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류미라(M. R. Ryu),이권희(K. H. Lee),김영희(Y. H. Kim),박흥식(H. S. Park) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
It is net easy to predict the shrinkage rate of a plastic injection mold in its design process. The shrinkage rate should be considered as one of the important performances to produce the reliable products. The shrinkage rate can be determined by suing the CAE tools in the design produces. However, since the analysis can take minutes to hours, the high computational costs of performing the analysis limit their use in design optimization. In this study, the surrogate models based on the RSM is used in lien of the original models, facilitating design optimization.
이륜자동차 디스크 브레이크의 마멸에 미치는 방열 홀 수의 영향
류미라(M. R. Ryu),전환영(H. Y. Juen),김영희(Y. H. Kim),이상재(S. J. Lee),박흥식(H. S. Park) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.4
The effect of manufacturing parameters on friction characteristics of motorcycle break system was studied using a disk-on-pad type friction tester. Such parameters conditions have an effect on the frictional factor such as applied load, sliding speed, and number of ventilated disk hole. However, it is difficult to know the mutual relation of these factors. In this study, the friction characteristics using design of experiment containing 3 elements were investigated for an optimal condition for the best motorcycle break system employing Full factorial design. From this study, the result was shown that the applied load in frictional factors was the most important, next to sliding speed, number of ventilated disk hole.
이륜자동차 디스크 브레이크의 방열 홀 수에 따른 마찰계수 및 온도에 관한 연구
류미라(M. R. Ryu),전환영(H. Y. Juen),이상재(S. J. Lee),김영희(Y. H. Kim),박흥식(H. S. Park) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
The effect of manufacturing parameters on friction characteristics of motorcycle break system was studied using a disk-on-pad type friction tester. Such parameters conditions have an effect on the frictional factor such as applied load, sliding speed, and number of ventilated disk hole. However, it is difficult to know the mutual relation of these factors. In this study, the friction characteristics using design of experiment containing 3 elements were investigated for an optimal condition for the best motorcycle break system employing Full factorial design. From this study, the result was shown that the applied load in frictional factors was the most important, next to sliding speed, number of ventilated disk hole.
류미라(M.R Ryu),배효준(H.J Bae),이상재(S.J Lee),박흥식(H.S Park),전태옥(T.O Jun) 한국트라이볼로지학회 2003 한국트라이볼로지학회 학술대회 Vol.36 No.-
We measure generally mean frictional coefficient in order to know the moving state of lubricated machine. If correct analysis of frictional coefficient on working condition for lubricated machine can be possible, it can be effect on diagnosis of lubricated machine. But mean frictional coefficient of it is progressed always unstably with a large amplitude. In this case, it is difficult of measuring the correct frictional coefficient. The purpose of this study is, carried out to get the working condition with a minimum frictional coefficient of hydraulic actuator materials using statistical techniques.
다구찌 기법을 이용한 전자오븐윈도우 부품용 사출금형의 최적설계
류미라(M. R. Ryu),김영희(Y. H. Kim),이권희(K. H. Lee),박흥식(H. S. Park) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Injection mold is a manufacturing process used to produce the various parts of complicated shape at a low cost. Many factors such as, gate size, runner size, sprue size, packing pressure, packing time, fill time affect on the quality of injection part during injection molding process. The precent study, was carried out the shrinkage analysis of electric microwave oven window mold to optimize gate shape based on filling and packing pressure with MoldFlow. Taguchi design and analysis of variance are used to optimize injection mold design.
크리깅을 이용한 전자오븐 윈도우 부품용 사출금형의 최적설계
류미라(M. R. Ryu),김영희(Y. H. Kim),이권희(K. H. Lee),박흥식(H. S. Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
It is net easy to predict the shrinkage rate of a plastic injection mold in its design process. The shrinkage rate should be considered as one of the important performances to produce the reliable products. The shrinkage rate can be determined by suing the CAE tools in the design produces. However, since the analysis can take minutes to hours, the high computational costs of performing the analysis limit their use in design optimization. In this study, the surrogate models based on the DACE is used in lien of the original models, facilitating design optimization.
류미라(M. R. Ryu),김영희(Y. H. Kim),이상재(S. J. LEE),이권희(K. H. Lee),박흥식(H. S. Park) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
It is net easy to predict the shrinkage rate of a plastic injection mold in its design process. The shrinkage rate should be considered as one of the important performances to produce the reliable products. The shrinkage rate can be determined by suing the CAE tools in the design produces. However, since the analysis can take minutes to hours, the high computational costs of performing the analysis limit their use in design optimization. Therefore this study was carried out to presume for mutual relation of analysis condition to get the optimum average shrinkage by regression analysis. The results shown that coefficient of determination of regression equation has a fine reliability over 88.3% and regression equation of average shrinkage is made by regression analysis.
모터싸이클 브레이크의 방열 홀 수에 따른 마멸에 관한 연구
류미라(M. R. Ryu),전환영(H. Y. Juen),이상재(S. J. Lee),김영희(Y. H. Kim),박흥식(H. S. Park) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.10
The effect of manufacturing parameters on friction characteristics of motorcycle break system was studied using a disk-on-pad type friction tester. Such parameters conditions have an effect on the frictional factor such as applied load, sliding speed, and number of ventilated disk hole. However, it is difficult to know the mutual relation of these factors. In this study, the friction characteristics using design of experiment containing 3 elements were investigated for an optimal condition for the best motorcycle break system employing Full factorial design. From this study, the result was shown that the applied load in frictional factors was the most important, next to sliding speed, number of ventilated disk hole.
이륜자동차 디스크 브레이크의 방열 홀 수에 따른 마멸량에 관한 연구
류미라(M. R. Ryu),전환영(H. Y. Juen),이상재(S. J. Lee),김영희(Y. H. Kim),박흥식(H. S. Park) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
The effect of manufacturing parameters on friction characteristics of motorcycle break system was studied using a disk-on-pad type friction tester. Such parameters conditions have an effect on the frictional factor such as applied load, sliding speed, and number of ventilated disk hole. However, it is difficult to know the mutual relation of these factors. In this study, the friction characteristics using design of experiment containing 3 elements were investigated for an optimal condition for the best motorcycle break system employing Full factorial design. From this study, the result was shown that the applied load in frictional factors was the most important, next to sliding speed, number of ventilated disk hole.