Optimization Algorithm for Geometric Nonlinear Analysis of the Rigid Frame
An optimization algorithm is presented for geometric nonlinear analysis of the rigid frame. The principal character of the optimization algorithm is that the equilibrium state with large deformation is chosen as the study object. The endpoint coordinates are given by means of coordinate recursion formulae. The objective function is defined, and the dynamic design variable is unknown endpoint coordinates of slight segments. The optimization problem is established for large deformation analysis of the rigid frame, and the optimization program is programmed. Typical examples are calculated by optimization algorithm, and the results are in very good agreement with those by existing methods, which provides a new and effective idea for geometric nonlinear analysis of the rigid frame.
Rigid frame Geometric nonlinear analysis Optimization algorithm Finite element method Dynamic design variable
Zhang Xu Li Wei
School of Mechanical and Electronic Engineering Tianjin Polytechnic University Tianjin, China Department of Energy and Mechanical Engineering Tianjin Institute of Urban Construct Tianjin, China
国际会议
长沙
英文
1966-1969
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）