No abstract

Abstract-In order to obtain better mechanical properties by exploiting the advantages of different materials, a topological design meth od of compliant mechanisms multiple materials was proposed. The multiple materials interpolation model for topological design of compliant mechanisms was established using the generalized Solid Isotropic Material with Penalization method. The objective function was developed maximizing the output displacement, and the structural volume was restricted. The adjoint approach is applied to perform the sensitivity analysis. The improved filter technique was applied to modify the sensitivities in order to avoid the avoid the numerical instability phenomenon. The method of moving asymptotes was used to solve the topological optimization problem. The numerical examples were given to illustrate that the proposed method is correct and effective. The result shows that multiple materials compliant mechanisms has better mechanical performance than single-phase material compliant mechanisms.

No abstract