Abstract：Simulation can guide the quantitative design of accelerated tests under multi-stress conditions, to shorten the test period. This paper has acquired the stress and strain responses of spacecraft steering gear under different load types and amplitudes using Finite Element Analysis (FEA). Hereby, the working load limit of the steering gear was determined, and the initial accelerated test profile had been established. According to the stress and strain responses, the fatigue life was calculated and the accelerated factor model of steering gear under multi-stress was established. Based on the above, the initial accelerated test profile was modified when the accelerated ratio was no less than 5, and the final test profile was obtained. The method provides a reference for the multi-stress accelerated test of such spacecraft electromechanical products.
王海东, 刘博, 王肇喜, 蒋刚. 基于多应力仿真分析的舵机加速试验剖面设计方法[J]. 空天防御, 2023, 6(2): 49-54.
WANG Haidong, LIU Bo, WANG Zhaoxi, JIANG Gang . Design and Analysis of Accelerated Test for Steering Engine Under Multi-Stress Condition. Air & Space Defense, 2023, 6(2): 49-54.
