Topology synthesis of large‐displacement compliant mechanisms

TLDR

The study uses topology optimization to synthesize large‑displacement compliant mechanisms, proposing an objective function and formulation for path‑generating mechanisms. Responses are modeled with a total Lagrangian finite element formulation, sensitivities computed via the adjoint method, and the optimization solved using the method of moving asymptotes, with additional procedures to mitigate numerical issues. © 2001 John Wiley & Sons, Ltd.

Abstract

Abstract This paper describes the use of topology optimization as a synthesis tool for the design of large‐displacement compliant mechanisms. An objective function for the synthesis of large‐displacement mechanisms is proposed together with a formulation for synthesis of path‐generating compliant mechanisms. The responses of the compliant mechanisms are modelled using a total Lagrangian finite element formulation, the sensitivity analysis is performed using the adjoint method and the optimization problem is solved using the method of moving asymptotes. Procedures to circumvent some numerical problems are discussed. Copyright © 2001 John Wiley & Sons, Ltd.