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양현섭(Hyun Sup Yang),권대복(Dae Bok Kwon),조경석(Kyung Seok Cho),이창하(Lee Chang Ha) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This paper presents noise reduction FCEV (Fuel Cell Electric Vehicle) turbo type Air Blower. Noise of centrifugal air blower consists of the aerodynamic noise , resonance of the rotor, electromagnetic noise of a motor, bearing failure noise. Conducted test and analysis in order to improve the noise of the initial sample was measured. Through the test, rotor resonant mode, rotor unbalance, case resonance, and bearing problems as the cause of the noise was classified. Have found ways to resolve the problem, improved designs were considered and through the test, verify improved design.
육지용(Yook, J.Y.),양현섭(Yang, H.S.),이창하(Lee, C.H.),조경석(Cho, K.S.),김광일(Kim, K.I.),권혁률(Kwon, H.R.),박용선(Park, Y.S.) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.7
This paper presents dynamic analysis of FCEV(fuel cell electric vehicle) turbo blower. To analyze the dynamic characteristics of turbo blower, FEA(finite element analysis) and experimental test are performed. Evaluations of stress safety for rotor sleeve and impeller due to rotational force and shrink fit are performed. Rotor dynamic analysis is conducted by Campbell diagram and structure vibration analyses are performed using FEA and experimental test. Through these results, noise sources of turbo blower are verified.
육지용(Yook Ji Yong),양현섭(Yang Hyun Sub),이창하(Lee Chang Ha),조경석(Jo Kyung Suk),박용선(Park Yong Sun),권혁률(Kwon Hyuk Ryul) 한국소음진동공학회 2010 한국소음진동공학회 학술대회논문집 Vol.2010 No.10
This paper presents dynamic analysis of FCEV (Fuel Cell Electric Vehicle) Turbo Blower. To analyze the dynamic characteristics of Turbo Blower, finite element model which consists of solid elements is constructed. Evaluation of stress for safety of rotor sleeve due to centrifugal force, Shrink fit analysis in maximum rotation speed is performed. Rotor dynamic analysis of Turbo blower is conducted using Campbell diagram and FEA (Finite element analysis) results are compared with experimental results to evaluate of validity of finite element model. To evaluate of Structure vibration characteristics, Modal analysis and forced vibration analysis are performed through FEA and experiment.