摘要
结合板壳单元 ,在载荷随机的情况下 ,给出了利用随机有限元计算大型、复杂结构可靠度的方法 ,推导了相应的计算公式 ,计算了 QTJS1 60铁路救援起重机伸缩式吊臂的可靠度。结果表明此方法是结构可靠度分析的一种有效方法 ,可以推广应用于其它大型工程结构的可靠度分析。
A new method based on SFEM was developed for the calculation of reliability of structures,and corresponding computation formula was deduced on the condition that the nodal loads are stochastic and that the plate and shell elements are taken into consideration.The reliability of telescopic jib of 160t railway rescue crane was calculated.Calculation results show that the method is an effective approach for structure reliability analysis and also can be used for large scale structures.
出处
《石家庄铁道学院学报》
2000年第1期1-4,共4页
Journal of Shijiazhuang Railway Institute
关键词
随机有限元
板壳元
起重机伸缩臂
可靠度
SFEM plate and shell element crane telescopic jib reliability
