| 杆系结构多荷载识别的三角级数分析法 |
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| 引用本文： | 范存新,陈家瑾,张毅,唐和生.杆系结构多荷载识别的三角级数分析法[J].上海力学,2008,29(3). |
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| 作者姓名： | 范存新 陈家瑾 张毅 唐和生 |
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| 作者单位： | [1]苏州科技学院工程力学系江苏省结构工程重点实验室,苏州215011 [2]同济大学结构工程与防灾研究所,上海200092 |
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| 基金项目： | 国家自然科学基金，江苏省高校自然科学基金 |
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| 摘 要： | 本文提供了一种识别杆系结构受到多荷载的作用的三角级数识别方法.将集中荷载展成三角级数且借助结构力学中的位移法建立了单根基本梁(梁单元)的位移方程,利用位移测量值反演所受到的集中荷载大小和位置.算例表明本文所用级数收敛性较好,可获得稳定的收敛值.
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| 关 键 词： | 荷载识别 杆系结构 三角级数 |
Analysis Method of Trigonometric Series for Multiloads Identification on Member Structure |
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| FAN Cun-xin CHEN Jia-jin ZHANG Yi Dept.of Engineering Mechanics,Suzhou University of Science & Technology,Suzhou ,China TANG He-sen Research Institute of Structural Engineering , Disaster Reduction,Tongji University,Shanghai ,China.Analysis Method of Trigonometric Series for Multiloads Identification on Member Structure[J].Chinese Quarterly Mechanics,2008,29(3). |
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| Authors: | FAN Cun-xin CHEN Jia-jin ZHANG Yi Deptof Engineering Mechanics Suzhou University of Science & Technology Suzhou China TANG He-sen Research Institute of Structural Engineering Disaster Reduction Tongji University Shanghai China |
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| Institution: | FAN Cun-xin CHEN Jia-jin ZHANG Yi Dept.of Engineering Mechanics,Suzhou University of Science & Technology,Suzhou 215011,China TANG He-sen Research Institute of Structural Engineering , Disaster Reduction,Tongji University,Shanghai 200092,China |
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| Abstract: | An analysis method of trigonometric series for multi loads identification on member structure was presented.The concentrated load was carried out into trigonometric series.Based on the displace- ment method,the displacement equation of beam element was established.Based on the displacement of loaded structure,the size and the location of load on the structure were back-calculated iteratively.It is clear that the convergence property of trigonometric series is good through the example of the calculation. |
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| Keywords: | loads identification member structure trigonometric series |
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