Study on no . 38 welded turnout analyzed by generalized variational principle 用广义变分原理分析38号无缝道岔的研究
Calculating theory of railway welded turnout based on generalized variational principle 基于广义变分原理的铁路无缝道岔计算理论
Family of generalized variational principles for nonlinear elasticity with finite displacement 大位移非线性弹性理论的广义变分原理
Application of generalized variational principles to welded turnout structures of high - speed railway 广义变分原理在高速铁路无缝道岔结构分析中的应用
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,导出了弹塑性有限变形率形式的广义变分原理
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 在对转换层厚板进行局部有限元分析时,本文提出了基于mindlin中厚板弯曲理论的修正的二类变量广义变分原理和替代剪应变场插值方法的九节点厚薄板通用的板弯曲单元,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 但是这种全域的小波有限元方法仅在具有规则形状的区域内求解时才能显示出它的优越性;同时,通过它对结构中的梁、板、壳的求解过程可以看出,都是要通过各自的广义变分原理刁
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 首先构造了便于边界条件处理的插值小波基,应用乘积型二元插值小波基来构造梁、板、壳的广义变量场函数,通过二类、三类变量广义变分原理建立了多变量小波有限元模型。