Structural Engineering and Mechanics

  • 제7권4호
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  • Pages.401-412
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  • 1999
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Optimization of thin shell structures subjected to thermal loading

  • Li, Qing (Department of Aeronautical Engineering, Building J07, Engineering Faculty, University of Sydney) ;
  • Steven, Grant P. (Department of Aeronautical Engineering, Building J07, Engineering Faculty, University of Sydney) ;
  • Querin, O.M. (Department of Aeronautical Engineering, Building J07, Engineering Faculty, University of Sydney) ;
  • Xie, Y.M. (Faculty of Engineering and Science, Victoria University of Technology)
  • 발행 : 1999.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

The purpose of this paper is to show how the Evolutionary Structural Optimization (ESO) algorithm developed by Xie and Steven can be extended to optimal design problems of thin shells subjected to thermal loading. This extension simply incorporates an evolutionary iterative process of thermoelastic thin shell finite element analysis. During the evolution process, lowly stressed material is gradually eliminated from the structure. This paper presents a number of examples to demonstrate the capabilities of the ESO algorithm for solving topology optimization and thickness distribution problems of thermoelastic thin shells.

키워드

참고문헌

  1. Chu, D.N., Xie, Y.M., Hira, A. and Steven, G.P. (1996), "Evolutionary structural optimization for problems with stiffness constraints" , Finite Elements in Analysis and Design. 21, 239-251. https://doi.org/10.1016/0168-874X(95)00043-S
  2. Farshad, M. (1992), Design and Analysis of Shell Structures, Kluwer Academic Publisher.
  3. Li, Q., Steven, G.P., Querin, O.M. and Xie, Y.M. (1997), "Optimal shape design for steady heat conduction by the evolutionary procedure" , ASME Proceedings of the 32nd National Heat Transfer Conference, 2, HID-Vol. 340, Baltimore, Maryland, U.S.A., 159-164, August 8-12.
  4. Manickarajah, D., Xie, Y.M. and Steven, G.P. (1995), "A simple method for the optimization of columns, frames and plates against buckling" , Structural Stability and Design, Kitipomchai, S. et al. (eds), A. A. Balkema Publishers, Rotterdam, 175-180, October.
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  7. Querin, O.M., Steven, G.P. and Xie, Y.M. (1996), EVOLVE User Guide, Department of Aeronautical Engineering, University of Sydney, Australia.
  8. Querin, O.M. (1997), "Evolutionary Structural Optimization: Stress Based Formulation and Implementation", PhD Thesis, Department of Aeronautical Engineering, The University of Sydney.
  9. Ramm, E. and Mehlhorn, G. (1991), "On shape finding methods and ultimate load analyses of reinforced concrete shells" , Engineering Structures, 13, 178-198. https://doi.org/10.1016/0141-0296(91)90050-M
  10. Rao, N.V.R. and Hinton, E. (1993), "Structural optimization of variable-thickness plates and free-form shell structures" , Structural Engineering Review, 5, 1-21.
  11. Tenek, L.H. and Hagiwara, I. (1994), "Optimal rectangular plate and shallow shell topologies using thickness distribution or homogenization", Computer Methods in Applied Mechanics and Engineering, 115, 111-124. https://doi.org/10.1016/0045-7825(94)90190-2
  12. Xie, Y.M. and Steven, G.P. (1993), "A simple evolutionary procedure for structural optimization", Computers & Structures, 49(5),885-896. https://doi.org/10.1016/0045-7949(93)90035-C
  13. Xie, Y.M. and Steven, G.P. (1994), "Optimal design of multiple load case structures using an evolutionary procedure" , Engineering Computations, 11, 295-302. https://doi.org/10.1108/02644409410799290
  14. Xie, Y.M. and Steven, G.P. (1996), "Evolutionary structural optimization for dynamic problems", Computers & Structures, 58, 1067-1073. https://doi.org/10.1016/0045-7949(95)00235-9
  15. Xie, Y.M. and Steven, G.P. (1997), Evolutionary Structural Optimization, Springer-Verlag, Berlin.

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  2. Topology optimization of shell structures using adaptive inner-front (AIF) level set method vol.36, pp.1, 2008, https://doi.org/10.1007/s00158-007-0169-4
  3. Structural topology design with multiple thermal criteria vol.17, pp.6, 2000, https://doi.org/10.1108/02644400010340642
  4. The effects of membrane thickness and asymmetry in the topology optimization of stiffeners for thin-shell structures vol.46, pp.7, 2014, https://doi.org/10.1080/0305215X.2013.813023
  5. Displacement minimization of thermoelastic structures by evolutionary thickness design vol.179, pp.3, 1999, https://doi.org/10.1016/s0045-7825(99)00047-x