空间伸展臂折展单元展开运动特性分析
发布时间：2019-03-24 21:23
【摘要】：基于对国内外空间伸展臂机构研究状况分析,提出一种四棱柱型剪叉式空间伸展臂。在分析伸展臂工作原理的基础上,确定折展单元(剪叉单元)的构型特征,并基于螺旋理论求解伸展臂折展单元运动度,验证四棱柱型剪叉式空间伸展臂的运动单一性和折展稳定性。据此,分析空间伸展臂折展单元的几何特性,获得折展单元轴向展开运动规律线图,并利用所研制的原理装置在低重力模拟环境下完成伸展臂展开性能和重复展开精度测试,结果表明四棱柱型剪叉式空间伸展臂满足空间折展机构的功能需求。
[Abstract]:Based on the analysis of the research status of spatial extension arm mechanism at home and abroad, a four-prism shear-fork space extension arm is proposed. On the basis of analyzing the working principle of the extension arm, the configuration characteristics of the folding element (shear element) are determined, and the motion degree of the folding unit is solved based on the spiral theory. The kinematic singleness and folding stability of the four-prism shear-type spatial extension arm are verified. On the basis of this, the geometric characteristics of the folding unit of the spatial extension arm are analyzed, and the diagram of the axial unfolding motion of the folding unit is obtained, and the performance of the extended arm and the accuracy of the repeated deployment are tested in the low gravity simulation environment by using the developed principle device. The results show that the four-prism shear spatial extension arm meets the functional requirements of the space folding mechanism.
【作者单位】： 浙江工业职业技术学院机械工程学院;浙江理工大学浙江省机电产品可靠性技术研究重点实验室;
【基金】：浙江省自然科学基金项目(LZ12E05004) 2011浙江省重点科技创新团队(2010R50005)
【分类号】：TH112
，
本文编号：2446693
[Abstract]:Based on the analysis of the research status of spatial extension arm mechanism at home and abroad, a four-prism shear-fork space extension arm is proposed. On the basis of analyzing the working principle of the extension arm, the configuration characteristics of the folding element (shear element) are determined, and the motion degree of the folding unit is solved based on the spiral theory. The kinematic singleness and folding stability of the four-prism shear-type spatial extension arm are verified. On the basis of this, the geometric characteristics of the folding unit of the spatial extension arm are analyzed, and the diagram of the axial unfolding motion of the folding unit is obtained, and the performance of the extended arm and the accuracy of the repeated deployment are tested in the low gravity simulation environment by using the developed principle device. The results show that the four-prism shear spatial extension arm meets the functional requirements of the space folding mechanism.
【作者单位】： 浙江工业职业技术学院机械工程学院;浙江理工大学浙江省机电产品可靠性技术研究重点实验室;
【基金】：浙江省自然科学基金项目(LZ12E05004) 2011浙江省重点科技创新团队(2010R50005)
【分类号】：TH112
，
本文编号：2446693
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