• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.15-19
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• 2002

With the rapid development of industrial technologies, the demand for high precision products has been increasing drastically. For this reason, the need for developing of high performance machine tool, which can ensure high precision, is desired in the industrial fields. Technologies on the spindle system manufacture, guideway manufacture, error compensation, design of bed structure, protection against vibrations, and system integration are core technology for developing of high precision machine tools. Especially, among these, design of spindle system, which is leading precision and manufacturing technique. is one of the most important technologies. A high speed and high precision spindle system, which will be used for final machining of ferrule, is designed considering the effect caused by thermal, cutting torque, cutting farce, and work-piece materials. The detail process of analysis is presented.

• Fashion & Textile Research Journal
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• v.11 no.2
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• pp.242-251
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• 2009

Traditional patterns of Korea vary greatly and have excellent value in terms of artistic merit. Nevertheless because there are not enough the research and development of them, traditional patterns of Korea are not yet recognized in internationally aesthetic value. Therefore the development of designs modernizing traditional patterns of Korea is urgently needed. In this study, I chose Four gracious plants as the subject materials of textile design development. Before everything I examined data of Four gracious plants expressed on Blue and white porcelain. And I chose data that are suitable to express modern image among them. I set my face to develop the textile design of Korean images by adding modern scenes with them. Also, I were trying to make fashion products like muffler and tie by using techniques such as burn out, crayon dying and spray dyeing.

• 유체기계공업학회:학술대회논문집
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• 2002.12a
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• pp.307-313
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• 2002

In the paper, the prototype development of a 75kW class microturbine for the distributed generation market is partly presented which has continued with the government funding. In the introduction, an overview of the development of microturbines in the world is presented. A series of development procedures are shown with design, manufacture and self-sustaining tests. During the first year, aerodynamic and structural design/analysis, mechanical design are performed for the compressor, the turbine and the combustor. A premixed lean burn combustor technology is used fur the low emission requirements. Foil air bearings and high-speed motors are employed for higher reliability. The self-sustaining conditions have been successfully achieved with the prototype manufactured engine as a preceding operation.

• The Research Journal of the Costume Culture
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• v.18 no.1
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• pp.44-63
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• 2010

The purpose of this study was to examine the process to manufacture costume design of main female characters of TV historical drama and suggest the costume, which is developed with contemporary taste. As study methods, the literature study using books and theses concerning costume, fine art, culture and history were used for theoretical background and the empirical study method manufacturing actual costume on the basis of literature and relic were used for dress manufacture. The study results were as follows. The costume was decided by researching historical investigation material on the basis of synopsis, grasping director's basic intention, setting design direction, preparing design map of each character, selecting style, detail, fabric and color, manufacturing sample and performing camera test. The design concept of was Modern & Chic & Clean, short & fitted chogori, chima with wide & abundant cocoon silhouette, clean & bright colors and 100% silk fabric. For the design discrimination of royal semi-formal costume, color was used to symbolize character and pattern was used to symbolize social status. In addition, detail change was adopted depending on the body shape of actor and there was almost no design discrimination in silhouette and fabric. Petticoat of the west, modernization of transitional pattern and change of detail were adopted as design elements to add contemporary taste.

• Proceedings of the KIEE Conference
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• 1998.07a
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• pp.140-142
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• 1998

The major part of SMES (Superconducting Magnetic Energy Storage) system consist of the superconducting coil, cryostat and current lead, power converter. The 0.7MJ SMES coil was a design and manufacture by using SMES device that we developed a design code. A SMES coil was wound with high winding tension in order to prevent wire motion from Lorentz force. This paper described optimum design for the SMES coil.

• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.74-75
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• 2004

• Journal of the Korea Institute of Military Science and Technology
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• v.2 no.1
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• pp.132-138
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• 1999

This paper addresses an analytical approach to the mechanical error analysis of gear train and tolerance design and manufacture of gear train in restricted space considering motor driving torque, driving system inertia, motor acceleration, motor rotor inertia and friction torque. The gear train is designed to have optimum gear ratio in restricted space and each gear is manufactured to have the lowest weight and each gear tooth is heat-treated to have robustness. Based on the small difference between the mechanical error analysis and measurement, gear train design with optimum gear ratio and restricted space and robustness is proposed

• Journal of the Korea Safety Management & Science
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• v.5 no.2
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• pp.75-85
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• 2003

Manufacturing firms have adapted seriously the Design for Manufacture and Assembly (DFMA) techniques which consider concurrently all factors related to the product development by using effective communications and sharing of information on product development processes. This study performed modelling and characterizing the data related to product manufacturing information for Design for Manufacture(DFM) evaluation and analysis. It adapted component-based development method for communicating and managing manufacturing information among distributed manufacturing organizations. Introducing component-based development offers safety and speed to network based system. This development using Unified Modelling Language(UML) provides efficient way for reconstruction and distribution of applications. Also, the integration of database and component into the internet environment enables to communicate and manage effectively manufacturing information for DFM evaluation and analysis at any place in the world. Therefore this system can make it more reasonable that evaluating, analyzing, and effective decision making of product design using DFM technique.

• Journal of Institute of Control, Robotics and Systems
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• v.17 no.3
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• pp.218-222
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• 2011

This paper proposes a single-joint optical torque sensor with one body structure. Conventional optical torque sensors consist of three parts, two plates and an elastic structure. They have slightly slipping problem between plates and elastic structure due to the manufacturing tolerance. Since the order of measurement range of optical sensor is about ten micrometers, the slipping problem causes large measurement error, especially in the case of vibrational or high speed plant. This problem does not occur in the proposed design due to the one body structure. The proposed sensor has advantage of low cost, light weight, and small size. And it is easy to design and manufacture. Simulation works that analysis of stress and strain are performed accurately. To demonstrate the performance of proposed sensor, experiments were implemented to compare with a commercial force/torque sensor (ATI Mini45).

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2004.05a
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• pp.237-242
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• 2004

In design stage of high precision manufacture/inspection FAB building, it is necessary to investigate the vibration allowable limits of high precision equipment and to study a structure dynamic characteristics of C/R and Sub-structure in order to provide a structure vibration environment to satisfy thess allowable limits. The aim of this study is to investigate the dynamic characteristics of PC-Type mock-up structures designed for next TFT LCD FAB through vibration measurement and analysis procedure, therefore, to provide a proper dynamic structure design for high precision manufacture/inspection work process, which satisfy thess allowable limits.