GDN-17 RECENT ADVANCES IN AUTOMOTIVE GEAR PAIR DYNAMIC BEHAVIOUR MEASUREMENT AND PREDICTION - A REVIEW(GEAR DYNAMICS AND NOISE)

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Research into gear pair dynamic behaviour together with gear whine has been reported in detail by many authors. The understanding and control of these phenomena is of paramount importance to the automotive engineer. As the power of predictive modelling software has increased, it has enabled the automotive engineer to control levels of transmission error and gear pair dynamic behaviour thus reducing tonal gear whine, resulting in substantial improvements in transmission refinement. With the development of more powerful analytical tools the need for an advanced experimental means of validation has become apparent. This paper reviews the literature and recent advances made since a series of reviews by Powell [1,2], Munro [3], Ozguven et al [4] and Houser [5] published circa 1990. The principal conclusion of this review points to the need for a dedicated research tool that permits the investigation of gear pair behaviour under real-time automotive conditions. The University of Leeds in conjunction with Ricardo MTC Ltd. have developed a research tool that meets the requirements identified by the review. This paper discloses information on the new gear pair test rig that will be based at Leeds University and the areas of research that the new automotive transmissions research group will undertake.

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