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채창국(Chang-Kook Chae),강구태(Koo-Tae Kang) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_3
It is sometimes not easy to determine physical modes of complex system such as automotive powertrnin by EMA(Experimcntal Mode Analysis). The procedure of EMA and several methods for validation of the EMA result are introduced briefly in this paper. And then, the methods are applied for some EMA results of the automotive powertrnin to determine physical modes.
유성기어세트의 소음 진동 거동에 대한 해석 및 실험적 연구
이현구(Lee, Hyun-Ku),강구태(Kang, Koo-Tae) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.3
In this paper, Verification of the qualitatively identical relationships existing between simulation data and experimental results allowed for a new analysis procedure of a planetary gear set -- in an automatic transmission -- to be conducted. Tooth profiles were found to be crucial to the gear mesh forces of the planetary gear set. Based on Kahraman's Model, dynamic resonances of the planetary gear set were found to be out of operating range. Most importantly, a 2DPLANETARY FEM program, an innovative design tool for planetary gear sets, was utilized.