Johannes Lövenich M. Sc. studied mechanical engineering B. Sc. and design and development M. Sc. at RWTH Aachen University. Since 2019 he is a scientific assistant at the Laboratory of Machine Tools and Production Engineering (WZL) of RWTH Aachen University, Chair of Machine Tools. His field of research is the gearbox power density, with focus on the investigation of very high cycle fatigue of the tooth root.
Aircraft engines can be made more efficient by integrating planetary gears. In such an application, the planetary gears experience very high load cycles under fully reversed bending loads. Pulsator test rigs, which nowadays offer the possibility to perform UHCF investigations, can only be used for purely pulsating loading of gears. Therefore, for the investigation of the UHCF tooth root load carrying capacity under fully reversed bending load, a back-to-back test rig is required. Back-to-back test rigs usually have speeds of n = 3,000 rpm, which makes investigations in the UHCF range take a very long time. Therefore, a high-speed back-to-back test rig was developed.
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