| 筒中筒结构动力特性分析的状态空间法 |
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| 引用本文： | 胡启平,高洪俊,凌明俊.筒中筒结构动力特性分析的状态空间法[J].建筑科学,2007,23(11):1-4. |
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| 作者姓名： | 胡启平 高洪俊 凌明俊 |
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| 作者单位： | 河北工程大学土木工程学院,河北,邯郸,056038;河北工程大学土木工程学院,河北,邯郸,056038;河北工程大学土木工程学院,河北,邯郸,056038 |
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| 基金项目： | 河北省自然科学基金;河北省教育厅自然科学基金 |
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| 摘 要： | 引入建筑结构状态变量的概念,用现代控制理论的状态空间方法,基于并联铁摩辛柯梁模型,建立筒中筒结构动力特性分析的哈密顿体系,用精细积分法求该体系的高精度数值解,给出了一套分析筒中筒结构动力特性的方法。这种方法能求出筒中筒结构各阶自振频率和相应的振型,精度较高,为筒中筒结构的动力计算打下了基础。
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| 关 键 词： | 筒中筒结构 哈密顿对偶体系 状态空间 动力特性 |
| 文章编号： | 1002-8528（2007）11-0001-04 |
| 收稿时间： | 2007-01-24 |
| 修稿时间： | 2007-05-16 |
The State Space Method for Dynamic Characteristics Analysis of Tube-in-tube Structures |
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| HU Qi-ping,GAO Hong-jun,LING Ming-jun.The State Space Method for Dynamic Characteristics Analysis of Tube-in-tube Structures[J].Building Science,2007,23(11):1-4. |
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| Authors: | HU Qi-ping GAO Hong-jun LING Ming-jun |
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| Affiliation: | College of Civil Engineering, Hebei Engineering University, Handan 056038, Hebei, China |
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| Abstract: | Introducing the state vectors concept of high-rise building,using the state space method in the modern control theory,and based on the parallel shear-bending beam model,this paper found the Hamilton dual solution system of dynamic characteristics analysis for the tube-in-tube structure.Then the precise integration method was adopted to realize the high-precision numerical solution of the system.Thus a set of integrated methods is developed to analyze the structure dynamic characteristics,which can determine natural frequencies and relevant vibration modes of the tube-in-tube structure with high precision,so as to lay a foundation for the dynamic computation of the tube-in-tube structure.For its good applicability,the method can be extended to the tube-in-tube structure with variable sections. |
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| Keywords: | tube-in-tube structures Hamilton dual system state space dynamic characteristics |
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