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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.
박운환(Un-Hwan Park),송윤철(Yoon-Chul Song) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.4
In the beginning of vehicle development, it is difficult to define the concept of engine mounting system. With only the property of vehicle, we have to find the direction of engine mounting system. And it is important to find common mounts for several engine variation in order to reduce the cost and manage mounts efficiently. This paper introduces the software which has developed for engine mounting system analysis. And its function and usefulness are explained in paper. The examples have correlated between the analysis model and real model to raise the accuracy during development of engine mounting system are shown in paper.
박운환(Un-Hwan Park),오상흔(Sang-Hun Oh),송윤철(Yoon-Chul Song),김정훈(Jeong-Hoon Kim),김장호(Jang-Ho Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Engine Mount plays an important role which supports engine, isolates vibration from engine and blocks the vibration from road. Nowadays Active engine mounting system is studied for vibration and noise reduction of vehicle according to driving condition. This paper shows the development of active damper actuator using DFSS(Design For Six Sigma). technique. The product developed by advanced technology was benchmarked and analyzed. CTQ(Critical to Quality) is actuator force. Parameter value is optimized for it with Taguchi method. At that time, the commercial software of magnetic analysis was used for design. The developed active damper is small compared to benchmarked sample. But the force is bigger than that. it was verified with experiment.
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.