| 弹性地基梁单元的二次开发与应用 |
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| 引用本文： | 杨钊,姜安龙,刘成.弹性地基梁单元的二次开发与应用[J].南昌航空工业学院学报,2010,24(1):86-90. |
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| 作者姓名： | 杨钊 姜安龙 刘成 |
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| 作者单位： | 同济大学;南昌航空大学; |
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| 基金项目： | 江西省教育厅科研项目“大直径隧道衬砌结构理论分析及其工程应用研究”(GJJ09493) |
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| 摘 要： | 基于Euler梁理论和最小势能原理推导了带轴力项的Euler梁单元的刚度矩阵。结合弹性地基梁理论与坐标转换矩阵得到了在整体坐标系下的弹性地基梁的刚度矩阵。据此编制了ABAQUS用户单元子程序,进行了算例验算,结果表明:所编写的弹性地基梁单元精度高,可以用于工程实际计算。
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| 关 键 词： | 弹性地基梁 单元子程序 刚度矩阵 坐标转换 |
Secondary Development and Application of Elastic Foundation Beam Element |
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| YANG Zhao,JIANG An-long,LIU Chen.Secondary Development and Application of Elastic Foundation Beam Element[J].Journal of Nanchang Institute of Aeronautical Technology(Natural Science Edition),2010,24(1):86-90. |
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| Authors: | YANG Zhao JIANG An-long LIU Chen |
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| Institution: | 1.Tongji University/a>;Shanghai 20092/a>;2.Nanchang Hangkong University/a>;Nanchang/a>;Jiangxi 330034 China |
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| Abstract: | Based on Euler beam theory and principle of minimum potential energy,the stiffness matrix of Euler beam with the axial force term is derived.Combined with the theory of elastic foundation beam and coordinate translation matrix,the stiffness matrix in the global coordinate system is obtained.According to this method,a user-defined element subroutine is compiled in ABAQUS.Through using this code analysis as an example,the result indicates that the accuracy of the code is high enough to satisfy the engineering... |
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| Keywords: | elastic foundation beam element subroutine stiff matrix coordinate translation |
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