• 한국생산제조학회지
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• 제8권5호
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• pp.83-89
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• 1999

A seat frame structure in automotive vehicles made of polymer matrix composite to achieve weight reduction at low cost was developed. In order to design and manufacture the actual product studies on material selection and structural analysis were performed. Structural analysis was performed with a finite element method. The analysis was done for several cases suggested in various safety regulations. Each results was utilized to modify the actual shape to obtain a lighter, safer and more stable design. The final design was used to produce a sample bottom plate of the seat structure with reinforced by X-shape frame. Substitution of the material resulted in a weight reduction effect with equivalent strength fatigue and impact characteristics.

• 한국자동차공학회논문집
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• 제22권7호
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• pp.127-134
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• 2014

Active body control system is an important system for determining the driving stability and ride comfort of the vehicle. Active body control system is composed of a cylinder unit power supply unit, and control valve unit. Control valve is a proportional pressure control valve, the dynamic characteristics of the valve affects the performance of the active body control system. We have developed an analytical model, we analyzed the design parameters of the proportional pressure control valve. Further, by knowing the design parameters effect on the system and to optimize the design parameters, and improved performance of the dynamic properties.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.991-992
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• 2007

This paper presents high efficiency IPMSM design for compressor of refrigerator having main operation speed of 1800rpm and 3600rpm. The characteristics of IPMSM greatly vary according to back-EMF and inductance. Therefor the design is to estimate the range of back-EMF and inductance satisfying the requirements of IPMSM in the initial design. Thereafter the optimization is performed to consider magnetic saturation and reduce torque ripple. In the end the validity of the design process proposed in this paper is verified by test.

• The Journal of the Acoustical Society of Korea
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• 제20권2E호
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• pp.51-58
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• 2001

Equations of motion of an engine mount system including foundation flexibility are derived. Forced vibration analysis is carried out for the given engine mount system excited with the unbalanced force and moment. A new optimal design method for the engine mount system is proposed, in which vibration characteristics of the chassis frame structure are considered as design parameters.

• 오토저널
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• 제14권5호
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• pp.10-14
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• 1992

• 오토저널
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• 제24권6호
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• pp.17-21
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• 2002

• 오토저널
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• 제16권5호
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• pp.10-19
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• 1994

• 오토저널
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• 제27권1호
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• pp.31-36
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• 2005

• 오토저널
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• 제27권1호
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• pp.25-30
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• 2005

• 오토저널
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• 제27권1호
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• pp.37-45
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• 2005