• 한국데이터정보과학회:학술대회논문집
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• 2001.10a
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• pp.44-55
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• 2001

In the Taguchi parameter design, the product-array approach using orthogonal arrays is mainly used. However, it often requires an excessive number of experiments. An alternative approach, which is called the combined-array approach, was suggested by Welch et. al. (1990) and studied by others. In these studies, only single response variable was considered. We propose how to simultaneously optimize multiple responses when there are correlations among responses, and when we use the combined-array approach to assign control and noise factors.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.695-698
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• 2010

본 논문은 High-speed signal에 대한 기본적인 설계 방법론, Differential signaling, Impedence matching, Decoupling Method 등에 대하여 논한 후 High-speed signal 의 전송 품질을 개선하기 위한 GND via 의 효과에 대하여 논하고자 한다. S-parameter simulation 및 실제 제품 적용 후 파형의 변화를 관찰하여 GND via 의 효용성을 살펴보아 High-speed signal Design 할 때 Design limitation 상황에 대해 적절한 방법론을 말하고자 한다.

• Proceedings of the KIEE Conference
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• 2003.11c
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• pp.886-889
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• 2003

In this paper a design of educational robot based on a PC and/or a microprocessor is discussed. The educational robot has 5 DOF and Is made with Swiss Mini Servomotor and Motor Controller IC LM629N. Also, a GUI(Graphical User Interface) is programmed by Visual Basic. This system is completed to consider control properties of the educational robot with 5-DOF that can be changed the parameter of controller by software.

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 2003.03a
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• pp.259-266
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• 2003

This paper begins with the seismic performance evaluation of an existing building, which exhibits the need of additional damping to reduce its response. Required damping ratio is found by capacity spectrum method to satisfy a target response. It is expressed with the design parameter of active mass damper by adopting Linear Quadratic Regulator, Optimal gains are obtained and then weighting matrices are found. Finally the seismic performance by added active mass damper is demonstrated, which satisfies the target response.

• Proceedings of the KSR Conference
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• 1999.11a
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• pp.155-162
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• 1999

Extruded aluminum sections are used to the light construction of the rall vehicles structures However, the research works on the crashworthy design of the extruded aluminum sections are not published sufficiently in this paper, the impact energy absorption characteristics of extruded aluminum sections are investigated by crash simulation and test The optimized energy absorbing studies are also performed based on the selected design parameter variations of the sectional shapes and the dimensional ratios.

• International Journal of Precision Engineering and Manufacturing
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• v.3 no.2
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• pp.52-60
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• 2002

Axiomatic Design is the one of many useful methods for making a good design. In this method, the independency of Functional Requirements (FRs) is an important property to determine whether the design is good or not. Until now so many designers have decided the independency between FRs by their own decisions. The way depending on inspiration is simple and fast, but it can not be considered as a precise conclusion. Also there are not exact rule that evaluate the quantitative independence between FRs. This paper will show the way to evaluate the quantitative independence of FRs from the comparison between FRs of lower levels, and develop more efficient and objective tool in Axiomatic Design.

• Proceedings of the Korean Geotechical Society Conference
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• 2002.11a
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• pp.1-26
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• 2002

This study addresses preliminary design and construction specification for micropiles. Especially several design methods for micropiles in sands, clays or mixed soil layers are described. The bearing capacity of micropiles are mainly depended upon the shaft resistance. Therefore, the pressure of grouting is one of the most important design parameters for the bearing capacity evaluation of micropile. There is no theoretical way to evaluate the shaft resistance of micropile up to now because grouting method is another key parameter for micropile design approach. Because of above reasons, the present design approaches of the micropile are based on the collected field data The bearing capacities of designed micropiles should be verified by static load tests before and after construction at the planned site.

• International Journal of High-Rise Buildings
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• v.4 no.4
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• pp.227-239
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• 2015

This paper discusses the design parameters that are required for the design of high-rise building foundations, and suggests that the method of assessment for these parameters should be consistent with the level of complexity involved for various stages in the design process. Requirements for effective ground investigation are discussed, together with relevant in-situ and laboratory test techniques for deriving the necessary strength and stiffness parameters. Some empirical correlations are also presented to assist in the early stages of design, and to act as a check for parameters that are deduced from more detailed testing. Pile load testing is then discussed and a method of interpreting bi-directional tests to obtain pile design parameters is outlined. Examples of the application of the assessment process are described, including high-rise projects in Dubai and Saudi Arabia.

• Transactions of the Korean Society of Automotive Engineers
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• v.4 no.6
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• pp.153-163
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• 1996

An expert system to design compressor valve systems has been developed. Design process is viewed as a chain of devisions based on the results of necessary analyses. Actual design is implemented by the interaction between the expert system and the user. In this work, it is demonstrated how a final design is achieved by utilizing the rule bases and analysis capability of the system. The structure of the rule bases and related parameter studies are also explained. Advantages of using an expert system approach for valve designs are explained using a practical example.

• Journal of the Korean Society for Precision Engineering
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• v.28 no.1
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• pp.89-95
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• 2011

High stiffness frame design for a spine manipulation device was developed in this research. For the safety of a spinal manipulation, high stiffness of the device is required. A finite element (FE) model of the device frame is created and validated by measured vibration data. Parameters are suggested for high stiffness design of the frame. Based on the Taguchi design of experiment (DOE), a practical set of design parameter values is suggested.