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이진원(C.W.Lee),장욱진(W.J.Jang),이장무(J.M.Lee),박영일(Y.I.Park) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_2
This paper reviews the time-domain model of Ishihara and transforms it in the frequency domain. The frequency domain model of torque converter can be widely used in designing and analyzing power-train vibration characteristrics. The torque converter on the experiment, has a cut-off frequency below 10Hz as predicted in the numerical calculation.
[論文] CAD 에 의한 엑스카 베이터(excavator)의 굴삭능력 향상에 관한 연구
박찬기(C.K.Park),이장무(J.M.Lee) 한국자동차공학회 1982 오토저널 Vol.4 No.2
In order to improve the digging load capacity of a domestic excavator model, computer aided design (CAD) technique was applied to the optimum design of the excavator boom.<br/> From this study, the digging load capacity of both the bucket cylinder and the dipperstick cylinder could be made about same and the overall digging load capacity could be increased by about 50%. Also, the computer program package developed in this study can be flexibly applied to the design of other construction machines by changing and/or adding a few subprograms and the input data.