서지주요정보
축대칭 유한 요소 해석에서 단위체 격자 재구성법과 퍼지 로직을 이용한 전방투사법 = Forward projection using modular remeshing and fuzzy logic in axisymmetric finite element simulation
서명 / 저자 축대칭 유한 요소 해석에서 단위체 격자 재구성법과 퍼지 로직을 이용한 전방투사법 = Forward projection using modular remeshing and fuzzy logic in axisymmetric finite element simulation / 정낙면.
저자명 정낙면 ; Jung, Nak-Myeon
발행사항 [대전 : 한국과학기술원, 1992].
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소장정보

등록번호

8002826

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 92025

SMS전송

도서상태

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초록정보

In the present work forward projection is proposed as a new approach to determine the preform shape in rib-web type forging. In the forward projection technique an optimal billet is determined by applying some mathematical relationship between geometrical trials in the initial billet shape and the final products. In forward projection a volume difference between the desired product shape and the final computed shape obtained by the rigid-plastic finite element method is used as a measure of incomplete filling of working material in the die. At first linear inter-/extrapolation is employed to find a proper trial shape for the initial billet and the method is successfully applied to some cases of different aspect ratios of the initial billet. However, when the initial guesses are not successfully near the optimal value linear inter-/extrapolation does not render complete die filling. For more general application, a fuzzy system is used in the forward project technique in order to determine the initial billet shape for rib-web type forging. In the forging simulation, the rigid-plastic finite element method is used in connection with the modular remeshing technique. It has been thus shown that the fuzzy system is more reliable for the preform design in the rib-web type forging process.

서지기타정보

서지기타정보
청구기호 {MPE 92025
형태사항 v, 77 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Nak-Myeon Jung
지도교수의 한글표기 : 양동열
지도교수의 영문표기 : Dong-Yol Yang
학위논문 학위논문(석사) - 한국과학기술원 : 정밀공학과,
서지주기 참고문헌 : p. 37-40
주제 Finite element method.
Forging.
Dies (Metal-work)
유한 요소법. --과학기술용어시소러스
퍼지 집합. --과학기술용어시소러스
격자 생성. --과학기술용어시소러스
단조. --과학기술용어시소러스
강소성. --과학기술용어시소러스
Fuzzy algorithms.
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