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为了对变胞机构的构态进行分析,提出了变胞机构结构变换的位移子群描述方法.给出了相邻和非相邻构件合并变胞的位移子群表示和计算方法以及变胞变换的位移子群矩阵表示和计算方法.提出了1个8-SSSS空间并联变胞机构,并将该并联变胞机构的结构变换过程采用位移子群和位移子群矩阵方法进行表示和计算,进一步验证了所提方法的正确性和有效性.新方法不但使变胞变换问题转换为位移子群的表示和计算问题,而且使变胞机构结构变换描述方法由拓扑结构拓展到了几何结构.
In order to analyze the configuration of the variable structure, a method to describe the displacement subgroup of the variable structure transformation is proposed, and the displacement subgroup representation and calculation method with the combination of adjacent and non-adjacent components are given. , A displacement subgroup matrix representation and calculation method is proposed.A 8-SSSS parallel shunt mechanism is proposed and the structure transformation process of the parallel shuffling mechanism is expressed and calculated by using displacement subgroup and displacement subgroup matrix method, The correctness and validity of the proposed method are verified.The new method not only transforms the problem of transformation of cells to the representation and calculation of displacement subgroups, but also expands the description of transformation of structure of variable cells from topological structure to geometric structure.