An Experimental Study on the NVH Performance of Plastic Gears
High-performance plastic gears are increasingly replacing metal gears in a multitude of applications due to their many advantages. The most important of these are lower weight, substantially reduced lubrication requirements, more cost-effective mass production, significantly better NVH (noise, vibration and harshness) behavior, and chemical resistance. 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.
Plastic Gear Testing Methods—Characterization of Crucial Material Data Required for Reliable Design of Plastic Gears
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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GWJ Technology Releases New Version of TBK Software
GWJ Technology GmbH has released a new version of its TBK desktop calculation solution for designing, recalculating and optimizing gears, shafts, bearings, bolted joints, shaft-hub connections and other machine elements.
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