An optimal design of magnetic actuators using topology optimization and the response surface method

Jeonghoon Yoo, H. J. Soh

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The magnetic actuator is a device that transforms electric energy to mechanical energy. By mechanical energy transformation, some part of the electric energy creates force, and the other part is stored within the ferrous material. An actuator with improved magnetic force can be designed by reducing the stored energy within the ferrous material at the core or the armature. Topology optimization based on the homogenization design method (HDM) is used for the initial design by determining the porous hole size of each element created. The homogenized magnetic permeability is applied in calculation of the magnetic energy stored. The magnetic energy is calculated by finite element analysis and the sensitivity is calculated mathematically by determining the effects of the magnetic energy according to the permeability change at each element. Repeating the process of the porous hole size determination by the sequential linear programming (SLP), eventually leads to a design of an actuator that makes the most improved magnetic force within the limited volume. The initial actuator model derived from topology optimization uses parameter optimization for detail designs. In parameter optimization design, the response surface method (RSM) based on the central composite design is used to obtain a clear final design.

Original languageEnglish
Pages (from-to)1252-1261
Number of pages10
JournalMicrosystem Technologies
Volume11
Issue number12
DOIs
Publication statusPublished - 2005 Nov 1

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Magnetic actuators
Shape optimization
topology
actuators
optimization
Actuators
energy
Size determination
Magnetic permeability
size determination
linear programming
Linear programming
armatures
Optimal design
design optimization
homogenizing
Finite element method
permeability
Composite materials
magnetic permeability

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

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An optimal design of magnetic actuators using topology optimization and the response surface method. / Yoo, Jeonghoon; Soh, H. J.

In: Microsystem Technologies, Vol. 11, No. 12, 01.11.2005, p. 1252-1261.

Research output: Contribution to journalArticle

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