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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2006.2
- 수록면
- 149 - 156 (8page)
이용수
초록· 키워드
오류제보하기
A boundary-based design sensitivity analysis(DSA) technique is proposed for addressing shape optimization issues in the elastostatics problems. Sensitivity formula is derived based on the continuum formulation in a boundary integral form, which consists of the boundary solutions and shape variation vectors. Though the boundary element method(BEM) has been mainly used to obtain the boundary solution, the FEM is used in this paper because this is much more popular, and has greatly improved meshing and computing power recently. The advantage of the boundary DSA is that the shape variation vectors, which are also known as design velocity fields, are needed only on the boundary. Then, the step for determining the design velocity field over the whole domain, which was necessary in the domain-based DSA, is eliminated, making the process easy to implement and efficient. Problem of fillet design is chosen to illustrate the efficiency of the proposed method. Accuracy of the sensitivity is good with this method even by employing the free mesh for the FE analysis.
목차
Abstract
1. 서론
2. 형상설계민감도 정식화
3. 설계속도장의 계산
4. 수치 예제
5. 결론
참고문헌
참고문헌 (19)
참고문헌 신청
Haftka, R. T. and Grandhi, R. V., 1986, “Structural shape optimization - a survey,” Computer Methods in Applied Mechanics and Engineering, Vol. 57, pp. 91∼106.
Kwak, B. M., 1994, “A Review on Shape Optimal Design and Sensitivity Analysis,” Journal of Structural Mechanics and Earthquake Engineering, JSCE, Vol. 10, pp. 1595∼1745.
Zolesio, J.P., 1981, “The Material Derivative (or Speed) Method for Shape Optimization,” in Haug EJ and Cea J (eds.), Optimization of Distributed Parameters Structures, Sijthoff-Noordhoff, Alphen aan den Rijn, The Netherlands, pp. 1152∼1194.
Rousselet, B. and Haug E. J., 1981, “Design Sensitivity Analysis of Shape Variation,” in Haug EJ and Cea J, (eds.), Optimization of Distributed Parameter Structures, Sijthoff-Noordhoff, Alphen aan den Rijn, The Netherlands, pp. 1397∼1442.
Choi, K. K. and Haug, E. J., 1983, “Shape Design Sensitivity Analysis of Elastic Structures,” Journal of Structural Mechanics, Vol. 11, No. 2, pp. 231∼269.
Kwak, B. M., 1994, “A Review on Shape Optimal Design and Sensitivity Analysis,” Journal of Structural Mechanics and Earthquake Engineering, JSCE, Vol. 10, pp. 1595∼1745.
Zolesio, J.P., 1981, “The Material Derivative (or Speed) Method for Shape Optimization,” in Haug EJ and Cea J (eds.), Optimization of Distributed Parameters Structures, Sijthoff-Noordhoff, Alphen aan den Rijn, The Netherlands, pp. 1152∼1194.
Rousselet, B. and Haug E. J., 1981, “Design Sensitivity Analysis of Shape Variation,” in Haug EJ and Cea J, (eds.), Optimization of Distributed Parameter Structures, Sijthoff-Noordhoff, Alphen aan den Rijn, The Netherlands, pp. 1397∼1442.
Choi, K. K. and Haug, E. J., 1983, “Shape Design Sensitivity Analysis of Elastic Structures,” Journal of Structural Mechanics, Vol. 11, No. 2, pp. 231∼269.
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