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Proposing Institution

Lehrstuhl für Maschinenelemente,TUM
Project Manager

Dr.-Ing. Michael Otto
Boltzmannstr. 15
85748 Garching
Efficiency is becoming more and more a main concern in the design of gear boxes. Increasing the efficiency of power transmissions can give a significant contribution to the reduction of pollutant emissions and energy savings. No-load gear losses make up a remarkable part of the power losses especially in fast rotating gear boxes. Empirical equations can only give a poor approximation for these losses in many cases. Therefore, reliable results can only be produced by time and cost consuming test rigs, as efficient methods for calculating these kinds of losses results are not given. Furthermore, oil distribution is a significant aspect for predicting the life cycle of a gear box. With the aid of the computational fluid dynamics, not only can the no-load gear losses be calculated but also the oil distribution can be predicted with a much higher precision than the empirical equations. The aim of this project is to calculate the gear losses at different operating conditions and to validate these results with experimental data on test rigs. With this method, the institute of machine elements (FZG) wants to detect potentials to reduce costly experiments on test rigs.

Impressum, Conny Wendler