航空机轮轮毂的静力和疲劳分析及其结构改进

以航空机轮轮毂为研究对象,采用Hypermesh、Ansys、MSC.Fatigue软件进行联合仿真。相比采用Ansys软件,联合仿真理论上得到的网格质量更好、计算时间更短、结果与实际情况更吻合。本文在仿真的不同阶段采用不同的软件,完成了模型的网格划分、静强度分析以及疲劳寿命分析的仿真。仿真结果表明:最大应力均未超过材料的强度极限,仿真和理论估算得到的疲劳寿命相差10%左右,符合设计要求。基于此提出了轮毂结构的改进建议。

Static and Fatigue Analysis of Aircraft Wheel Hub and Its Structural Improvement

The aircraft Wheel Hub was taken as the research object. Hypermesh, Ansys, MSC. Fatigue were combined to simulate and analyze. Compared with the entire process by using Ansys software, the quality of the grid is better, the computing time is shorter, and the result match better with the actual situation. According to the simulation results, the maximum stress did not exceed the strength limit of the material. The fatigue life of the simulation was about 10%different from the theoretical one, and the fatigue life was in accordance with the design requirements. Based on the results of static analysis, the improvement advice of wheel structure was put forward.