Design and performance study of clutch disc assembly of wide-angle and large-hysteresis multi-stage damper

Abstract The clutch is an important component of the automobile driveline system, and its function is to ensure stable starting, smooth shifting and easy operation of the automobile. Judder and tremble are two kinds of common vibrations when a car starts, which seriously affect the driving and riding feelings of people in the car. Starting vibration and shaking are two kinds of common vibration in the beginning of a car, which seriously affect the driving and riding experience of people in the car. These two kinds of starting vibrations are closely related to the dry friction clutch in the driveline system, and the multi-stage torsional damper located on the clutch disc assembly plays an important role in the torsional characteristics of the vehicle driveline system. The stability of transmitted torque in automobile driveline system is directly affected by clutch torsional performance. In order to effectively eliminate torsional vibration and noise of driveline system excited by engine and improve driving comfort, this paper studies the structure and functional principle of wide-angle and large-hysteresis multistage damper disc assembly, and puts forward wide-angle and low-stiffness damping technology, large-hysteresis clutch technology, new split-type pre-damping structure technology, component protection buffer damping structure technology and multistage damping structure technology, and puts forward systematic solutions to effectively reduce driveline system vibration and noise.