지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.21 No.3
- 발행연도
- 2016.1
- 수록면
- 605 - 628 (24page)
이용수
초록· 키워드
오류제보하기
The energy absorption characteristics of diamond core sandwich cylindrical columns under axial crushing process depend greatly on the amount of material which participates in the plastic deformation. Both the single-objective and multi-objective optimizations are performed for columns under axial crushing load with core thickness and helix pitch of the honeycomb core as design variables. Models are optimized by multi-objective particle swarm optimization (MOPSO) algorithm to achieve maximum specific energy absorption (SEA) capacity and minimum peak crushing force (PCF). Results show that optimization improves the energy absorption characteristics with constrained and unconstrained peak crashing load. Also, it is concluded that the aluminum tube has a better energy absorption capability rather than steel tube at a certain peak crushing force. The results justify that the interaction effects between the honeycomb and column walls greatly improve the energy absorption efficiency. A ranking technique for order preference (TOPSIS) is then used to sort the non-dominated solutions by the preference of decision makers. That is, a multi-criteria decision which consists of MOPSO and TOPSIS is presented to find out a compromise solution for decision makers. Furthermore, local and global sensitivity analyses are performed to assess the effect of design variable values on the SEA and PCF functions in design domain. Based on the sensitivity analysis results, it is concluded that for both models, the helix pitch of the honeycomb core has greater effect on the sensitivity of SEA, while, the core thickness has greater effect on the sensitivity of PCF.
목차
등록된 정보가 없습니다.
참고문헌 (46)
참고문헌 신청
Abramowicz, W. / 1984 / Dynamic axial crushing of square tubes / Int. J. Impact Eng. 2(2):179~208
Abramowicz, W. / 1984 / Dynamic axial crushing of circular tubes / Int. J. Impact Eng. 2(3):263~281
Acar, E. / 2011 / Multi-objective crashworthiness optimization of tapered thin-walled tubes with axisymmetric indentations / Thin-Wall. Struct. 49(1):94~105
Athan, T.W. / 1999 / A note on weighted criteria methods for compromise solutions in multi-objective optimization / Eng. Optim. 27(2):155~176
Avalle, M. / 2002 / Design optimization by response surface methodology: application to crashworthiness design of vehicle structures / Struct. Multidiscip. Optim. 24(4):325~332
Abramowicz, W. / 1984 / Dynamic axial crushing of circular tubes / Int. J. Impact Eng. 2(3):263~281
Acar, E. / 2011 / Multi-objective crashworthiness optimization of tapered thin-walled tubes with axisymmetric indentations / Thin-Wall. Struct. 49(1):94~105
Athan, T.W. / 1999 / A note on weighted criteria methods for compromise solutions in multi-objective optimization / Eng. Optim. 27(2):155~176
Avalle, M. / 2002 / Design optimization by response surface methodology: application to crashworthiness design of vehicle structures / Struct. Multidiscip. Optim. 24(4):325~332
이 논문의 저자 정보
최근 본 자료
댓글(0)
0