curved-beam element

基本解釋

A nonlinear curved-beam finite element is developed for three-dimensional space systems by using the principle of potential energy and polynomial functions.
利用勢(shì)能原理和插值函數(shù)推導(dǎo)了一種拱結(jié)構(gòu)空間幾何非線性分析的曲梁?jiǎn)卧?/li>
Based on the results reported herein, one may conclude that the proposed curved element may be used for the analysis of three-dimensional curved beam structures.
基于所給出的結(jié)果，可望該有限元模型可以作為分析三維空間曲梁結(jié)構(gòu)的有效工具。
From the variation principle, an analytical solution of the tangential stiffness matrices with nonlinear effects geometrically, for two-nodal two-dimension curved beam element, has been derived.
利用變分原理，推導(dǎo)了兩節(jié)點(diǎn)二維曲梁?jiǎn)卧獛缀畏蔷€性的單元切線剛度矩陣。

曲梁?jiǎn)卧?p>Secondly, to include the warping effect the curved beam element with eight degrees of freedom is utilized. The element stiffness matrix, element mass matrix and seismic mass matrix in three directions for both girder and pier elements have been derived.
首先利用計(jì)入翹曲影響的每結(jié)點(diǎn)八自由度的曲梁?jiǎn)卧?推導(dǎo)出橋墩單元的剛度矩陣、質(zhì)量矩陣和三個(gè)方向地震質(zhì)量矩陣。