Reliability of space flexible mechanisms
-
摘要: 根据空间柔性机构运动可靠性的特点,利用浮动坐标系和模态柔性建立了柔性机构动力学微分方程, 并给出其迭代算法的数值求解方法.研究了柔性机构运动可靠性分析仿真方法,包括一次二阶矩法和高效响应面法,特别是针对空间柔性机构运动可靠性的特点,分析了以上方法的适用性.最后,应用ADAMS软件中柔性多体动力学建模、分析和仿真功能,并结合自主开发软件工具序列响应面法S RSM(Sequence Response Surfance Method),成功地对某空间展开机构的运动可靠性进行了分析仿真.Abstract: The dynamics differential equations of flexible kinetic mechanisms were established on the basis of using the floating coordinate system and mode flexibility according to the kinetic reliability characters of the flexible bodies on space applications. The integral and iteration algorithm was applied in the solving of dynamics equations. The reliability analysis and simulation methods of kinetic mechanisms were studied, which included the first-order second-moment method and the hi-efficient response surface method. Especially, the applicability of this method on the space flexible mechanism kinetic reliability was analyzed. The kinetic reliability analysis and simulation were successfully provided to the deployable space mechanisms on the basis of flexible multi-body dynamic modeling, using ADAMS and self-developed software S RSM (sequence response surface method).
-
Key words:
- mechanisms /
- space applications /
- flexible structures /
- reliability
-
[1] obert L Fusaro. Space mechanisms technology workshop proceedings[R] NASA:CP1999209200,1999 [2] asayoshi Misawa. Deployment reliability prediction for large satellite antennas driven by spring mechanism[J] Journal of Spacecraft and Rockets, 1994,31(5):878～882 [3] 嘉振，蒋丽忠.动力刚化与多体系统刚－柔耦合动力学[J] 算力学学报，1999，16(3):297～298Hong Jiazhen, Jiang Lizhong. Dynamic stiffening and multibody dynamics with coupled rigid and deformation motions[J] Chinese Journal of Computational Mechanics，1999，16(3):297～298(in Chinese) [4] 佑方.柔性多体系统动力学[M] 京：高等教育出版社，1996.114～116Lu Youfang. Dynamics of flexible multibody System[M] eijing:Publishing House of Higher Education，1996.114～116(in Chinese) [5] 军，邢俊文，覃文洁.ADAMS实例教程[M] 北京：北京理工大学出版社，2002.191～193Li Jun, Xing Junwen, Qin Wenjie. ADAMS example tutorial[M] Beijing:Beijing Institute of Technology Press，2002.191～193(in Chinese) [6] 广燕，张建国.改进的重要度抽样法在机构可靠性中的应用[J] 京航空航天大学学报，2003，29(8):697Zhao Guangyan, Zhang Jianguo. Application of an improved importance sampling method in mechanisms reliability[J] Journal of Beijing University of Aeronautics and Astronautics，2003，29(8):697(in Chinese) [7] 建国，刘英卫，郑东青.弹性连杆机构可靠性分析方法[J] 械科学与技术，2001，20(2):247～248Zhang Jianguo, Liu Yingwei, Zheng Dongqing. The reliability analysis of elastic linkage[J] Mechanical Science and Technology，2001，20(2):247～248(in Chinese) [8] iu Yingwei, Fred Moses. A sequential response surface method and its application in the reliability analysis of aircraft structural systems [J] Structural Safety,1994,16:39～46 [9] 嘉振.计算多体系统动力学[M] 京：高等教育出版社，1999.392～402Hong Jiazhen. Computational dynamics of multibody systems[M] eijing:Publishing House of Higher Education，1999.392～402(in Chinese) -
点击查看大图
计量
- 文章访问数: 2670
- HTML全文浏览量: 160
- PDF下载量: 986
- 被引次数: 0
下载:
