Topology optimization for the microstructure design of dielectric materials
Recent studies on the design of artificial materials have generated great interest in their application to improve the performance of electromagnetic devices such as electrostatic actuators, waveguides, antennas, and so on.To efficiently design such artificial materials so that desirable properties are maximized, a systematic design method is required.This paper discuss a topology optimization method for the design of microstructures made from dielectric materials.Various research on inverse homogenization problems has described composite material microstructure designs used to develop materials that have extreme properties such as a negative thermal expansion coefficient 1, or a negative Poissons ratio 2, and materials with a prescribed value of a constitutive tensor such as Youngs modulus 3, magnetic permeability 4, dielectric permittivity 5, and so on.In 5, a design methodology for the microstructure of dielectric materials that demonstrate a prescribed effective permittivity was reported, where a genetic algorithm (GA) was used in the optimization procedure.In this work, a gradient-based topology optimization method is applied, instead of meta-heuristic approaches such as GAs, to the microstructure design of dielectric materials, and the design variables are updated based on sensitivities efficiently obtained using the adjoint variable method.
Masaki Otomori Jacob Andkj(ae)r Ole Sigmund Kazuhiro Izui Shinji Nishiwaki
Dept.of Mechanical Engineering and Science,Kyoto University,Kyoto,Japan Dept.of Mechanical Engineering,Technical University of Denmark,Lyngby
国际会议
黄山
英文
1-1
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）