基于耦合凝聚的二次修改的結(jié)構(gòu)拓?fù)渲胤治?/H1>

發(fā)布時(shí)間：2018-10-10 13:38

【摘要】：研究了連續(xù)兩次修改的結(jié)構(gòu)動(dòng)力學(xué)拓?fù)渲胤治鰡?wèn)題�；谖覀兲岢龅鸟詈夏鄯椒�,獨(dú)立和耦合質(zhì)量正交化處理措施,再結(jié)合瑞利-里茲分析法,形成了適用于兩次修改的增加自由度的結(jié)構(gòu)拓?fù)浯笮薷牡目焖賱?dòng)力學(xué)重分析方法。該方法減少了兩次直接分析所需要的大量計(jì)算量,且操作簡(jiǎn)單,易于實(shí)現(xiàn)。數(shù)值算例結(jié)果表明,對(duì)于這類涉及兩次修改的拓?fù)浯笮薷闹胤治鰡?wèn)題,所提的方法是十分有效的。
[Abstract]:The topological reanalysis of structural dynamics with two successive modifications is studied. Based on the coupling condensation method, the independent and coupling mass orthogonalization measures, and the Rayleigh-Ritz analysis method, a fast dynamic reanalysis method for the structural topology modification with two degrees of freedom is developed. This method reduces the amount of computation required for two direct analysis, and is easy to implement. The numerical results show that the proposed method is very effective for this kind of reanalysis problem involving two modifications.
【作者單位】： 長(zhǎng)沙理工大學(xué)汽車與機(jī)械工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51305048) 湖南省高等學(xué)校科學(xué)研究一般項(xiàng)目(11C0045)資助~~
【分類號(hào)】：O342
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本文編號(hào)：2261988

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