• 대한기계학회논문집
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• 제18권9호
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• pp.2349-2357
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• 1994

This paper presents a facial expression transformation algorithm and drawing rule generation algolithm for a portrait drawing robot which was developed for the '93 Taejeon EXPO. The developed algorithm was mainly focused on the robust automatic generation of robot programs with the consideration that the drawing robot should work without any limitation of the age, sex or race for the persons. In order to give more demonstratin effects, the facial expression change of the pictured person was performed.

• 대한조선학회논문집
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• 제46권6호
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• pp.622-630
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• 2009

This paper deals with the automation techniques of ship assembly drawing generation, which help the designer to reduce the man-hour for completing the drawings, and improve the quality of the drawing for the given time. The automation techniques are necessary for the reasons of economical efficiency and improve communication between the designers and shop-makers. The overlap-avoidance algorithm of this paper maximizes the readability of the drawings using the optimization techniques and the heuristic rules, especially for the ship assembly field.

• 한국생산제조학회지
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• 제5권1호
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• pp.43-50
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• 1996

From a manufacturing standpoint it would be desirable to monitor the degradation of drawing die, that is essential for the maintenance of die quality, the evaluation of product integrity and the reducing scrap. Acoustic emission is powerful method in monitoring fine wire drawing process, especially in detecting the die fracture at early stage. Experiments also suggested that acoustic emission sigals contained valuable information regarding the stage of a drawing process such as the surface appearance of products and the condition of lubrication. These informations are AE monitoring techniques a possible tool in monitoring the drawing process operation. In order to approach this, this paper discusses the nature of acoustic emission signal presented which illustrate the effects of wire and die material, lubricants, and drawing speed on the generation and the mean voltage level of acoustic emission signal. From these experimental, results, we understanded controlling factors of acoustic emission generation.

• 대한조선학회 특별논문집
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• 대한조선학회 2005년도 특별논문집
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• pp.127-133
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• 2005

DSME has successfully developed the unified CAD system (DACOS) for the commercial ship based on its design know-how accumulated for several years. Currently, DSME is expanding the unified CAD system to plant and special ship design. In this paper, the development of pipe design, especially, isometric drawing and BOM(Bill of Material) generation will be introduced isometric drawing and BOM generation are major activities of pipe design in shipbuilding. The drawing is used for pipe construction and installation while the BOM is used for purchasing and manufacturing pipe line. These activities are time-consuming and tedious jobs done by designers because the drawing should be generated as a non-scaled symbolized drawing that can be easily understood and the BOM information should be extracted without mistake. Therefore, we implemented automatic isometric drawing and 80M generation system for pipe design. In this paper, the developed system and the used technology will as well be introduced and a design output in a plant project as an applied example will be illustrated.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1991년도 추계학술대회 논문집
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• pp.95-100
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• 1991

From a manufacturing standpoint it would be desirable to monitor the degradation of drawing die, that is essential for the maintenance of quality, the evaluation of product integrity and the reducing scrap. Acoustic emission is powerful method in monitoring fine wire drawing process, especially in detecting the die fracture at early stage. Experiments at so suggested that acoustic emission signals contained valuable information regarding the stage of a drawing process such as the surface appearance of products and the condition of lubrication. Using these informations makes AE monitoring techniques a possible tool in monitoring the drawing process operation. In order to approach this, this paper discusses the nature of acoustic emission signals produced in drawing process under various conditions. Experimental results are presented which illustrate the effects of wire and die material, lubricants, and drawing speed on the generation and the mean voltage level of acoustic emission signals. The results from these tests give controlling factors of acoustic emission generation.

• 한국산학기술학회논문지
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• 제16권2호
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• pp.1381-1387
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• 2015

본 논문은 음악적 형태 생성을 위한 스케치 드로잉 시스템, 엠쉐이퍼 (이하 m-shaper)를 제안한다. 간단한 스케치 드로잉을 통해 사용자들은 컴퓨터로 바로 연주가 가능한 음악적 형태를 구성할 수 있다. m-shaper는 드로잉 특징을 규정하는 변수를 획득하고 이를 이용하여 음표와 형태를 제작한다. 타블렛을 이용하여 4가지 스케치 움직임 정보, 압력, 회전각도, 기울기 각도, 속도 정보를 감지한다. 형태를 구성하는 각각의 점은 악기 종류, 음길이, 음높낮이, 옥타브를 표현하는 특정음표에 매핑된다. 현재 m-shaper 시스템은 디자인 초기단계를 지원하는 컴퓨터 연산도구로 개발되었다. 디자이너는 음악적 영감을 받으며 기하학적인 스케치를 그리고 개념 형태를 탐색할 수 있다. 디자이너들은 관련 제어값을 조절하면서 결과물을 조절하고 스케치 드로잉을 변형할 수 있다.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
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• pp.341-345
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• 1996

We have developed the drawing and part information management system that could integrate drawing information with corresponding part information in design process. The modules developed include the drawing information management (DIM) and the part information management(PIM). DIM consist of processing drawing management, approved drawing management, disused drawing management, and drawing print management. PIM consist of new part management, option management, and part change management. Errors which may occur in the design process can be reduced by reference to part information directly. In addition, the number of parts can be reduced by minimizing the frequency of new parts generation through the systematic management.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2002년도 가을학술발표대회 디자인학 연구
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• pp.110-111
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• 2002

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2009년도 추계학술대회 논문집
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• pp.403-407
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• 2009

In this work, finite element investigations were carried out to manufacture a seamless aluminum liner without crack generation using four-stage deep drawing followed by two-stage ironing process. In order to predict the crack generation during the liner manufacturing process, the Normalize Cockroft-Latham(NCL) which is one of ductile fracture criteria was adopted. In addition, the tensile tests were carried out to obtain the critical value of NCL by comparing the experimental and FE simulation results. From this, various case studies based on FE simulation were carried to obtain the optimum die designs which can prevent the crack generation during ironing processes. Finally, the aluminum liner was successfully made using obtained die designs so that requirements were met in terms of thickness and height of the liner.

• 소성∙가공
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• 제9권6호
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• pp.638-643
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• 2000

This study Is concerned with the development of design support program for deep drawing process. The present support program is designed to generate the layout drawings by utilizing the following key functions: analysis of product shape, generation of key stages by pattern database, determination of layout generation method, generation of layout. furthermore, from the results by process design program input data for simulation Is automatically generated with appropriate process parameters and connected seamlessly to carry out the finite element analysis so that the design can be checked for the possible problems in real manufacturing process. The designer can generate layout drawings and test the design by simulation quickly and conveniently In these system designer can verify and optimize the design. We tested this system for various type of product shape md found that the generated layout is in good agreement with the real cases.