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Optimal Design of Dielectric shape and Topology using Smooth Boundary Topology Optimization Method  

Jeung, Gi-Woo (경북대학교 전기공학과)
Choi, Nak-Sun (경북대학교 전기공학과)
Kim, Nam-Kyung (경북대학교 전기공학과)
Kim, Dong-Hun (경북대학교 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.10, 2009 , pp. 1936-1941 More about this Journal
Abstract
This paper deals with a new methodology for topology optimization in which the topology of the design domain may change during the shape optimization process. To achieve this, the concept of the topological gradient is introduced to compute the sensitivity of an objective function when a small hole is drilled in the domain. Based on shape and topological sensitivity values, the shape and topology of the design domain may be simultaneously changed during design iterations if necessary. To verify the advantages and also to facilitate understanding of the method itself, two electrostatic design problems have been tested by using 2D finite element analysis: the first is the inverse problem of a simple dielectric model and the second is the rotor design of a MEMS actuator.
Keywords
Electrostatic analysis; Inverse problem; Shape optimization; Topology optimization;
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