刘龙涛,李传日,马甜,乔亮.有限元仿真在振动结构疲劳分析中的应用[J].装备环境工程,2013,10(4):23-29. LIU Long-tao,LI Chuan-ri,MA Tian,QIAO Liang.Application of Finite Element Simulation in Vibration Structure Fatigue Analysis[J].Equipment Environmental Engineering,2013,10(4):23-29.
有限元仿真在振动结构疲劳分析中的应用
Application of Finite Element Simulation in Vibration Structure Fatigue Analysis
Modal analysis and random vibrationanalysis of airborne product structure was carried out using the finite element analysis software ANSYS for its fatigue analysis. The finite element model was corrected with modal test. Stress response power spectrum was obtained from random vibration analysis. Fatigue damage of the structure was calculated using frequency domain method. The simulation results are in agreement with the reliability enhancement testing results. An optimization scheme for the product structure design was given.
