Abstract

In the paper, the initiation of thermoelastic instability under unsteady friction of anisotropic disc samples is considered. This process takes place during the operation of high-load braking systems in aviation and railway transport, special-purpose clutches for vehicles, and in other mechanisms. The instability leads to overheating of the friction surfaces, increased wear, and instability of the friction torque. The mutual influence of wear, friction-induced heating, and elastic deformations of the friction surface is modeled by a finite difference method. The process of friction and wear of discs is studied, taking into account the history of a series of braking actions. The annular pattern of the surface pressure and temperature distribution is considered and the influence of the emerging instability on the wear of the disc surface is determined.

中文翻译：

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热弹性不稳定性对复合制动盘磨损的影响

摘要

在本文中，考虑了各向异性圆盘样品在非定常摩擦下的热弹性不稳定性的引发。该过程发生在航空和铁路运输中的高负荷制动系统，车辆专用离合器以及其他机构的运行期间。不稳定性导致摩擦表面过热，增加的磨损以及摩擦扭矩的不稳定性。磨损，摩擦引起的加热以及摩擦表面的弹性变形的相互影响是通过有限差分方法建模的。考虑到一系列制动动作的历史，研究了碟片的摩擦和磨损过程。