MATLAB在动力方程求解中的应用  

Application of MATLAB in the solution of dynamic equation

作　　者：蔡世东 蔡朝霞[2] 张妮妮[2] 

机构地区：[1]广西平果铝建筑安装有限公司,广西百色531400 [2]广西大学土木建筑工程学院,广西南宁530004

出　　处：《广西工学院学报》2006年第1期74-76,80,共4页Journal of Guangxi University of Technology

摘　　要：针对目前的动力方程求解多采用数值分析法,其软件编程量大、计算机运行效率较低、准确性较差,故运用状态空间法描述受到地震等外力作用结构的动力方程,采用MATLAB中的lsim函数进行仿真分析求解,并给出了算例分析。其分析结果表明采用MATLAB能够更为有效、准确地求解动力方程。At present, the numerical analysis method is mainly used to solve the dynamic equation. Its work on the programming is large, the process of computer is less efficient and the accuracy of results is less precise. The dynamic equation of the structure under external force such as earthquake is described by the state-space method, and simulated dynamically by using lsim function in MATLAB. A practical example is illustrated and shows that the solution of dynamic equation can be effectively and more accurately analyzed by MATLAB.

关 键 词：状态空间法 MATLAB lsim 动力方程求解 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]