple, but it provides realisation of needed temperatures within required narrow area. Large number of tests has shown the reliability of suggested methodology. THE ANNALS OF UNIVERSITY “DUNĂREA DE JOS “ OF GALAŢI FASCICLE VIII, XII, 2006, ISSN 1221-4590 TRIBOLOGY

2006-01-01T00:00:00Z Rîpă, Minodora Deleanu, Lorena Chiculiță, Simona http://arthra.ugal.ro/handle/20.500.14043/25248 2020-09-03T13:24:18Z 2006-01-01T00:00:00Z

Overview on the Implementation of Tree Test Methods for Conformity Assessment of Fluids Rîpă, Minodora; Deleanu, Lorena; Chiculiță, Simona This paper presents three test methods for conformity assessment of technical fluids, all included in international, European and Romanian standards and their relevance for work security and health. THE ANNALS OF UNIVERSITY “DUNĂREA DE JOS “ OF GALAŢI FASCICLE VIII, 2006, ISSN 1221-4590 TRIBOLOGY

2006-01-01T00:00:00Z Imecs, Maria Incze I., Ioan Szabó, Csaba http://arthra.ugal.ro/handle/20.500.14043/24881 2023-07-14T08:24:48Z 2002-01-01T00:00:00Z

Simple Approach for Induction Motor Control Using Reconfigurable Hardware Imecs, Maria; Incze I., Ioan; Szabó, Csaba The paper deals with rotor-field-oriented vector control structures for the induction motor drives fed by the so-called tandem frequency converter. It is composed of two different types of DC-link converters connected in parallel arrangement. The larger-power one has current-source character and is operating synchronized in time and in amplitude with the stator currents. The other one has voltage-source character and it is the actuator of the motor control system. The drive is able to run also with partial-failed tandem converter, if the control strategy corresponds to the actual operating mode. A reconfigurable hardware implemented in configurable logic cells ensures the changing of the vector-control structure. The proposed control schemes were tested by simulation based on Matlab-Simulink model. The Annals of "Dunarea de Jos" University of Galati Fascicle III, 2002

2002-01-01T00:00:00Z