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이득원(Deuk-Won Lee),이철희(Chul-Hee Lee),윤혁채(Hyuk-Chae Yun),조원오(Won-Oh Cho),김교헌(Gyo-Heon Kim),박정률(Jeong-Ryul Park) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Generated axial force (GAF) due to internal friction of driveshaft joint is one of the causes generating the shudder of vehicle. It also causes vibration problem on steering wheels of vehicles during idling. In this study, automated test machine is developed to precisely measure the GAF caused by internal friction in constant velocity joints. As the developed machine can control the temperature of joint, loading torque, angle of rotation and joint angles, actual vehicle driving condition can be applied. In order to validate the developed constant velocity joint tester, GAF is compared by using different types of grease in tripod joints. Also GAF is measured for both on new and used constant velocity joints to be compared and analyzed. The test result shows the repeatability and consistency of the test machine in terms of the different test conditions. By using the constant velocity joint tester, friction performance of the joint can be evaluated by proposing the best constant velocity joints as well as greases generating lowest GAF.