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http://dx.doi.org/10.3795/KSME-A.2006.30.5.512

Structural Layout Optimization Strategy Considering Assemblage  

Choi Guk-Jin (서울대학교 멀티스케일 설계 연구단)
Kim Myung-Jin (서울대학교 멀티스케일 설계 연구단)
Kim Yoon-Young (서울대학교 멀티스케일 설계 연구단)
Jang Gang-Won (군산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.30, no.5, 2006 , pp. 512-519 More about this Journal
Abstract
In the ground-structure-based topology optimization, beam elements are regarded to be rigidly connected to each other, and joints are assumed to have infinite stiffness. Thus the optimized topology of a structure is obtained according to the assumption of no joint effect, and the resulting structure should be manufactured in one piece if the joint effect is to be excluded as much as possible. The underlying problems are that 1) the performance of the structure might be seriously decreased if the members of the structure are connected through welding or bolting, not manufactured in one piece, and 2) the topology of the structure will be changed if the joint effect is taken into account. In the paper, the assemblage issue is considered on topology optimization, and a new formulation based on the joint stiffness-varied ground beam structure is developed. Joints of a beam structure are modeled by elastic spring elements whose stiffnesses are controlled by design variables during the optimization.
Keywords
Topology Optimization; Assemblage; Ground Structure; Joint Effect;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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