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| 基于精细积分法的伸展悬臂结构动态特征的计算 | |
| 引用本文： | 邓子辰,郑焕军,赵玉立,钟万勰.基于精细积分法的伸展悬臂结构动态特征的计算[J].宇航学报,2001,22(6):110-113. |
| 作者姓名： | 邓子辰 郑焕军 赵玉立 钟万勰 |
| 作者单位： | 1. 西北工业大学15系;大连理工大学 2. 西北工业大学15系, 3. 大连理工大学 |
| 基金项目： | 国家自然科学基金,霍英东青年教师基金,航空科学基金,陕西省自然科学基金及大连理工大学工业装备结构分析国家重点实验室开放基金资助项目. |
| 摘 要： | 本文针对时变结构，建立了一套高精度计算方法，其舍弃了传统的差分形式，具有计算精度高及数值稳定性好等特点，进而将上述方法应用于一种典型结构－伸展悬臂梁，给出了悬臂结构在不同伸展规律下体现出来的动态特征。计算结果表明，精细积分法能有效地解决时变结构问题，并具有很高的计算精度。本文工作为柔性多体动力学的深入研究提供了一条有效的计算途径。 |
| 关 键 词： | 精细积分法 时变结构 伸展悬臂结构 动态特性 柔性结构 飞行器 机器人 |
| 文章编号： | 1000-1328(2001)06-0110-04 |
| 修稿时间： | 2000年10月26 |
ON COMPUTATION OF DYNAMIC PROPERTIES FOR DEPLOYING CANTILEVER BEAM BASED ON PRECISION INTEGRATION METHOD |
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| Deng Zichen , Zheng Huanjun Zhao Yuli Zhong Wanxie.ON COMPUTATION OF DYNAMIC PROPERTIES FOR DEPLOYING CANTILEVER BEAM BASED ON PRECISION INTEGRATION METHOD[J].Journal of Astronautics,2001,22(6):110-113. | |
| Authors: | Deng Zichen Zheng Huanjun Zhao Yuli Zhong Wanxie |
| Institution: | Deng Zichen 1,2 Zheng Huanjun 1 Zhao Yuli 1 Zhong Wanxie 2 |
| Abstract: | For the time variable structure,firstly a new kind of precision computational method is established in this paper,which abandons the traditional differential form,and has the characteristics of high computation precision and numerical computation stability.Then the above method is applied to a kind of typical structure deploying cantilever beam.Based on dynamic equation of the system,the above problem is transferred to Hamilton system by introducing the dual vector.Under the Symplectic form,the dynamic properties of deploying cantilever beam under the various deploying laws are studied.The computation results show that the precision computation method can solve the time variable problem effectively,and also has very high precision.The work of this paper will provide an effective computation way for the deep studies of the flexible multi body dynamics. |
| Keywords: | Precision integration method Time variable structure Deploying cantilever beam |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |