摘要
随机振动应力分析是有限元分析中的一个难点。本文在早期随机振动试验做法的基础上,提出了随机振动峰值应力的计算方法,并以铝板模型为研究对象对该方法进行了分析与试验验证。结果表明,通过该方法计算的随机振动峰值应力与试验结果相比误差在10%以内。在此基础上,对遥感相机的发射镜组件进行了试验前的随机振动峰值应力预示分析,试验结果表明,预示分析结论与试验结果相符。
Stress analysis of random vibration is a difficult point in FEA.An algorithm of analyzing random vibration peak stress value was got from primitive random vibration test.Aluminum sheet was analyzed and verified by test with the algorithm.The results showed that the difference between calculated peak stress values and test results was within 10%.On the basis of the results,the random vibration peak stress values predicted analysis was made for the major mirror set of optical remote sensor.The test results showed that there was consistency between predicted analysis conclusion and test results.
出处
《光机电信息》
2010年第8期36-40,共5页
OME Information
关键词
随机振动
应力分析
遥感相机
random vibration
stress analysis
remote cameras
