公共约束一系可展开天线四棱锥结构构形综合  

Configuration Synthesis of Spatial Rectangular Pyramid Deployable Antenna with Common Constraint of First-Order Screw System

作　　者：王岩[1] 杨慧[2] 刘荣强[3] 

机构地区：[1]中国电子科技集团38所,安徽合肥 [2]安徽大学电气学院,安徽合肥 [3]哈尔滨工业大学机器人技术与系统国家重点实验室,黑龙江哈尔滨

出　　处：《天线学报》2017年第2期23-32,共10页Journal of Antennas

基　　金：国家自然科学基金(51605001);高等学校学科创新引智计划资助项目(B07018)。

摘　　要：过约束可展开单元的构型综合需要配置各个运动轴线间的相对位姿,采用可展开单元拓扑结构分析和设计的三步法,并不足以综合出含过约束的可展开单元。在可展开单元拓扑结构描述的基础上,基于螺旋理论开展对过约束可展开单元构型综合方法的研究,分析了可展开四棱锥单元可能的过约束情况,并给出其旋量表示。基于该方法,对可收拢到平面状态的四棱锥可展机构公共约束为螺旋一系的情况进行了系统的综合,进而提出一系列的四棱锥过约束可展开单元。通过ADAMS动力学仿真验证了这些可展开单元按照指定自由度进行折展运动的可行性。Structural synthesis of the overconstrained deployable unit needs to be allocated relative position and orientation of each kinematic axes, and three-step method of topological structural analysis and design for the deployable unit cannot synthesize the overconstrained deployable units. Based on the topology structural description of the deployable units and screw theory, structural synthesis method of the overconstrained deployable unit is investigated. Based on this method, the rectangular pyramid deployable units which can be folded to plane are synthesized systemically and get a series of rectangular pyramid overconstrained deployable units. Feasibility of folding and deploying motion under a certain degree of freedom for these deployable units is verified by dynamical simulation using ADAMS.

关 键 词：阵面天线 可展开四棱锥单元 构型综合 旋量理论 螺旋一系 

分 类 号：G6[文化科学—教育学]