Abstract
A tripod constant velocity joint is used in the driveshaft of front wheel drive vehicles. Thrust force generated by this joint causes lateral vibration in these vehicles. To determine mechanisms inducing the thrust force, a detailed model is constructed based on a multibody dynamics approach. Though the joint is equipped with three rollers and grooves, this model consists of principal parts concerned with one roller and groove in order to precisely analyze frictional phenomena occurring between the roller and the groove. These principal parts are defined as rigid bodies and are connected by force elements of contact and friction. The appropriateness of this model is verified by comparing computational and experimental results and it is clarified that the principal factors inducing the thrust force are three kinds of sliding friction force at a contact point between the roller and the groove. This paper also describes the reason that the third rotating order component of the thrust force is induced by one roller and groove.
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