Modeling frictional heating of fibrous composite brake disk

被引:4
作者
Makhovskaya, Yu. Yu. [1 ]
机构
[1] Ishlinskii Inst Problems Mech, Moscow 119526, Russia
基金
俄罗斯基础研究基金会;
关键词
friction; temperature; composite material; braking; AIRCRAFT BRAKES; TEMPERATURE;
D O I
10.3103/S106836661504008X
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A model for calculating a nonstationary temperature field in a brake disk made of a fibrous composite material has been proposed. The calculation procedure includes solving the heat conductivity problem for a disk with averaged effective thermal conductivities and determining these effective coefficients with account for the structure of the composite at different scale levels, i.e., the structure of a bundle consisting of individual fibers at the microlevel, the dimensions and concentration of the bundles at the mesolevel, and the orientation of the bundles relative to the macroscopic shape of the disk. An example of the calculation of the temperature for a carbon-carbon composite brake disk under conditions of braking implemented in a friction machine is presented. An analysis of the effect of parameters that characterize the structure of the composite and properties of its components on the heating of the disk during braking is carried out.
引用
收藏
页码:286 / 292
页数:7
相关论文
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