| 蒋丽忠,洪嘉振.作大范围运动弹性梁刚—柔耦合动力学建模[J].计算力学学报,2002,19(1):12~15 |
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| 作大范围运动弹性梁刚—柔耦合动力学建模 |
| Coupling dynamical modeling theory of elastic beam-inlarge overall motions |
| 修订日期：1999-12-10 |
| DOI：10.7511/jslx20021004 |
| 中文关键词: 弹性梁,大范围运动,刚-柔耦合动力学,振动频率,振幅 |
| 英文关键词:elastic beams,large overall motions,coupling dynamics,frequencies,amplitude |
| 基金项目:国家自然科学基金资助 ( 19830 2 40 )，湖南省自然科学基金资助 ( OOJJY2 0 85 ) |
| 蒋丽忠 洪嘉振 |
| 中南大学铁道校区土木建筑工程学院，上海交通大学土木工程学院，湖南大学土木工程学院 湖南长沙，410075，上海200030，长沙410082 |
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| 中文摘要: |
| 利用弹性梁的变形理论和 Hamilton力学原理对作大范围运动弹性梁的刚 -柔耦合动力学建模理论进行了研究。分析了大范围运动对弹性梁的横向振动和纵向振动的影响 ,得到了大范围运动与弹性梁的中线耦合变形之间的耦合作用对该系统动力学性质有显著的影响 ,从而提出了作大范围运动弹性梁的刚柔耦合动力学模型 |
| 英文摘要: |
| The paper studies the coupled dynamical modeling theory of elastic beams in large overall motions based on the deformation theory of elastic beams and Hamilton's principle. The effect of large overall motion on the transverse and longitude vibration is analyzed and the striking effect of the coupled between the coupled deformation of midlines of elastic beams and large overall motion on the dynamic character of the system is obtained. Consequently, the coupling dynamical model of elastic beams in large overall motions is put forward. |
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