| 细长柔韧压杆弹性失稳后挠曲线形状的计算机仿真 |
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| 引用本文： | 潘文波,李银山,李彤,李欣业.细长柔韧压杆弹性失稳后挠曲线形状的计算机仿真[J].力学与实践,2012,34(1):48-51. |
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| 作者姓名： | 潘文波 李银山 李彤 李欣业 |
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| 作者单位： | 1. 河北工业大学 力学系, 天津 300130;
2. 华东理工大学 机械与动力工程学院, 上海 200237 |
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| 摘 要： | 采用Maple编程对细长柔韧压杆弹性失稳后挠曲线形状进行了计算机仿真,进行了细长柔韧压杆弹性失稳后最大挠度和挠曲线封闭两种情况下的挠曲线形状仿真和详细的解答.分析计算了失稳后屈曲的力学特征,给出了解析表达式;分析计算了失稳后屈曲的平衡状态曲线的几何特征,绘出了计算机仿真曲线.结果表明:失稳后最大挠度和挠曲线封闭是属于两个完全不同的屈曲状态.
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| 关 键 词： | 细长柔性杆 后屈曲 最大挠度 曲线封闭 Maple |
| 收稿时间： | 2011-03-28; |
COMPUTER SIMULATION OF DEFLECTION CURVE SHAPE FOR THE SLENDER, FLEXIBLE, COMPRESSED BAR AFTER BUCKLING |
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| PAN Wenbo LI Yinshan,LI Tong LI Xinye.COMPUTER SIMULATION OF DEFLECTION CURVE SHAPE FOR THE SLENDER, FLEXIBLE, COMPRESSED BAR AFTER BUCKLING[J].Mechanics and Engineering,2012,34(1):48-51. |
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| Authors: | PAN Wenbo LI Yinshan LI Tong LI Xinye |
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| Institution: | 1. Department of Mechanics, Hebei University of Technology, Tianjin 300130, China;
2. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A Maple code is developed for the slender,flexible,compressed post-buckling bar.Its deformation curve shape is numerically simulated.Simulations and detailed solutions are given for two cases—the maximum deflection and the closing deflection curve after buckling.Mechanical character of instability after buckling is analyzed and computed.Analysis expression is given;the geometric features of the curve in the equilibrium case after buckling is analyzed and computed.The results indicate that the maximum deflection after buckling and the closing deflection curve are two completely different buckling states. |
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| Keywords: | slender flexible bar post-buckling maximum flexibility curve closing Maple |
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