Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Topology Optimization Using the Element Connectivity Parameterization Method in Three Dimensional Design Domain

3차원 설계 영역에서의 요소 연결 매개법을 이용한 위상 최적 설계

  • 윤길호 (서울대학교 정밀기계설계공동연구소) ;
  • 김윤영 (서울대학교 기계항공공학부) ;
  • 정영수 (서울대학교 대학원 기계항공공학부)
  • Published : 2005.07.01
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Abstract

The objective of this paper is to present the element connectivity parameterization (ECP) fur three dimensional problems. In the ECP method, a continuum structure is viewed as discretized finite elements connected by zero-length elastic links whose stiffness values control the degree of inter-element connectivity. The ECP method can effectively avoid the formation of the low-density unstable elements. These elements appear when the standard element density method is used for geometrical nonlinear problems. In this paper, this ECP method developed fur two-dimensional problems is expanded to the design of three-dimensional geometrical nonlinear structures. Among others, the automatic procedure converting standard finite element models to the models suitable for the ECP approach is developed and applied for optimization problems defined on general three-dimensional design domains.

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References

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