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- 저자 : 이종기(Jong Ghi Lee) (검색결과 3 건)
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기여도 분석법을 이용한 자동차 브레이크 시스템의 스퀼 소음 예측
이종기(Jong Ghi Lee),임현석(Hyun Seok Lim),김희용(Hee Yong Kim),백재욱(Jae Wook Baek) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
A method for determining the geometric stability characteristics of a brake comer module(BCM) is presented. Since disc brake squeal noise typically occurs at unstable resonant frequencies of a system, the likelihood of disc brake squeal for a particular design can be determined. Finite element methods are used to derive complex eigenvalue about a brake comer module. Some unstable modes calculated by finite element methods correspond to squeal noise data. Through kinetic energy participation analysis for each parts of BCM, we can efficiently predict about squeal noise data.
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기여도 분석법을 이용한 자동차 브레이크 시스템의 스퀼 소음 예측
이종기(Jong Ghi Lee),임현석(Hyun Seok Lim),김희용(Hee Yong Kim),백재욱(Jae Wook Baek) 대한기계학회 2009 大韓機械學會論文集A Vol.33 No.10
A method for determining the geometric stability characteristics of a brake corner module (BCM) is presented. Since disc brake “squeal” noise typically occurs at unstable resonant frequencies of a system, the likelihood of disc brake squeal for a particular design can be determined. Finite element methods are used to derive complex eigenvalue for a brake corner module. Some unstable modes calculated by finite element methods correspond to squeal noise data. Through kinetic energy participation analysis for each part of BCM, we can efficiently predict squeal noise data.
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혼합 게면활성제 시스템에서의 상전이에 따른 점도 변화 효과
한동성 ( Dong Sung Han ),지경엽 ( Gyeong Yup Ghi ),김원종 ( Won Jong Kim ),이종기 ( Jong Gi Lee ) 한국공업화학회 2002 응용화학 Vol.6 No.2
The investigation of viscosity control on phase transition in mixed surfactant system has been carried out by inorganic salt, hydrotrope, surfactant composition and surfactant type. The viscosity increased as inorganic salt content increased in the low concentrated micellar phase. but, Hexagonal phase tranfered to Lamellar phase as inorganic salt content increased. Also, the viscosity decreased as inorganic salt content increased in the concentrated lamellar phase. The repulsion force of Inorganic salt in the solution is repulsive to the electrical double layer of the respective micelle. In this case, the viscosity increased or decreased in the respective phase as the directions of received repulsion force between the electrical double layer and inorganic salt. The efficiencies of hydrotropes were different in the respective phase. The mechanism and efficiencies of hydrotrope has been studied in the micellar phase and Lamellar phase.
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