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SUV 차량의 리어 디퍼런셜 마운트 시스템 최적화 연구
박철(Cheol Park),송윤철(Yoon Chul Song),박운환(Un Hwan Park) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Differential mount system has been one of the major systems which contribute to interior Booming noise in SUV 4WD vehicle. The low frequency booming noise generated from differential mount system was identified due to propeller shaft unbalance force and differential system resonance. In order to find the cause of Booming noise, multi body simulation model of differential mounting system including hydraulic mount modeling was made and correlated simulation model with test results. By system simulation, optimal mounting system was presented to reduce noise and vibration. Simulation result is verificated by vehicle test.
박운환(Park, Un-Hwan),송윤철(Song, Yoon-Chul) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.3
Engine Mount plays an important role which supports engine, isolates vibration from engine and blocks the vibration from road. Development of engine mount for NVH costs great a deal. So, the cost of development being reduced, the way developed effectively engine mount using DFSS technique is proposed in this paper. CTQ(critical to quality) is vibration and parameter is dynamic stiffness of mounts. The core parameters are selected with TPA(transfer path analysis) technique. It uses design of experiments(DOE) or Taguchi Methods to optimize parameter values and reduce variation. And then, this paper shows the result of improvement for vibration in the developing vehicle.
이한동(Lee, Han-Dong),곽문규(Kwak, Moon-K.),김정훈(Kim, Jeong-Hoon),송윤철(Song, Yoon-Chul),심재호(Shim, Jae-Ho) 한국소음진동공학회 2009 한국소음진동공학회 논문집 Vol.19 No.8
This research is concerned with the application of the active linear actuator to the active vibration control of structure. The active linear actuator will be mounted on the sub-frame so that it can cancel the excitation transferred from the engine. Accelerometer mounted on the sub-frame detects the vibration and its signal is fed into the DSP controller where the control algorithm is installed. The output of the DSP controller is connected to the driver which amplifies the DSP output. In general, the pulse width modulation power amplifier is used to drive the voice-coil type actuator. This study shows the dynamic characteristics of the active linear actuator and active vibration control experimental results.