| 两结点简支的弹性基础框架的变形分析 |
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| 引用本文： | 李华东,朱锡,梅志远,张颖军. 两结点简支的弹性基础框架的变形分析[J]. 力学与实践, 2011, 33(1): 29-34. DOI: 10.6052/1000-0879-lxysj2010-255 |
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| 作者姓名： | 李华东 朱锡 梅志远 张颖军 |
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| 作者单位： | 1. 海军工程大学船舶与动力学院102教研室;2. ; |
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| 基金项目： | 国家自然科学基金资助项目(50979110) |
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| 摘 要： | 基于初参数法, 研究了均布载荷作用下、两结点简支的弹性基础闭合框架的变形与内力分布规律. 首先给出了两端弹性支撑的有限长弹性基础梁的挠曲线计算式, 根据结构的边界条件和对称特性, 不考虑两结点处的位移边界条件, 取出一个局部结构进行了分析; 进而利用位移和内力的边界条件确定了局部结构的初参数, 并根据结构的对称性得出了整个结构的内力分布; 最后按照整个结构的位移边界条件, 对以上位移计算结果进行修正, 得出了框架实际的挠度解析计算式.
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| 关 键 词： | 弹性基础 均布载荷 有限长 初参数法 简支 |
| 收稿时间： | 2010-06-11 |
DEFORMATION ANALYSIS OF ELASTIC FOUNDATION FRAME WITH TWO SIMPLY SUPPORTED NODES |
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| LI Huadong , ZHU Xi , MEI Zhiyuan , ZHANG Yinjun. DEFORMATION ANALYSIS OF ELASTIC FOUNDATION FRAME WITH TWO SIMPLY SUPPORTED NODES[J]. Mechanics and Engineering, 2011, 33(1): 29-34. DOI: 10.6052/1000-0879-lxysj2010-255 |
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| Authors: | LI Huadong ZHU Xi MEI Zhiyuan ZHANG Yinjun |
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| Affiliation: | LI Huadong~(2)) ZHU Xi MEI Zhiyuan ZHANG Yingjun (College of Naval Architecture and Power,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | Based on the initial parameter method,this paper studies the deformation and stress distributions of elastic foundation frame subjected to uniform pressure and with two nodes simply supported.Firstly,the calculation formula for deflections of a finite-length elastic foundation beam with elastic support at both ends is derived.Based on the boundary conditions and the symmetry of the structure,a local structure is considered without taking account of the displacement boundary conditions at the two simply supp... |
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| Keywords: | elastic foundation uniform pressure initial parameter method simply supported |
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