Open AccessAn Analysis of the Coupling Between Temperature and Thermal Stress of Disc Brakes Based on Finite Element
Author(s) -
Min Wen
Publication year - 2021
Publication title -
heat and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.283
H-Index - 29
ISSN - 0392-8764
DOI - 10.18280/ijht.390616
Subject(s) - disc brake , finite element method , coupling (piping) , mechanics , heat flux , materials science , brake pad , brake , stress (linguistics) , heat transfer coefficient , dissipation , thermal , convection , heat transfer , mechanical engineering , structural engineering , engineering , thermodynamics , physics , composite material , linguistics , philosophy
Disc brakes have been more widely used in recent years due to its many merits such as fast heat absorption and dissipation, and resistance to water fade. Since it’s difficult to describe the failure of brakes under complex working conditions in only a few times of thermal-structural coupling simulations, this paper analyzed the coupling between temperature and thermal stress of disc brakes under multiple continuous braking conditions. At first, a 3D model of bus disc brake was built in ABAQUS, and its braking motion and dynamic parameters, heat flux density, convective heat dissipation coefficient, heat flux distribution coefficient, and other thermodynamic parameters were calculated. Then, the numerical simulation of the temperature field of disc brake and the coupling analysis of thermal stress under different braking conditions were completed. At last, experimental results gave the analysis results of the temperature distribution characteristics of brake disc surface, and the comparison and demonstration of the finite element analysis were conducted.