• Korean Architects
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• s.568
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• pp.120-125
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• 2016

오랜만에 지난 작업들을 뒤돌아 볼 기회가 생겼습니다. 누구에게나 인생의 큰 흐름에 영향을 미치는 사건이 일어나기 마련인데요, 저의 경우는 지난 근 십년간 함께 해온 파라메트릭 디자인을 접하게 된 일이 그러한 사건들 중 하나였다고 생각이 됩니다. 그런 의미에서 트레이싱지 위에 로트링펜으로 선을 처음 그었던 그 강렬했던 기억 이후로 건축 설계를 해오면서 가장 기억에 남는 한 사건을 꼽으려고 한다면 단연히 Cornell 건축 대학원 재학 당시 처음 접하게 되었던 GenerativeComponents 수업을 이야기 하고 싶습니다. 연재를 시작하면서 잠시 언급한 바가 있었던 것 같은데요, 파라메트릭 디자인이라는 미지의 영역을 알게 해준 것이 바로 Bentley 사에서 만든 GenerativeComponents 라는 파라메트릭 디자인 툴 입니다. Microstation은 Autocad와 함께 건축설계 시장에서 많은 사용자층을 확보 하였던 캐드 툴 중 하나 이었으며 자체적으로 BIM 및 파라메트릭 툴을 위한 패키지가 Rhino의 Grasshopper의 출현 이전부터 존재하여 왔을 정도로 발전된 자동화 설계 플랫폼이었습니다. 현재도 특정 건축사사무소들이 Microstation을 꾸준히 사용하고 있으며 특히 Infra structure, plant나 civil engineering 등의 건축 외 설계 분야에서는 여전히 폭넓은 사용자층을 확보하고 있습니다. 하지만 건축 시장에서는 Rhino를 바탕으로 하는 플러그인 패키지 및 Autodesk의 건축설계 통합 패키지 등에 밀려서 사용자층이 얇아진 편입니다.

• Proceedings of the KSME Conference
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• 2001.06c
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• pp.580-585
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• 2001

A response surface method(RSM) is utilized for structural optimization and implemented on a parametric CAD platform. Once an approximation of the performance function is made, no formal design sensitivity analysis is necessary. The approximation gives the designer the sensitivity information and furthermore intuition on the performance functions. The scheme for the design of experiment chosen for the RSM has a large influence on the accuracy of converged solutions and the amount of computation. The D-optimal design criterion as implemented in this paper is found efficient for the structural optimization. The program is developed on a parametric CAD platform and tested using several shape design problems of such as a torque arm and a belt clip. It is observed that the RSM used provides a faster convergence than other approximation methods for design sensitivity.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.11
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• pp.180-187
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• 2003

A CAD-based seamless design system for MEMS named DS/MEMS was developed which performs coupled-field analysis, optimal and robust design. DS/MEMS has been developed by means of integrating commercial codes and inhouse code-SolidWorks, FEMAP, ANSYS and CA/MEMS. This strategy results in versatility that means to include various analysis model, corresponding analyses and approximated design sensitivity analysis and user friendliness that design variables are taken to be selectable directly from a CAD model, that the problem is formulated under a window environment and that the manual job during optimization process is almost eliminated. DS/MEMS works on a parametric CAD platform, integrating CAD modeling, analysis, and optimization. Nonlinear programming algorithms, the Taguchi method, and response surface method are made available for optimization. One application problem is taken to illustrate the proposed methodology and show the feasibility of DS/MEMS as a practical tool.

• Journal of the Korean Society of Clothing and Textiles
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• v.43 no.5
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• pp.711-724
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• 2019

The automatic drafting of clothing patterns can be realized through an Apparel Cad System when the clothing pattern has a pattern expression in human dimensions. However, it is difficult to apply automatic systems because it is difficult to express the ready-to-wear of various complex designs with one system. This study develops ready-to-wear patterns in an automatic drafting style and also develops nude patterns with human dimension-based drafting styles that can be applied to enable the setting of margins by design. For this purpose, radial body length measurement items and measurement methods were newly defined for female standard dummy and nude pattern systems. The institutional program was developed through the principle of a nude pattern system which is different from the pattern system of the existing system. The nude pattern developed in this study represents a basis and framework for the gradual transformation of the production pattern into the automatic system of the future and as a pattern having an institutional formula based on human dimensions.

• Journal of the Korean GEO-environmental Society
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• v.15 no.3
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• pp.57-63
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• 2014

This study has been conducted to building a library intended for structures considered in the design of reclamation for design automation and developing browser for integrated management system. The library has been developed using a parametric modeling method capable of changing section shape, also classifying standard crossing and family library, has been developed according to the working environment. Classified library by the characteristics manages objects and working modeling on based BIM has been developed browser using the C# program for objects to use conveniently. By interworking between developed Browser and 3D Autocad based BIM, it is possible to use easily at design drafting, calculating quantities, developing a new library, and managing a library. The browser using effectively exclusive library to reclamation is developed in this study.