| 柔性梁刚柔耦合碰撞动力学及变形传播研究 |
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| 引用本文： | 段玥晨,章定国.柔性梁刚柔耦合碰撞动力学及变形传播研究[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 段玥晨 章定国 |
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| 作者单位： | 南京理工大学学理学院; |
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| 基金项目： | 国家自然科学基金(1113207,10772085); 江苏省“青蓝工程”; 南京理工大学自主科研专项计划(2011YBXM32)项目资助 |
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| 摘 要： | 运用柔性多体系统刚柔耦合动力学理论,研究了作大范围回转运动柔性梁的碰撞动力学问题.考虑柔性梁的横向变形,以及横向变形引起的纵向缩短项即非线性耦合变形项.采用基于Hertz接触理论及非线性阻尼理论的非线性弹簧阻尼模型来求解碰撞过程中产生的碰撞力,运用第二类拉格朗日方程建立了系统的刚柔耦合碰撞动力学方程.编制仿真软件进行动力学仿真计算,得到了碰撞力和系统动力学响应,对比分析了不同动力学模型对系统动力学响应的影响.同时研究了碰撞导致的柔性梁横向变形传播的波动特性.
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| 关 键 词： | 柔性梁 刚柔耦合 碰撞 弹簧阻尼模型 变形传播 |
RESEARCH ON THE RIGID-FLEXIBLE COUPLING DYNAMICS AND DEFORMATION PROPAGATION OF A ROTATING FLEXIBLE BEAM WITH IMPACT |
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| Yuechen Duan Dingguo Zhang.RESEARCH ON THE RIGID-FLEXIBLE COUPLING DYNAMICS AND DEFORMATION PROPAGATION OF A ROTATING FLEXIBLE BEAM WITH IMPACT[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Yuechen Duan Dingguo Zhang |
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| Institution: | Yuechen Duan Dingguo Zhang(School of Sciences,Nanjing University of Science and Technology,Nanjing,210094) |
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| Abstract: | The rigid-flexible coupling dynamics of a radially rotating flexible beam with impact is investigated in this paper.The transversal deformation and nonlinear coupled deformation,which means the longitudinal shortening caused by transversal deformation,are considered here.The impact force is calculated based on Hertz contact theory and nonlinear damping theory.The system's rigid-flexible coupling dynamic equations with impact are obtained by using the Lagrangian equations.The dynamic simulation is given to v... |
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| Keywords: | flexible beam rigid-flexible coupling impact spring-damper model deformation propagation |
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