Work

Application of a weighted sensitivity approach for topology optimization analysis of time dependent problems based on the density method

Year: 2021

Type: article

Abstract: In this study, we apply a weighted sensitivity approach to topology optimization analysis based on the density method in dynamic oscillation problems. In our proposed technique, strain energy is employed as the performance function. The self-adjoint relation is derived from the strain energy. However, when using this technique, the properties of the mesh prevent the acquisition of a non-oscillatory density distribution. Employing our proposed weighted sensitivity, however, reduces the numerical oscillation of the sensitivity in the search direction, resulting in a clear density distribution. We present the results of a comparison of the sensitivity and density distributions.

Source: JSIAM Letters

DOI: 10.14495/jsiaml.13.68

Authors: Masayuki Kishida, Takahiko Kurahashi, Joan Baiges

Institutions: Nagaoka University of Technology, Universitat Politècnica de Catalunya

Language: English

Topic: Topology Optimization in Engineering

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: Nagaoka University of Technology, Japan Society for the Promotion of Science

Award: Development of oscillation control bearing based on the unsteady topology optimal design analysis