• 한국융합학회논문지
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• 제10권4호
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• pp.189-194
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• 2019

본 논문은 산업전반에 빠르게 도입되어가고 있는 3D프린팅 기술을 이용하여 주얼리 디자인에 적용하기 위해 시작되었다. 선행연구를 살펴본 결과 디자인 분야에서는 3D출력 방식중 FMD방식이 가장 많이 사용되고 있었다. 하지만 주얼리 디자인에서는 3D프린팅은 제작과정 중 주조 과정에 사용되고 있어 출력방식이 FMD가 아닌 DLP방식을 사용하고 있다. 따라서 연구자는 DLP방식의 3D프린팅을 활용하여 주얼리 디자인에 응용함으로서 주얼리 디자인의 재료적 기능과, 활용 가능성에 대해 연구 작품을 통해 알아보았다. 그 결과 3D프린팅 출력 후 주조과정 없이 주얼리 디자인에 응용하고 에나멜, 정은 등을 함께 활용하여 브로치를 완성함으로서 가볍고 단단하며 다양한 색상의 완성품을 제작하여 적용 가능한 재료임을 알 수 있었다. 또한 기하학 구조가 아닌 주얼리 디자인에서 주로 사용되는 곡선적 디자인을 Rhino CAD로 크기와 형태를 정확히 예측할 수 있어 향후 주얼리 디자인 조형 형태 전개에 쉽게 활용할 수 있는 다양한 발전 가능성을 엿 볼 수 있었다.

• 한국CDE학회논문집
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• 제12권1호
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• pp.39-49
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• 2007

Recently three-dimensional (3-D) die design and production process has been widely introduced into the tooling shops of automotive manufacturers to reduce time-to-production of brand-new automobiles. 3-D solid models created in CAD systems are used not only for various simulations for design verification, but also for NC tool path generation to machine dies and their Styrofoam patterns. However, a lot of time and cost will be required to build solid models for dies if designers use only the generalized modeling capabilities of commercial 3-D CAD systems. To solve this problem, it is necessary to customize 3-D CAD system for the specific die design and manufacturing process. This paper describes a dedicated 3-D CAD system based on Unigraphics for die design for automotive body panels. The system provides not only 3-D design capabilities, but also standard part libraries, to enhance design productivity. The design process modeling technology has been introduced to facilitate redesign of the die for the modified panel. By introducing this system, dies can be designed more rapidly in the 3-D space, and their solid data can be directly transferred to CAM tools for NC tool path generation and simulation tools for virtual manufacturing.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.37-38
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• 2018

BIM(Building Information Modeling) in the architecture, VDC(Virtual Design and Construction) defined CIFE(Center for Integrated Facility Engineering) of Stanford university in USA, and Data-driven design definition issued by TECDOC-1284 of IAEA are doing data-level design generated by 3D CAD technology, integrating and managing related information based on the 3D model, and Using 3D models effectively during nuclear power plant life cycle. 3D model of domestic nuclear power industry is using interference review between design fields, 4D system linked 3D construction model and schedule activity, but the 3D model generated in the design phase is effectively not utilized during the construction, operation, decommissioning. therefore, This study is aimed to suggest 3D model LOD(Level of Detail) advancement method through the analysis of existing literature, 2D drawings, and 3D models throughout nuclear power plant lifecycle.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 추계 학술논문 발표대회
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• pp.112-113
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• 2019

In this study, development of 3D software for automated formwork design was conducted to achieve optimization and reduction of labor for temporary work. Through the literature review, the current technical level was identified and the required functions of 3D software for automated formwork design were derived. The 3D software should be developed with the aim of automating 3D design, improving construction quality and utilizing the Internet of Things. As a preliminary step to develop 3D software, the prototype demo version was developed to implement 3D design automation function, which confirm the possibility of 3D software development.

