EXPERIMENTAL AND NUMERICAL STUDY OF THERMAL ANALYSIS OF HIGH-SPEED FRICTION BRAKING SYSTEM

Author:

ZHANG CHUNMEI1,LI YONGFENG1

Affiliation:

1. Department of Mechanical and Electrical Engineering, Henan Mechanical and Electrical Engineering College, Xinxiang 453002, China

Abstract

Thermal analysis can be used as one of the basis for the friction pair material selection in high-speed friction braking system. In this study, the experimental results showed that surface temperature could be reduced by increasing the radius of the friction disk or thermal conductivity coefficient of disk material with stable braking; In the early stage of long braking, the temperature on the friction surface rises rapidly, but further braking does not lead to a significant rise in temperature; In the case of short braking, there is not enough time for the friction surface to reach the critical temperature, and the disk surface reaches the maximum temperature at the end of braking. During long braking, the dimensionless time capacity of the friction surface reaching the highest temperature is F0 ≈ 0.1F0s.

Publisher

World Scientific Pub Co Pte Lt

Subject

Industrial and Manufacturing Engineering,Strategy and Management,Computer Science Applications

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