884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

    李  剛  許  林  程耿東
    （大連理工大學(xué)工業(yè)裝備結(jié)構(gòu)分析國(guó)家重點(diǎn)實(shí)驗(yàn)室  116023）

[提要]  對(duì)基于ANSYS軟件的大型復(fù)雜結(jié)構(gòu)可靠度計(jì)算進(jìn)行了研究。首先，針對(duì)一次二階矩法有時(shí)不收斂的情況提出了一種改進(jìn)方法，對(duì)兩點(diǎn)自適應(yīng)法擬合失效曲面的算法作了修正；然后將結(jié)構(gòu)可靠度計(jì)算模塊連接到ANSYS軟件，并對(duì)大型復(fù)雜結(jié)構(gòu)的失效模式作了簡(jiǎn)要討論。最后對(duì)某大型國(guó)家儲(chǔ)備糧庫(kù)筒倉(cāng)的頂蓋和倉(cāng)壁結(jié)構(gòu)進(jìn)行了可靠度分析。
[關(guān)鍵詞]  大型復(fù)雜結(jié)構(gòu)  結(jié)構(gòu)可靠度  一次二階矩法  兩點(diǎn)白適應(yīng)擬合法

The reliability analysis for the complex large-scale structures is studied. An algorithm for first-order second-moment method is presented to improve its convergence, and the nonlinear adaptive approximation algorithm of structural failure surface using two points is discussed and some amendments are made. The procedure based on the above algorithms is linked to ANSYS software to produce a new one which can perform the reliability analysis for the complex largescale structures. Finally, the failure modes of complex large-scale structures are discussed, and the performance based on reliabilities of the top structure and RC wall of a silo is calculated using the new ANSYS.
Keywords: complex large-scale structures; structural reliability; first-order second-moment method; adaptive approximation; two points