| THEORETICAL ANALYSIS AND EXPERIMETNAL VERIFICATION FOR PAINLEV碋 PARADOX |
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| 引用本文： | 赵振,刘才山,陈滨.THEORETICAL ANALYSIS AND EXPERIMETNAL VERIFICATION FOR PAINLEV碋 PARADOX[J].力学学报,2013,45(1):37-44. |
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| 作者姓名： | 赵振 刘才山 陈滨 |
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| 作者单位： | 1. 北京航空航天大学航空科学与工程学院, 北京100191;
2. 北京大学工学院, 北京100871 |
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| 基金项目： | 国家自然科学基金(11172019,11132001);“凡舟”青年科学基金(20110501)资助项目)~~ |
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| 摘 要： | 含摩擦的多体系统可能存在Painlevé 疑难奇异性-- 多体系统的后续运动可能存在无解(非协调状态)或者多解(不确定状态). 实际系统总要运动下去, 而对应于非协调奇异性状态的多体系统将经历怎样的运动值得探讨. 从计算、实验和理论证明3 个角度研究Painlevé 疑难问题, 验证和证明了多体系统处于非协调状态时其后续运动的切向冲击特征, 并揭示了切向冲击运动的共同规律.
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| 关 键 词： | Painlev疑难 多体系统 切向冲击 |
| 收稿时间： | 2012-11-09 |
| 修稿时间： | 2012-11-21 |
THEORETICAL ANALYSIS AND EXPERIMETNAL VERIFICATION FOR PAINLEV PARADOX |
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| Zhao Zhen,Liu Caishan Chen Bin.THEORETICAL ANALYSIS AND EXPERIMETNAL VERIFICATION FOR PAINLEV PARADOX[J].chinese journal of theoretical and applied mechanics,2013,45(1):37-44. |
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| Authors: | Zhao Zhen Liu Caishan Chen Bin |
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| Institution: | 1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;
2. College of Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Painlevé paradox may appear in multi-rigid-body systems subjected to Coulomb’ friction. No solution or multiple solutions make the systems inconsistent or indeterminate. It is worth investigating how the subsequent motions of the systems in inconsistent states evolve since the actual systems will always move on. The theoretical analysis and the experimental verification are carried out to confirm the tangential impact in the inconsistent case of the systems. The characteristic of the stick motions are confirmed during tangential impact. |
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| Keywords: | Painlevé paradox|multi-body system|tangential impact |
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