论文部分内容阅读
由于可折展机构在空间任务中的展开需要,其运动学分析和驱动设计至关重要。根据空间多模块可展开机构中单个模块的周向周期性及多模块连接的非完全周期性特点,首先基于复数法和机构单元的拆分思想进行了单个模块的运动学建模,同时进行了满足曲面拟合条件的多模块展开机构的几何建模,并进行了多模块可展开机构的运动学分析,得到多模块联动过程中运动部件的位置与模块间偏角的关系曲线,随着滑块位移的增大,外层模块与内层模块的偏角增大,最大值为1.22°。基于可展开机构的运动学分析,得到不同驱动方式下滑块和铰链在机构展开过程中的受力变化曲线,进行展开机构的驱动分析及低质量和高可靠性的驱动设计,为展开机构的顺利展开提供保障。
Due to the expanding needs of space agencies in space missions, their kinematics analysis and drive design are crucial. According to the cyclical periodicity of individual modules and the incomplete periodicity of multi-module connections in space-extendable multi-module mechanism, the kinematics modeling of a single module is firstly carried out based on the complex method and the idea of mechanism unit split. At the same time, The geometric modeling of the multi-module deployment mechanism that meets the surface fitting conditions and the kinematics analysis of the multi-module deployable mechanism are obtained. The relationship curves between the position of the moving components and the declination angle between the modules are obtained. As the displacement of the block increases, the declination of the outer module and the inner module increases, with a maximum value of 1.22 °. Based on the kinematics analysis of deployable mechanisms, the force curves of sliders and hinges under different driving modes during the mechanism deployment are obtained, the drive mechanism of deployment mechanism and the drive design of low quality and reliability are obtained. Smoothly provide protection.