Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2021, Vol. 12 ›› Issue (2): 173-179.DOI: 10.3969/j.issn.1674-8484.2021.02.004

• Automotive Safety • Previous Articles     Next Articles

Experiments and simulations of bimetal drum brakes at high temperature conditions

BIAN Jiang(), WANG Xiaoying, GUI Liangjin, FAN Zijie*()   

  1. School of Vehicle and Mobility, Tsinghua University, and State Key Laboratory of Automobile Safety and Energy, Beijing 100084, China
  • Received:2021-03-09 Online:2021-06-30 Published:2021-06-30
  • Contact: FAN Zijie E-mail:bj18@mails.tsinghua.edu.cn;zjfan@tsinghua.edu.cn

Abstract:

A bench test was carried out at high temperature working conditions of nearly 500 ℃ for a bimetal drum brake of a heavy truck to explore the dynamic characteristics in the working process of the brake. Measured the dynamic strains and the dynamic temperature properties for the brake during braking. Conducted thermal-stress-wear coupling analysis by using a finite element (FE) software ABAQUS. The results show that the circumferential strain on the brake drum outer surface exhibits an approximately periodic alternating characteristic. The circumferential direction is the main deformation direction of the brake drum, and the maximum circumferential stress appears at the opening edge. The friction lining wear distribution is extremely uneven. These results verify the good accuracy of the bimetal drum brake FE model, which can be used as a basis of the failure analysis and structural optimization for bimetal drum brakes.

Key words: vehicle safety, bimetal drum brake, high temperature conditions, dynamic strain, dynamic temperature, finite element (FE) software

CLC Number: