ON THE DESIGN OF COMPLIANT MECHANISMS USING TOPOLOGY OPTIMIZATION

This paper presents a method for optimal design of compliant mechanism topologies. The method is based on continuum-type topology optimizati on techniques and finds the optimal compliant mechanism topology withi n a given design domain and a given position and direction of input an d output forces. By constraining the allowed displacement at the input port, it is possible to control the maximum stress level in the compl iant mechanism. The ability of the design method to find a mechanism w ith complex output behavior is demonstrated by several examples. Some of the optimal mechanism topologies have been manufactured, both in ma croscale (hand-size) made in Nylon, and in microscale (<.5mm)) made of micromachined glass.