Study on no . 38 welded turnout analyzed by generalized variational principle 用廣義變分原理分析38號(hào)無縫道岔的研究
Calculating theory of railway welded turnout based on generalized variational principle 基于廣義變分原理的鐵路無縫道岔計(jì)算理論
Family of generalized variational principles for nonlinear elasticity with finite displacement 大位移非線性彈性理論的廣義變分原理
Application of generalized variational principles to welded turnout structures of high-speed railway 廣義變分原理在高速鐵路無縫道岔結(jié)構(gòu)分析中的應(yīng)用
Abstract : in this paper, the generalized variational principle of ela stic and plastic problem with finite displacement is derived by means of semi-in verse method 文摘:利用半反推法,導(dǎo)出了彈塑性有限變形率形式的廣義變分原理
Based on the generalized variational principle of the modificatory variables and substituent shearing strain field interpolation of the bending theory of the mindilin plate, this paper brings up the nine-node mixed plate bending element and adopts the sap2000 ? a large-scale finite element analysis programs . by the examples, we find the precision of the method is satisfying 在對(duì)轉(zhuǎn)換層厚板進(jìn)行局部有限元分析時(shí),本文提出了基于mindlin中厚板彎曲理論的修正的二類變量廣義變分原理和替代剪應(yīng)變場插值方法的九節(jié)點(diǎn)厚薄板通用的板彎曲單元,并采用了sap2000有限元程序。
But this universe wavelet fem displays its superiority only in regulation figure fields . through the processing of solving beam, plate and shell in structure must transit generalized variational principle respective, so the commonality is difference . the displacement functions in usually fem are constructed with wavelet functions, then the form functions expression with wavelet functions 但是這種全域的小波有限元方法僅在具有規(guī)則形狀的區(qū)域內(nèi)求解時(shí)才能顯示出它的優(yōu)越性;同時(shí),通過它對(duì)結(jié)構(gòu)中的梁、板、殼的求解過程可以看出,都是要通過各自的廣義變分原理刁
The interpolating wavelet bases are constructed in order to deal with boundary conditions conveniently at first . then the wavelet bases of duality in product form are used to construct the generalized field functions of beam, plate and shell . the model of multivariable wavelet fem is built by hellingger-reissner and hu-washizu generalized variational principle 首先構(gòu)造了便于邊界條件處理的插值小波基,應(yīng)用乘積型二元插值小波基來構(gòu)造梁、板、殼的廣義變量場函數(shù),通過二類、三類變量廣義變分原理建立了多變量小波有限元模型。