东华大学学报（英文版）2009，Vol.26Issue(3)：313-318,6.
Dynamic Analysis of Kineto-Elastic Beam System with Second-order Effect
Dynamic Analysis of Kineto-Elastic Beam System with Second-order Effect
LU Nian-li 1LUO Bing 1XIA Yong-jun1
作者信息
- 1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
- 折叠
摘要
Abstract
Dynamic equations of motional flexible beam elements were derived considering second-order effect. Non-linear finite element method and three-node Euler-Bernoulli beam elements were used. Because accuracy is higher in non-linear structural analysis, three-node beam elements are used to deduce shape functions and stiffness matrices in dynamic equations of flexible elements. Static condensation method was used to obtain the finial dynamic equations of three-node beam elements. According to geometrical relations of nodal displacements in concomitant and global coordinate system, dynamic equations of elements can be transformed to global coordinate system by concomitant coordinate method in order to build the global dynamic equations. Analyzed amplitude condition of flexible arm support of a port crane, the results show that second-order effect should be considered in kinetic-elastic analysis for heavy load machinery of big flexibility.关键词
kineto-elastic beam system/second-order effect/three-node Euler-Bernoulli beam element/concomitant coordinate systemKey words
kineto-elastic beam system/second-order effect/three-node Euler-Bernoulli beam element/concomitant coordinate system分类
机械制造引用本文复制引用
LU Nian-li,LUO Bing,XIA Yong-jun..Dynamic Analysis of Kineto-Elastic Beam System with Second-order Effect[J].东华大学学报（英文版）,2009,26(3):313-318,6.
