A Topology Optimization Formulation Applied to Highly Flexible Structures

A Topology Optimization Formulation Applied to Highly Flexible Structures

Lima, Cícero Ribeiro de; Teves, André da Costa; Silva, Emílio Carlos Nelli

Abstract:

Highly flexible structures (springs) have been found in many precise devices, such as small actuators of optical disc drive and mobile cameras. A good configuration design is crucial for correct operation of these devices. In this case, optimization techniques can be applied to design of their flexible structures, aiming to reduce development time and costs. Remarkably, the design of these structures turns out to be a challenge in topology optimization. Thus, in this work, a formulation for designing highly flexible structures by using topology optimization is investigated. The topology optimization problem is defined as the minimization of the material volume subject to a mean compliance and a perimeter constraint, combined with a projection technique. The material model is based on the traditional SIMP approach and the optimization problem is implemented by using COMSOL software and solved by using MMA algorithm. A well-known plane string case has been carried out to evaluate the potential of the proposed topology optimization formulation.

Highly flexible structures (springs) have been found in many precise devices, such as small actuators of optical disc drive and mobile cameras. A good configuration design is crucial for correct operation of these devices. In this case, optimization techniques can be applied to design of their flexible structures, aiming to reduce development time and costs. Remarkably, the design of these structures turns out to be a challenge in topology optimization. Thus, in this work, a formulation for designing highly flexible structures by using topology optimization is investigated. The topology optimization problem is defined as the minimization of the material volume subject to a mean compliance and a perimeter constraint, combined with a projection technique. The material model is based on the traditional SIMP approach and the optimization problem is implemented by using COMSOL software and solved by using MMA algorithm. A well-known plane string case has been carried out to evaluate the potential of the proposed topology optimization formulation.

Palavras-chave:

DOI:

Como citar:

Lima, Cícero Ribeiro de; Teves, André da Costa; Silva, Emílio Carlos Nelli; "A Topology Optimization Formulation Applied to Highly Flexible Structures", p-90-90. In: Proceedings of the 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials [=Blucher Material Science Proceedings, v.1, n.1]. São Paulo: Blucher, 2014.
ISSN 23589337, DOI