摘要
提出了先按振型特征和振型贡献率挑选主导模态 ,再用连续的或开关的滑动状态技术进行减震控制的分析方法 ,并应用于斜拉桥结构的减震控制中。在工程中可实施的仿真控制精度和控制范围内实现了对大跨桥梁结构减震控制的仿真分析。大跨度斜拉桥的算例说明了这一技术是可行、有效的。
In this paper, it is put forward to choose main modes based on their properties and their contributing ratios, then the control for reducing seismic is proceeded in the subspace of main modes by continuous and on off sliding mode technology. The simulating control analysis is made for a cable stayed bridge in the possible simulating precision and scope of control force, and it is shown that the technology is feasible and effective.
出处
《桥梁建设》
EI
CSCD
北大核心
2001年第6期1-3,17,共4页
Bridge Construction
基金
国家自然科学基金资助项目 ( 5 96 780 2 7)
关键词
斜拉桥
模态分析
仿真分析
滑动状态
减震控制
cable stayed bridge
vibration attenuation
mode analysis
simulation analysis
