非线性基准建筑物振动的主动控制

周星德; 陈道政

非线性基准建筑物振动的主动控制

周星德¹,
陈道政²

1.
河海大学工程力学系,南京 210098;2.合肥工业大学土木建筑学院, 合肥 230009

基金项目: 江苏省第二批“六大人才高峰”资助项目;江苏省自然科学基金资助项目(BK2003083)

详细信息

作者简介:
周星德(1964- ),男,合肥人,副教授,博士(联系人:Tel:+86-25-83786006;E-mail:ZXDLKC@163.com).

中图分类号: TU311.3；TP273.1
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- 被引次数: 0
出版历程
- 收稿日期: 2005-08-16
- 修回日期: 2007-01-23
- 刊出日期: 2007-04-15

Active Vibration Control of Nonlinear Benchmark Buildings

ZHOU Xing-de¹,
CHEN Dao-zheng²

1.
Department of Engineering Mechanics, Hohai University, Nanjing 210098, P. R. China;

摘要

摘要: 非线性基准建筑物的振动方程属于非仿射系统，目前的非线性模型降阶方法不能采用．而直接采用非线性控制策略所设计的控制器阶数较高，难以用于实际场合．为此，开发了一种适合于非线性建筑结构的新的振动主动控制方法，该方法思路是识别线性化的结构模型，进而根据力作用原理把控制力施加到所识别的结构模型上．该方法所建模型可以通过经验Grammian矩阵进行平衡降阶，所以具有较好的实用性．最后给出了3层基准结构的计算实例，其结果表明所提出的方法对土木工程结构是可行的．
- 非线性 /
- 建筑物 /
- 模型识别 /
- 线性化 /
- 经验Grammian矩阵
Abstract: The present nonlinear model reduction methods unfit for nonlinear benchmark buildings as their vibration equations belong to non affine system. Meanwhile, the controllers designed directly by nonlinear control strategy have a high order and are the difficult to be applied actually. Therefore, a new active vibration control way which fits nonlinear buildings was proposed. The idea of the proposed way was based on model identification and structural model linearization, exerting the control force to the built model according to the force action principle. The proposed way has a better practicability as the built model can be reduced by balance reduction method based on the empirical Grammian matrix. At last, a 3 storey benchmark structure was presented. Simulation results illustrate that the proposed method is viable for civil engineering structures.
- nonlinear /
- buildings /
- model identification /
- linear /
- empirical Grammian matrix

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参考文献(8)

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