Fatigue Calculation of Cabin Connection Screws in Precision-Guided Bomb
A fatigue calculation method with preload screw was proposed in order to solve the problem of fracture of cabin conection screws in the process of random vibration of precision-guided bomb.In this paper,based on the Palmgren-Miner linear cumulative damage theory and Goodman fatigue damage calculation method,finite element analysis is used to calculate the random vibration fatigue of cabin connection screws with preload force,and check the fatigue life of cabin connection screws,which provides a theoretical calculation method for fatigue calculation of connecting screws in the cabin of precision-guided bomb.