| As automatic transmission is the main trendcy development of passenger car market,many commercial vehicle manufactures are gradually to explore automatic transmission field.On the condition of commercial vehicle automation development trendcy,domestic clutch manufacturers are also developing various new push-type high-torque clutches to meet the needs of fast-growing car industries.At present,the mainly method to validate the design of clutch is bench test.It is not convenient for the design update,because the testing cost is high,and the samples of clutch cost a long manufacture period.Clutch simulation analysis still stays in the part validation stage without a systematical validation procedure for the whole system and product.Consequently,new clutch cannot be validated during the design stage which increases time and cost in the design period.In order to establish the simulation analysis procedure,enhance the validation ability in the clutch design stage,this paper gives a finite element methodology for the key parts and assembly of diaphragm spring clutch,in which a large torque push clutch is taken as the research object.Aimed at the evaluation for the hysteresis effect induced by pre-damping stage and main damping stage,a dynamic model based on the vibration reduction characteristics of the driven disk torsion is built.By establishing the control system and dynamics model,and the physical model of the clutch assembly,to simulate the bench test,and to verify the reliability of the analytical model.According to the comparison,we can correction the analysis model of the clutch system,so as to develop a verification process for the clutch product design phase. |
