摘要
提出了一种非比例结构阻尼系统的振动控制方法.把模态阻尼矩阵分为对角阻尼矩阵和对角元素为零的非对角阻尼矩阵,将非对角阻尼矩阵视为小量,用摄动方法求解这个受控系统,可得到非比例阻尼系统的近似解析解,实现对非比例阻尼系统的振动控制.数值模拟说明此方法有较高的精度,可在土木工程高层结构的振动分析中应用.
A vibration control method for the non-proportional structure damping system was presented. Resolving a modal damping matrix into a diagonal matrix and a off-diagonal matrix,in which the diagonal elements were equal to zero and the off-diagonal elements were seen as small value, we got the approximate real solutions of non-proportionally damped systems based on the perturbation technique. The vibration systems with non-proportional structure damping could be controlled. Numerical simulations have shown that this method has a high accuracy. This method can be used to analyze vibrations in high-rise structures of the civil engineering.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第10期49-52,共4页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(10672053)
关键词
振动控制
非比例阻尼
高层结构
摄动方法
vibration control
non-proportional damping
high-rise structure
perturbation technique
