Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Exploration of static and free vibration resistance topologically optimal beam structure shapes using density design variables.

재료밀도 설계변수를 이용한 정적 및 자유진동 저항 위상최적 보의 형상 탐색에 관한 연구

  • Lee, Dongkyu (Department of Architectural Engineering, Sejong University) ;
  • Shin, Soo Mi (Research Institute of Industrial Technology, Pusan National University)
  • 이동규 (세종대학교 건축공학과) ;
  • 신수미 (부산대학교 생산기술연구소)
  • Received : 2024.02.06
  • Accepted : 2024.02.22
  • Published : 2024.03.15
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Abstract

This study numerically compares optimum solutions generated by element- and node-wise topology optimization designs for free vibration structures, where element-and node-wise denote the use of element and nodal densities as design parameters, respectively. For static problems optimal solution comparisons of the two types for topology optimization designs have already been introduced by the author and many other researchers, and the static structural design is very common. In dynamic topology optimization problems the objective is in general related to maximum Eigenfrequency optimization subject to a given material limit since structures with a high fundamental frequency tend to be reasonable stiff for static loads. Numerical applications topologically maximizing the first natural Eigenfrequency verify the difference of solutions between element-and node-wise topology optimum designs.

Keywords

Acknowledgement

이 논문은 2022년도 정부(과학기술정보통신부)의 제원으로 한국연구재단(NRF-2022R1A2 C1003776)에 의해 수행되었습니다.

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