凹槽结构对飞机制动盘制动过程中温度场和应力场的影响

Effect of groove structure on the temperature fieldand stress field of the aircraft brake disc during the braking process

为研究动盘表面凹槽结构对制动盘在制动过程中温度场和应力场的影响,针对飞机多圆盘式刹车装置建立了有限元计算模型,分析了动盘表面凹槽结构对其温度场和应力场的影响,并利用ABAQUS对其进行仿真分析。仿真计算得到的温度场和应力场分布与实际情况基本吻合,证明了所建立模型的合理性和可行性,之后对动盘表面凹槽结构对刹车装置温度场和应力场的影响进行了分析,研究结果表明:动盘表面的凹槽结构会使制动盘在制动过程中的温度升高,并且其内部会在制动过程中产生更大的应力梯度。

In order to study the influence of the groove structure on the surface of the moving disc on the temperature field and stress field of the brake disc during the braking process, a finite element calculation model was established for the aircraft multi-disc brake device, and ABAQUS was used for the simulation analysis.The temperature field and stress field distribution obtained by the simulation were basically consistent with the actual situation, which proved therationality and feasibility of the established model.Then the influence of the groove structure on the temperature field and stress field of the brake device was analyzed, and the research results showed that the groove structure would raise the temperature of the brake disc during the braking process, and would generate great stress gradient during the braking process.