6533b7d3fe1ef96bd1261324

RESEARCH PRODUCT

On a topology optimization problem governed by two-dimensional Helmholtz equation

Raino A. E. MäkinenJaroslav Haslinger

subject

Computational MathematicsControl and OptimizationLevel setLevel set methodDiscretizationHelmholtz equationApplied MathematicsNumerical analysisTopology optimizationMathematical analysisRelaxation (approximation)ParametrizationMathematics

description

The paper deals with a class of shape/topology optimization problems governed by the Helmholtz equation in 2D. To guarantee the existence of minimizers, the relaxation is necessary. Two numerical methods for solving such problems are proposed and theoretically justified: a direct discretization of the relaxed formulation and a level set parametrization of shapes by means of radial basis functions. Numerical experiments are given.

https://doi.org/10.1007/s10589-015-9746-4