http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
한진혁(Jin-Hyuk Han),이영대(Young-Dae Lee),황도인(Do-in Hwang),김은영(Eun-Yeong Kim) 한국소음진동공학회 2016 한국소음진동공학회 학술대회논문집 Vol.2016 No.4
The Tires, the first parts of the vehicles exposed to the road surface, affect various performances such as the ride comfort, the safety, and the directional stability. Recently, there has been a recent increase of interests in eco-friendly vehicles in accordance with recent environmental regulations, so the factors of fuel efficiency and pass-by noise of the tires are becoming more important. In this paper, we will focus on the method of prediction on radiated noise, affecting pass-by noise, using the suspension and wheels of the vehicles.
타이어 패턴의 종그루브 인자에 따른 그루브 원더링 및 소음 특성 연구
한진혁(Jin-Hyuk Han),황성욱(Sung-Wook Hwang),강용구(Yong-Gu Kang),한민현(Min-Hyeon Han) 한국기계가공학회 2011 한국기계가공학회지 Vol.10 No.5
Water on a road surface can lower the coefficient of friction of vehicle tires and it involves lots of risks. One way to prevent water from staying is to cut many “rain grooves” into the edges of the pavement parallel. Such grooves, however, can exert unwanted side forces, particularly on passenger tires, which cause “Groove Wander” making the drivers uncomfortable. The “Groove Wander” is somewhat related to vehicle geometry, but is more strongly related to interaction between road grooves and tire tread's longitudinal grooves. This thesis tries to examine principles to estimate “Groove Wandering” effect focusing on the design of longitudinal groove. Additionally, it studied how to reduce pipe resonance longitudinal grooves form in the contact patch.
이영대(Young-Dae Lee),한진혁(Jin-Hyuk Han),황도인(Doin Hwang) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
Currently Car and Tire noise is important because of environment problem. Car and Tire Company effort to reduce the noise. Generally Tire noise is divided in Road Noise and Pattern Noise. Pattern Noises is having a Pattern Block Vibration, Air-Pumping Noise and Pipe Resonance Noise. This paper is focusing on noise simulation about Pipe Resonance noise. Finite Element Method and Boundary Element Method have been used to simulation of noise radiation. Each method have advantage and disadvantage. In the past years Every methods was improved. This paper is introducing each method. This paper is study about prediction method of pipe resonance noise simulation using Automatically Matched Layer method of FEM.
황도인(Doin Hwang),한진혁(Jin-hyuk Han),이영대(young-dae Lee) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
This study presents the analysis process for the structural vibration noise simulation using simple pattern tire. The analysis process is largely consists of two steps: structural analysis, noise analysis. Structural analysis includes static/dynamic analysis and vibration mode analysis. The deformed tire shape is converted to noise analysis model. And the results of vibration mode are used for a boundary condition of structural vibration noise analysis through the modal superposition method. A frequency response analysis and noise analysis are carried out by using an additional air model and various boundary conditions. The steps of the process which are pattern tire modeling, boundary condition, noise modeling and simulation are compared with test. In the future, the analysis process will be upgraded by a improvement research such as DB building with road types and actual pattern tire noise analysis.