计算结构动力响应的状态方程直接积分法  

Direct integration of state equation method for dynamic response of structure

作　　者：张森文[1] 曹开彬[2] 

机构地区：[1]暨南大学应用力学研究所,广州510632 [2]中国计算机报,北京100038

出　　处：《计算力学学报》2000年第1期94-97,118,共5页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金

摘　　要：利用钟万勰等发展的指数矩阵精细算法,提出了状态方程直接积分法。它能适用于确定情形各种激励作用下系统的动力响应分析;与分段等效线性化方法相结合,也可用于某些非线性系统的响应计算。算例表明,状态方程直接法具有精度高、不受时间步长的严格限制等特点。Based on the precise integration method, the Direct Integration of State Equation Method (DISEM) was developed to calculate the dynamic response of the system excited by deterministic forces. It can be used in kinds of systems. Combined with the piecewise linearization, it can be used to compute the response of some nonlinear system. Some numerical examples were given and the results show that the DISEM is in high agreement with the exact solution, and not be restricted with the time step.

关 键 词：振动 动力响应 状态方程 直接积分 结构 

分 类 号：O342[理学—固体力学]