• Proceedings of the Korean Society of Precision Engineering Conference
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• 2012.10a
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• pp.155-156
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• 2012

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.309-310
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• 2010

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.733-734
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• 2008

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.1179-1180
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• 2011

• Proceedings of the KSME Conference
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• 2001.06c
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• pp.376-379
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• 2001

This paper describes the design and fabrication process of super water-saving toilet bowl system by the theory of inventive problem solving (TRIZ). The physical contradiction in TRIZ is defined to obtain the conceptual design for saving water in toilet bowl system with preventing the bad smell from septic tank. The super water-saving toilet bowl system is obtained by using the separation principle in time for resolving the physical contradiction. The consumption of water in the prototype system fabricated, is estimated about $3{\ell}$ comparing with $13{\ell}$ of that in conventional toilet bowl system. The noise from water in the prototype toilet bowl system is decreased by 1/3 of that in conventional toilet bowl system.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.848-854
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• 2005

In mechanical design part, though many design methodologies have been developed, most of them are applicable for detailed design. Therefore, when people had to do conceptual design, they relied on their individual creativity. To improve this phenomenon, some methodologies are developed such as TRIZ and axiomatic design. In this paper, both TRIZ and axiomatic design methodologies will be reviewed. In addition, some papers which contain conceptual design case study will be also dealt with. These case studies are results of application both axiomatic design and TRIZ methodology.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.1548-1552
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• 2007

The roll forming machines currently used in industries require manual change of individual rolls taking 30 to 60 minutes of operation shutdown, This in turn reduces the operational efficiency by considerable margin and has one of the major negative effect on the overall productivity. To improve the operational efficiency of the existing roll forming machine, current manual roll changing process needs automatation to save considerable amount of time. In this study, TRIZ is adopted in the development of new roll forming machine. The Ideal Final Result (IFR) was set up initially and the fundamental causes were examined by Root Cause Analysis. The final proposed concept was drawn from the application of 40 invention principles of TRIZ.

• Proceedings of the KSME Conference
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• 2007.05a
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• pp.1069-1074
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• 2007

TRIZ is innovative problem solving methodology. It can solve problems by systematical and convergent method, not by the existing divergent method like 'Brainstorming'. In this paper, TRIZ is used for reduction noise from gear in transmission. In order to reduce gear noise, design resources is derived first. According to the derived idea, level and function of system can be defined. After that, we suggest a way to reduce the noise from gear in transmission using 40 Principles and Substance-field analysis of TRIZ.

• Proceedings of the Safety Management and Science Conference
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• 2007.11a
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• pp.121-133
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• 2007

This paper suggest the methods when we solve problems by TRIZ before grasp of customer needs by Kano model. Recently, many companies are very interested in TRIZ such as Six Sigma. Especially, the company commences to use TRIZ for solving a lot of problems in which occur by products and services. But It will be happen a lot of time and costs to solve all problems completely. Finally, This paper helps more effective problem definition to avail Kano model for reducing time and costs at solving problems by TRIZ.

• Journal of the Semiconductor & Display Technology
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• v.8 no.4
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• pp.83-88
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• 2009

In this paper TRIZ was used to solve noise and dust reduction related to cable carrier chain system. On modern machines in a clean room, the contradictions arose due to increase noise and dust for the high speed were eliminated with 40 principles and seperation rules. As the results, the sound pressure level of the new carrier chain system was reduced to below 40 dB(A), and cleanroom classifications was satisfied with ISO class 4. In these successful results, TRIZ showed its usefulness in solving the design problems even with severe constraints.