International Journal of CAD/CAM

한국CDE학회 (Society for Computational Design and Engineering)
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Reliability-Based Design Optimization using Semi-Numerical Strategies for Structural Engineering Applications

  • Kharmanda, G. (Faculty of Mechanical Engineering, Aleppo University) ;
  • Sharabatey, S. (Faculty of Mechanical Engineering, Aleppo University) ;
  • Ibrahim, H. (Faculty of Mechanical Engineering, Aleppo University) ;
  • Makhloufi, A. (Laboratoire de Mecanique de Rouen, INSA de Rouen, St Etienne du Rouvray) ;
  • Elhami, A. (Laboratoire de Mecanique de Rouen, INSA de Rouen, St Etienne du Rouvray)
  • 발행 : 2010.04.01
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초록

When Deterministic Design Optimization (DDO) methods are used, deterministic optimum designs are frequently pushed to the design constraint boundary, leaving little or no room for tolerances (or uncertainties) in design, manufacture, and operating processes. In the Reliability-Based Design Optimization (RBDO) model for robust system design, the mean values of uncertain system variables are usually used as design variables, and the cost is optimized subject to prescribed probabilistic constraints as defined by a nonlinear mathematical programming problem. Therefore, a RBDO solution that reduces the structural weight in uncritical regions does not only provide an improved design but also a higher level of confidence in the design. In this work, we seek to improve the quality of RBDO processes using efficient optimization techniques with object of improving the resulting objective function and satisfying the required constraints. Our recent RBDO developments show its efficiency and applicability in this context. So we present some recent structural engineering applications demonstrate the efficiency of these developed RBDO methods.

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참고문헌

  1. Chateauneuf, A.; Aoues, Y. (2008): Advances in solution methods for reliability-based design optimization, "Structural Design Optimization Considering Uncertainties", Chapter 9, Book series editor: Dan M. Frangopol, Taylor & Francis.
  2. Ditlevsen, O.; Madsen, H. (1996): Structural Reliability Methods, John Wiley & Sons.
  3. Feng Y. S.; Moses F. (1986): A method of structural optimization based on structural system reliability. J. Struct. Mech. 14, 437-453. https://doi.org/10.1080/03601218608907527
  4. Kharmanda, G.; Mohamed, A.; Lemaire, M. (2002): Efficient reliability-based design optimization using hybrid space with application to finite element analysis, Structural and Multidisciplinary Optimization, 24, 233-245. https://doi.org/10.1007/s00158-002-0233-z
  5. Kharmanda, G.; Olhoff, N.; El-Hami, A. (2004): Optimum safety factor approach for reliability- based design optimization with extension to multiple limit state case, Structural and Multidisciplinary Optimization, Vol 27, 421-434
  6. Kharmanda, G., Altonji, A. and El-Hami, A. (2006): Safest point method for reliability-based design optimization of freely vibrating structures, 1st International Francophone Congress for Advanced Mechanics, IFCAM01, Aleppo, Syria, 02-04 May 2006.
  7. Kharmanda, G.; Olhoff, N. (2007): An extension of optimum safety factor approach to nonlinear reliabilitybased design optimization, Structural and Multidisciplinary Optimization, vol 34, pp 367-380. https://doi.org/10.1007/s00158-007-0107-5
  8. Tu, J.; Choi K.K.; Park, Y.H. A new study on reliabilitybased design optimization, Journal of Mechanical Design, ASME, 121(4), (1999), 557-564. https://doi.org/10.1115/1.2829499
  9. Youn, B. D.; Choi, K. K.; Park, Y. H. (2003): Hybrid analysis method for reliability-based design optimization, Journal of Mechanical Design, ASME, Vol. 125, 221-232. https://doi.org/10.1115/1.1561042
  10. Youn, B D.; Choi, K. K. (2004): Selecting Probabilistic Approaches for Reliability-Based Design Optimization, AIAA Journal, Vol 42, No.1, January, 2004.
  11. Youn, B.D.; Choi, K.K.; Du, L. (2005): Enriched Performance Measure Approach for Reliability-Based Design Optimization, AIAA JOURNAL, vol. 43, No. 4, April 2005.
  12. Yang, R.J.; Chuang C.; Gu, L.; Li, G. (2005): Experience with approximate reliability-based optimization methods II: an exhaust system problem, Structural and Multidisciplinary Optimization, vol 29, 2005, pp 488-497. https://doi.org/10.1007/s00158-004-0494-9