摘要
应用时域自适应精细算法求解自激振动问题,将各物理量在离散时段内展开,可进行自适应递推计算,对非线性计算不做附加假设,避免了非线性迭代。数值分析表明,时域自适应精细算法可有效地用于自激振动问题的求解。
An application of a self-adaptive precise algorithm in time domain is presented in this paper for solving self-excited vibration problems. By expanding variables at discretized time intervals, a recursive and self-adaptive computation can be conducted. There is no requirement of additional assumption and iteration for non-linear analysis. A couple of examples with high computing accuracy are given to show that the algorithm is a useful tool solving self-excited vibration problems.
出处
《工程力学》
EI
CSCD
北大核心
2007年第1期23-26,共4页
Engineering Mechanics
基金
国家自然科学基金项目(10472019
10421002)
973项目(2005CB321704)
教育部骨干教师资助计划(2000-65)
辽宁省中青年学术带头人基金
关键词
自激振动
耦合自激振动
参激振动
精细算法
自适应
self-excited vibration
coupled self-excited vibration
parametric-excitation
precise algorithm
self-adaptive computation
