| 刚体一柔性梁及末端质量系统的动力学分析 |
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| 引用本文： | 方建士,章定国. 刚体一柔性梁及末端质量系统的动力学分析[J]. 南京工程学院学报(自然科学版), 2008, 6(3): 23-28 |
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| 作者姓名： | 方建士 章定国 |
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| 作者单位： | [1]南京工程学院材料工程学院,江苏南京211167 [2]南京理工大学理学院,江苏南京210094 |
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| 基金项目： | 南京工程学院科研基金项目（KXJ08102）;国家自然科学基金项目（10772085）;江苏省自然科学基金项目（BK2007205）;南京理工大学青年学者基金项目（NJUST200504） |
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| 摘 要： | 研究刚体一柔性梁带末端质量系统作大范围旋转运动时的动力学问题，采用子系统法建立考虑“动力刚化”效应的系统刚柔耦合动力学方程，并采用假设模态描述变形，将偏微分方程转化为常微分方程进行求解，文中给出了算例，比较刚体一柔性梁带末端质量系统与不带末端质量系统的动力学响应的差异.
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| 关 键 词： | 柔性梁 末端质量 子系统法 动力刚化 假设模态法 |
Dynamic Analysis of Flexible Hub-beams and Tip-mass System |
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| Affiliation: | FANG Jian-shi,ZHANG Ding-guo(1. School of Materials Engineering, Nanjing Institute of Technology, Nanjing 211167, China; 2. School of Sciences, Nanjing University of Science and Technology, Nanjing 210094, China) |
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| Abstract: | This paper deals with dynamics produced when flexible hub-beam with tip-mass system undergoing large overall motions. Equation of rigid-flexible coupling dynamics with dynamic stiffening effects was established by employing subsystem method. Besides, approach of assumed modes was applied to describe deformation so as to transform partial differential equations to ordinary ones in a bid to solve the problem. And numerical examples were presented to compare the differences between flexible hub-beam with tip-mass system and that without tin-mass system |
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| Keywords: | flexible beams tip-mass subsystem method dynamic stiffening approach of assumed modes |
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