基于ABAQUS有限元分析的输送管疲劳寿命优化设计

摘要

Two improved schemes of the piping are presented in the paper. One is to place the connection-line nozzle for sensor near the fixed flange at the engine side, the other is to use the structure of bellows with net cover. Through the finite element analysis method of Abaqus/Standard, it is verified that the two optimiztion designs are effective for improving the fatigue life of the pipeline configuration.%采用有限元分析软件ABAQUS/Standard分析薄壁输送管传感器接管嘴与网套波纹管结构形式对输送管疲劳寿命的影响。仿真结果表明，将输送管传感器接头布置在靠近发动机端，有利于降低管接头处的振动响应，从而提高管接头的疲劳寿命；网套波纹管的局部结构对输送管的疲劳寿命有较大影响，通过优化局部结构，疲劳寿命明显提高，并经过了试验验证。