Design and Dynamic Analysis of Space Deployable Mechanism
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摘要: 随着航天事业的发展,越来越多的宇航工程中会应用一些大型的在轨机构,以满足不同的任务需求,本文设计了一种可应用于航天器太阳翼的圆形空间展开机构。主要包括同步机构的设计、自锁铰链的设计以及驱动机构的设计,最后基于Adams以及RecurDyn两种多体动力学仿真软件分别对本文所设计的驱动机构和四单元扇形空间展开机构进行了动力学仿真,结果表明本文所设计的空间展开机构可实现多级展开,并具有展开的可靠性和可控性。Abstract: With the development of the aerospace industry, more and more large-scale orbital mechanisms will be applied in aerospace engineering to meet different mission requirements. A circular space deployable mechanism for applying the spacecraft solar array is designed is this paper. It mainly includes the design of synchronization mechanism, self-locking hinges and drive mechanism. Finally, based on the dynamics of multi-body system software, Adams and RecurDyn, the driving mechanism and the four-unit fan-shaped space deployable mechanism are respectively powered. The simulation results show that the present space deployable mechanism can realize the multi-level expansion and has the reliability and controllability of deployment.
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Key words:
- solar array /
- structural design /
- deployable mechanism /
- dynamics simulation
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表 1 主要运动副定义
Body1 Body2 运动副类型 ground 杆B5 固定副1 构件22(B1) 构件32(B1) 转动副1 构件21(B2) 构件31(B2) 转动副2 构件21(B3) 构件31(B3) 转动副3 构件21(B4) 构件31(B4) 转动副4 构件22(B5) 构件32(B5) 转动副5 杆B1 杆B2 转动副6 杆B2 杆B3 转动副7 杆B3 杆B4 转动副8 杆B4 杆B5 转动副9 ground 滑轮5(模拟电机) 转动副10 表 2 主要接触定义
Body1 Body2 构件22(B1) 构件32(B1) 构件32(B1) 构件42(B1) 构件31(B2) 构件41(B2) 构件21(B3) 构件31(B3) 构件21(B3) 构件41(B3) 构件31(B4) 构件41(B4) 构件22(B1) 构件32(B1) 构件22(B1) 构件42(B1) 构件21(B2) 构件31(B2) 构件21(B2) 构件41(B2) 构件31(B3) 构件41(B3) 构件21(B4) 构件31(B4) 构件21(B4) 构件41(B4) 构件22(B5) 构件42(B5) 表 3 刚柔接触
Body1 Body2 杆件C1 柔性薄膜1 杆件C2 柔性薄膜2 杆件C3 柔性薄膜3 杆件C4 柔性薄膜4 杆件C2 柔性薄膜1 杆件C3 柔性薄膜2 杆件C4 柔性薄膜3 杆件C5 柔性薄膜4 -
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