| 空间机械臂集中式锁解机构的设计与研究 |
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| 引用本文： | 吴炳晖,邓宗全,陶建国,吴湘.空间机械臂集中式锁解机构的设计与研究[J].南京理工大学学报(自然科学版),2008,32(1):40-45. |
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| 作者姓名： | 吴炳晖 邓宗全 陶建国 吴湘 |
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| 作者单位： | 哈尔滨工业大学机电工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 2007CAST-HIT空间机械科学与技术联合实验室资助项目
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高等学校学科创新引智计划项目
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教育部长江学者和创新团队发展计划 |
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| 摘 要： | 根据空间机械臂锁紧与展开的工作要求,提出一种空间机械臂锁解机构.为有效利用卫星表面有限的工作空间和降低锁解机构的质量,采用集中式锁解方案,即利用一根曲轴同时带动多个曲柄滑块机构运动,实现机构的解锁过程.建立基于Pro/E的锁解机构三维模型,对锁解机构的关键部件进行了结构设计,并利用有限元分析软件ANSYS完成了曲轴的模态分析.对曲轴合理地安排支撑位置,使其固有频率显著提高,适应恶劣的发射工况,满足设计要求.
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| 关 键 词： | 曲轴 曲柄滑块机构 锁解机构 模态分析 |
| 文章编号： | 1005-9830（2008）01-0040-06 |
| 收稿时间： | 2007-03-19 |
| 修稿时间： | 2007-10-12 |
Design and Research of Centralized Lock-unlock Mechanism for Space-arm |
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| WU Bing-hui,DENG Zong-quan,TAO Jian-guo,WU Xiang.Design and Research of Centralized Lock-unlock Mechanism for Space-arm[J].Journal of Nanjing University of Science and Technology(Nature Science),2008,32(1):40-45. |
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| Authors: | WU Bing-hui DENG Zong-quan TAO Jian-guo WU Xiang |
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| Abstract: | According to the locking and unlocking requirements of space-arm, a lock-unlock mechanism for space-arm is proposed. A centralized lock-unlock plan is adopted to utilize the limited working space on the satellite effectively and to lower the mass of the lock-unlock mechanism. Several slider-crank mechanisms are driven by one crankshaft to realize the unlocking process simultaneously. A three-dimensional model of the lock-unlock mechanism is built up with the software Pro/E, and a structure design of key parts in the crank-slider mechanism is presented. A model analysis of the crankshaft is accomplished with ANSYS. The modal analysis reveals that the proper supports of the crankshaft enhance its inherent frequency to meet the severe launching condition. |
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| Keywords: | crankshafts slider-crank mechanism lock-unlock mechanism model analysis |
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