剪刀机构环形阵列可展结构的运动学与动力学研究

通过分析剪刀单元之间几何参数的关系，得到单元尺寸和单元数量与展开和收拢半径之间的约束条件;针对可展结构的组成特点，提出将单元机构法与运动影响系数法相结合，建立可展结构的运动学分析方法;将运动影响系数法与虚功原理相结合，形成了可展结构的动力学分析方法。通过算例证实了所建立的运动学和动力学分析方法的有效性。

Kinematics and Dynamics Analysis of Ring Array Deployable Structures Based on SLE

Firstly, by analysing the geometric parameter relationship of SLE, the relationship among the element size, element number and the radius of the ring deployable structures was obtained in deployed and folded configurations. Secondly, according to the characteristics of the ring array deployable structure, a method was adopted, which was the combination of unit mechanism method and influence coefficient method, and the kinematics analysis method of the structure was established. Thirdly, the influence coefficient method and the principle of virtual work were combined to form the dynamatics analysis of the structure.At last, the effectiveness of the kinamatics and dynamics methods was confirmed by an example.