制动盘表面微结构仿生构建与应力场分析

制动盘摩擦磨损不均匀易引起制动失效,导致重大交通事故的发生。基于蝗虫体表因具有非光滑表面结构而表现出的良好耐磨特性,应用SolidWorks三维制图软件建立了不同制动盘表面微结构仿生模型。运用ANSYS Workbench仿真软件,对不同表面微结构制动盘在不同初始速度下摩擦制动过程中的制动时间及应力分布情况进行了分析。得到了仿生制动盘表面结构的变化对制动性能和耐磨性能的影响情况,表明直沟槽表面制动盘的制动性能和耐磨性能相对较好。该研究结果对寻求一种制动性能和耐磨性能良好的仿生制动盘表面优化设计方法提供了理论基础。

Bionic microstructure surface building and stress field analysis of brake disc

The uneven brake disk friction leads to the generation of brake failure, which results in serious traffic accidents frequently. Based on the excellent wear-resisting properties deriving from locust''s non-smooth surface structure, different bionic models of the brake disc with microstructure surface were established with three-dimensional mapping software SolidWorks. Based on ANSYS Workbench, we analyzed the braking time and the stress distribution between discs possessing distinct microstructure surface and friction plate during friction braking under different initial velocity. The results presented that the variation of the bionic brake disc surface structure performs effect on braking performance and wear resistance. Brake disc with straight groove surface exhibits relatively good braking performance and wear resistance. The result provides a theoretical basis for seeking an optimization design method which is used to find a bionic brake disc surface with good braking performance and wear resistance.