서지주요정보
캐드 기반 범용 최적설계 시스템 개발 및 피로수명을 위한 구조형상최적설계에의 응용 = Development of a CAD-based general purpose optimal design system and its application to structural shape for fatigue life
서명 / 저자 캐드 기반 범용 최적설계 시스템 개발 및 피로수명을 위한 구조형상최적설계에의 응용 = Development of a CAD-based general purpose optimal design system and its application to structural shape for fatigue life / 유용균.
저자명 유용균 ; Yu, Yong-Gyun
발행사항 [대전 : 한국과학기술원, 2003].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8013886

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 03044

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In this thesis, an integrated optimal design software system for structural components has been developed which interfaces existing commercial codes for CAD, CAE and Optimization. Various previously developed software systems for optimal design have been analyzed in terms of modularity and independence of analysis activities, flexibility of optimal design formulation, user convenience and so on. They include specialized optimal design software codes such as iSIGHT and VisualDOC, optimization module imbedded in CAD software developed by CAD developers, and optimal design software systems based on API of commercial CAD software. The advantages of the CAD imbedded optimal design approach and those of specialized optimal design software are taken to develop the system called DS/I-DEAS. The user defines optimal design formulation in the user interface for problem definition in the CAD control stage, where design variables are directly selectable from the CAD model and various properties and performance functions defined. The commercial CAD codes, I-DEAS and Open I-DEAS(API) are used for the development. The interface program also connects external libraries and codes such as DOT for optimization, Grid Control for spreadsheet and PGL for graphing. Windows 2000 and Visual C++ have been utilized. The resulting software is minimally connected to CAD and CAE systems while keeping maximum independence from each other. This assures flexibility and freedom for problem definition. Fatigue life optimization is taken as a nontrivial application area. For stress history and life calculation, ABAQUS and Fe-Safe are used and interfaced. As a specific example, the shape design of a knuckle part of an automobile is performed, where the minimum fatigue life over the material domain in terms of the number of cycles of a curb strike are maximized under the constraint of not exceeding the current mass. The fatigue life has been improved by four times of the initial life. The developed software is illustrated to maintain the advantages of existing optimal design software systems while improving independency and flexibility.

서지기타정보

서지기타정보
청구기호 {MME 03044
형태사항 viii, 90 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yong-Gyun Yu
지도교수의 한글표기 : 곽병만
지도교수의 영문표기 : Byung-Man Kwak
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 88-90
주제 최적설계
소프트웨어
피로 수명
캐드 기반
Optimization
fatigue
cad based
i-deas
open i-deas
QR CODE qr code