摘要
疲劳分析属于当今国内仿真领域的一个共性难题,由于实验无法测得发射装置危险部位的应力水平,文中通过计算结果与实验结果的对比,以计算结果为依据,结合试验对危险部位应力进行修正,从而得到发射装置危险部位的均方根应力,继而得到产品的疲劳寿命。
Fatigue analysis is one of common problems in domestic simulation field,because the stress level of the launcher＇s dangerous position can＇t be measured by the experiment.Compared with the calculation results and experimental results,based on the calculation results,the stress of dangerous sections was revised with the experiment in this paper.Furthermore,the RMS stress of the launcher＇s dangerous position and the fatigue life of the products were gotten.
出处
《弹箭与制导学报》
CSCD
北大核心
2012年第5期171-174,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
疲劳强度
功率谱密度
随机响应
fatigue strength
power spectral density
random response