• 한국CDE학회논문집
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• 제13권2호
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• pp.139-152
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• 2008

In order to survive worldwide competition, today's industries are experiencing strong pressure to introduce higher quality products with lower cost and shorter lead-time. Therefore, the role of design in the process of product development is increasing in significance. In this research, two methods for improving the design capability are proposed: construction of design environment and design automation using 3D CAD system. The designers and design process are the core of product design using 3D CAD system. In order to maximize the design performance, construction of the design environment including selection of a suitable system, designer training for best use of the system, establishment of an efficient design process, and stabilization of the environment are required. A method is suggested to construct design environment by systematizing the contents of the projects and consulting experiences carried out for various categories of business such as electronic devices, motorcycles, electricity parts, sanitary wares, injection molds, and die casing molds. Design automation helps reduce tedious and time-consuming jobs, simplify complicated and error-prone modeling and drawing works to shorten the lead time and improve the product quality. To develop a design automation system, understanding the process and the related knowledge on design are very important before implementing the system using API provided by 3D CAD system. In this research, an eight-step procedure is proposed for the development of a design automation system. These eight steps are analysis of needs, determination of specification, verification of specification using 3D CAD system, inspection of related API functions, programming, field test, application in practice, and maintenance. A case study in which five design automation systems in the design of turbine generators using the proposed method is introduced in detail. These systems play important roles in the generation of various output items including 3D models, drafts, material information, and NC data. The case study shows how effectively the design time is reduced and the quality improved using those systems.

• 디자인학연구
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• 제17권1호
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• pp.241-252
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• 2004

CAD는 이미 디자인 분야에서도 중요하게 사용되는 도구로 동시 공학적 프로세스 상에서 전통적인 디자인 방법은 점점 사라져 가고 있다. 하지만, 리버스 엔지니어링(Reverse Engineering) 방식의 CAD 도구는 디자이너들의 작업을 위해 사용하는 도구로는 아직 많은 문제점들을 가지고 있다. 특히 디자인 프로세스 초기 단계의 직관적인 작업의 특성으로 인해 디자이너들이 기존의 CAD 도구들을 이 단계에서 적용하기는 거의 불가능하다. 최근 이러한 정성적인 문제들에 대해 구체적으로 접근하려는 연구들이 소프트웨어 뿐 아니라 하드웨어적 측면에서도 이루어지고 있다. 이 글에서는 디자인 프로세스 상에서 사용되는 기존의 3D CAD 도구의 문제점들과 최근 연구되고 있는 새로운 인터페이스 접근 방법들에 대해 알아보았다. 또한 디자이너들을 위한 CAD 개발을 위한 가이드라인을 제시하고 이를 통해 유비쿼터스 컴퓨팅 환경에서 효율적으로 사용할 수 있는 디자인 도구를 개발하기 위한 방안을 제시하였다.

• 한국의류학회지
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• 제45권3호
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• pp.439-452
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• 2021

The purpose of this thesis is to compare the efficiency of 3D digital design technology with traditional hand-drawn designs of a transformable dress for a small wedding. After reviewing the literature, this empirical study analyzed the tendencies of small wedding dress design, concluding that a transformable dress for a small wedding consists of a bodice, skirt, and outer skirt or gown with train, each of which has five possible designs, resulting in 15 virtual items within the 3D program. The 3D program provides the benefit of easy design development as well as reduced costs and design time. Specifically, the random combination of 15 items with layers in the 3D program produced 150 different styles in 5 hours, while hand-drawing 150 dresses took 50 hours. Moreover, the 3D program does not need any material, but 150 physical drawings required a sketchbook, pencil, eraser, and marker, total cost 31,100 won. Additionally, the 3D whole-body scan helps the bride decide which design she prefers through virtual try-ons. Eventually, the 3D program could help a bride decide what she prefers and produce it with virtual simulation, resulting in reduced time and costs.

• 한국CDE학회논문집
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• 제21권3호
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• pp.215-223
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• 2016

The low price around 1000 USD makes consumer 3D printers as a new additive manufacturing platform for the personal manufacturing where consumers can make and sell their own products. To allow the consumers to design and manufacture their products, not only economic 3D printers but also supporting information systems for their design and manufacturing are essential. This study suggests an extended product data management (PDM) system that can support both the design and manufacturing of personal products with consumer 3D printing services. This extended PDM system helps consumer designers use advanced PDM technologies for their design and connected 3D printing services with Internet of Things (IoT) technology for realization of their products. As a result, the proposed system supports the consumer designers a seamless integrated product development and manufacturing environment supported by PDM and consumer 3D printing services.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2005년도 추계 학술발표대회 논문집
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• pp.182-183
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• 2005

• Journal of the Korean Statistical Society
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• 제19권1호
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• pp.15-23
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• 1990

The basic conditions for a parallel flats fraction to be a search design of resolution III.2 have been developed in Um (1980, 1981, 1983, 1984). A series of resolution III.2 search design for $3^n, n=4, 5, 6$ are presented in Um (1988). In this paper a resoultion III.3 search design for $3^4$ is presented.