Dr. Damijan Zorko is a Co-CEO at RD Motion. He studied Mechanical Engineering at the University of Ljubljana and received his Ph.D. in 2019. Having 15 years of experience in gear transmissions, he was deeply involved in developing RD Motion’s modern test benches and testing methods for experimental research on gears.
The following study presents an experimental methodology, employed to characterize the NVH behavior of plastic gears NVH in application-like operating conditions, presenting guidelines for material selection in terms of optimal gear NVH.
An extremely wide selection of different plastic materials is currently available on the market. A major limitation, however, is a huge gap in gear-specific material data on these materials, which is a problem that has been persisting for decades now. Providing a step towards a solution is the German guideline VDI 2736, which proposes design rating methods (Ref. 2) along with testing procedures (Ref. 3) to be followed to generate reliable data required in the gear rating process. This paper delves into the current state of the art in plastic gear testing, providing a comprehensive overview of employed testing methods, supplemented with case studies.
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