Impacting load control of floating supported friction plate and its experimental verification

12th International Conference on Damage Assessment of Structures

Ning, Keyan^1 ; Wang, Yu^2 ; Huang, Dingchuan^2 ; Yin, Lei^2

Science and Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute, China^1

State Key Laboratory of Mechanical, Chongqing University, China^2

关键词: Damping material;    Experimental verification;    Floating support;    Friction plate;    High temperature;    Impact loads;    Tooth root stress;    Variable damping;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/842/1/012070/pdf
DOI  :  10.1088/1742-6596/842/1/012070

来源: IOP

【 摘 要 】

Friction plates are key components in automobile transmission system. Unfortunately, due to the tough working condition i.e. high impact, high temperature, fracture and plastic deformation are easily observed in friction plates. In order to reduce the impact load and increase the impact resistance and life span of the friction plate. This paper presents a variable damping design method and structure, by punching holes in the key position of the friction plate and filling it with damping materials, the impact load of the floating support friction plate can be controlled. Simulation is applied to study the effect of the position and number of damping holes on tooth root stress. Furthermore, physic test was designed and conducted to validate the correctness and effectiveness of the proposed method. Test result shows that the impact load of the new structure is reduced by 40% and its fatigue life is 4.7 times larger. The new structure provides a new way for floating supported friction plates design.