Analysis of Random Vibration Fatigue Life of a Electronic Equipment

In this paper,the fatigue life of a electronic equipment is analysed. First, we get the equipment's 1σ stress distribution via PSD( Power Spectral Density) analysis in the ANSYS software. Then, using the Gaussian three interval method and Miner cumulative damage law,the equipment's fatigue life is analyzed.The analysis results are similar with the following experiment results,which proved that the method used in this paper is helpful in the fatigue life analysis of electronic equipments.