Enumeration of optimal pin-jointed bistable compliant mechanisms with non-crossing members
Enumeration of optimal pin-jointed bistable compliant mechanisms with non-crossing members
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DOI：
10.1007/s00158-008-0258-z
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发表时间：
2009-02
影响因子：
3.9
通讯作者：
M. Ohsaki;N. Katoh;T. Kinoshita;Shin-ichi Tanigawa;D. Avis;I. Streinu
中科院分区：
文献类型：
--
作者：
M. Ohsaki;N. Katoh;T. Kinoshita;Shin-ichi Tanigawa;D. Avis;I. Streinu
提出了一种用于枚举销连接双稳态顺从机构的优化方法。在第一阶段，包含给定节点集和一些预定义构件的非交叉构件的静定桁架被视为最小刚性框架或拉曼框架，并通过图枚举算法进行不重复的枚举。在第二阶段，在机械约束下优化节点位置和横截面积，其中广泛利用突跳行为来产生销接双稳态柔顺机构。在数值示例中，生成了许多双稳态柔顺机制以显示所提出方法的有效性。
An optimization approach is presented for enumerating pin-jointed bistable compliant mechanisms. In the first stage, the statically determinate trusses with non-crossing members containing a given set of nodes and some pre-defined members are regarded as minimally rigid framework or a Laman framework, and are enumerated without repetitions by the graph enumeration algorithm. In the second stage, the nodal locations and the cross-sectional areas are optimized under mechanical constraints, where the snapthrough behavior is extensively utilized to produce a pin-jointed bistable compliant mechanism. In the numerical examples, many bistable compliant mechanisms are generated to show the effectiveness of the proposed method.