• Computational Structural Engineering
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• v.9 no.3
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• pp.97-105
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• 1996

An integrated environment for optimum design has been developed using Motif. The integrated environment is composed of the preprocessor, the postprocessor and the optimization part. The preprocessor is part of making a finite element model for optimum structural design and the postprocessor displays results of optimum design and the optimization part is the part which execute optimization. It is designed to reduce user's difficulties in structural optimum design. It used Graphic User Interface for the concurrent representation of various inputs and outputs through the dialog box, mouse and keyboard. Structural optimum design can be done easily through dialog box, menu, concurrent representation of modeling process and results of structural optimum design can be understood easily through stress contour, deformed model and graph of cost function.

• Journal of the KSME
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• v.34 no.7
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• pp.527-538
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• 1994

본고에서는 지게차 설계를 위해 3차원 설계기법 및 동시병행설계 기법을 적용한 사례와 디젤엔진 타이밍계의 핵심부분인 Valve Train 시스템에 대한 연구로서 3차원 CAD시스템의 기반위에서 API(application programming interface) 및 OSF/Motif 기법 등을 활용한 설계자동화 기법을 제품개발에 적용한 사례를 소개하고자 한다.

• Journal of the Society of Naval Architects of Korea
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• v.30 no.2
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• pp.30-36
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• 1993

An expert system to help a novice engineer in designing midship section is developed. The system is developed based on a general-purpose expert system shell, NEXPERT. Firstly, the design knowledge is extracted from an existing rule scantling program. The knowledge has been grouped and structured into a hierarchy by applying object-oriented concepts. Secondly, the knowledge base is integrated with a database of existing ships and engineering analysis modules through the Application Programming Interface(API)technique. Graphical User Interface which is developed using Motif wiget set is adopted. These altogether enable construction of an user friendly expert system.