| 杆系结构的弹性冗余度及其特性分析 |
| |
| 引用本文： | 朱红飞,陈务军,董石麟.杆系结构的弹性冗余度及其特性分析[J].上海交通大学学报,2013,47(6):872-877. |
| |
| 作者姓名： | 朱红飞 陈务军 董石麟 |
| |
| 作者单位： | (1. 上海交通大学 空间结构研究中心， 上海 200240； 2. 中国瑞林工程技术有限公司， 南昌 330031) |
| |
| 摘 要： | 摘要：
为区别常规冗余度概念，给出了弹性冗余度定义.鉴于杆系结构的弹性冗余度与几何拓扑及弹性刚度有关，通过对势能方程求解微分，得到结构的平衡方程、物理方程和几何协调方程；将几何协调方程线性化，代入平衡方程和物理方程，得到弹性冗余度的计算公式，并用Matlab编程实现该算法.经典算例揭示了杆系结构的弹性冗余度特性.
关键词：
杆系结构； 冗余度； 弹性冗余度
中图分类号： TU 353
文献标志码： A
|
| 关 键 词： | 杆系结构 冗余度 弹性冗余度 |
| 收稿时间： | 2012-01-23 |
Elastic Redundancy of Pin-jointed Bar Structures and Its Characteristics Analysis |
| |
| ZHU Hong-fei,CHEN Wu-jun,DONG Shi-lin.Elastic Redundancy of Pin-jointed Bar Structures and Its Characteristics Analysis[J].Journal of Shanghai Jiaotong University,2013,47(6):872-877. |
| |
| Authors: | ZHU Hong-fei CHEN Wu-jun DONG Shi-lin |
| |
| Institution: | (1. Space Structure Research Center, Shanghai Jiaotong University, Shanghai 200240, China；2. China Nerin Engineering Co. Ltd.， Nanchang 330031, China) |
| |
| Abstract: | The elastic redundancy is defined first, which is different from the conventional geometrical redundancy. Because the elastic redundancy of the pin jointed bar structures is dependent not only on the elastic stiffness but also on the geometry topology. The governing equations of equilibrium equation, physical equation and geometric equation are formulated from differential of the potential energy equation. After linearizing the geometry equation, and substituting it into the other two equations, the elastic redundancy formula is yielded. The presented algorithm is implemented with matlab. The benchmark examples unveil the characteristics of the elastic redundancy of the pin-jointed bar structures. |
| |
| Keywords: | pin-jointed bar structures redundancy elastic redundancy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《上海交通大学学报》浏览原始摘要信息 |
| 点击此处可从《上海交通大学学报》下载免费的PDF全文 |
