근사모델을 이용한 신뢰성기반 최적 구조 설계
Reliability-based Structural Design Optimization using Approximation Models
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초록
The design variables and material properties as well as the external loads concerned with structural engineering are used to be deterministic in optimization process. These values, however, have variability from expected performance. Therefore, deterministic optimum designs that are obtained without taking these uncertainty into account could lead to unreliable designs, which necessitates the Reliability-Based Design Optimization(RBDO). RBDO involves an evaluation of probabilistic constraints which constitutes another optimization procedure. So, an expensive computational cost is required. Therefore, how to decrease the computational cost has been an important challenge in the RBDO research field. Approximation models, response surface model and Kriging model, are employed to improve an efficiency of the RBDO.
Abstract
The design variables and material properties as well as the external loads concerned with structural engineering are used to be deterministic in optimization process. These values, however, have variability from expected performance. Therefore, deterministic optimum designs that are obtained without taking these uncertainty into account could lead to unreliable designs, which necessitates the Reliability-Based Design Optimization(RBDO). RBDO involves an evaluation of probabilistic constraints which constitutes another optimization procedure. So, an expensive computational cost is required. Therefore, how to decrease the computational cost has been an important challenge in the RBDO research field. Approximation models, response surface model and Kriging model, are employed to improve an efficiency of the RBDO.
참고문헌 (10)
- Byeng D. Youn, "Enriched Performance Measure Approach for Reliability-Based Design Optimization", AIAA Journal, 43(4), pp.874~884 (2004)
- 양영순, "확률론적 구조설계 최적화 기법에 대한 비교연구", 한국전산구조공학회논문집, 14(2), pp.213~224 (2001)
- 양영순, "구조 신뢰성 공학" (1999), 서울대학교 출판부
- 박성현, "현대실험계획법" (2000), 민영사
- 김봉재, "Advanced single-loop methods in reliability-based design optimization", 박사, 조선해양공학, pp.2005
- R. H. Myers, "Response Surface Methodology : Process and Product Optimization Using Designed Experiments" (1995), John wiley & Sons
- D.C. Montgomery, "Design and Analysis of Experiments" (1997), John wiley & Sons
- Satty, T. L., "The Analytic Hierarchy Process" (1980), McGraw-Hill
- T. W. Simpson, "Comparison of response surface and kriging models for multidisciplinary design optimization", AIAA, 1, pp.381~391 (1998)
- Kyung K. Choi, "A New Study On Reliability Based Design Optimization", Journal of MECHANICAL DESIGN, 121, pp.557~564 (1999)