Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)

As the small-sized high speed diesel engine used for construction machinery and generator is operated under continuous heavy load condition, a gear train is employed to drive the fuel injection pump and valve train. When a loading torque is small at the idling condition, the gear tooth separation an...

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Autores principales: Kazuhide OHTA, Koichiro IKEDA, Takaya FUTAE
Formato: article
Lenguaje:EN
Publicado: The Japan Society of Mechanical Engineers 2014
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Acceso en línea:https://doaj.org/article/50db17d0e9284e1c8f40edacfde38e2c
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spelling oai:doaj.org-article:50db17d0e9284e1c8f40edacfde38e2c2021-11-26T06:12:42ZStudy on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)2187-974510.1299/mej.2014dr0053https://doaj.org/article/50db17d0e9284e1c8f40edacfde38e2c2014-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/1/5/1_2014dr0053/_pdf/-char/enhttps://doaj.org/toc/2187-9745As the small-sized high speed diesel engine used for construction machinery and generator is operated under continuous heavy load condition, a gear train is employed to drive the fuel injection pump and valve train. When a loading torque is small at the idling condition, the gear tooth separation and impact are caused by the fluctuating torque and they increase the engine noise level. Particularly when the torsional vibration of the crankshaft occurs and its rotational amplitude is magnified at a specified rotational speed, the gear impact is intensified and it leads to increase of engine noise. Author has developed the theoretical procedure using FEM, modal analysis technique and BEM to predict the vibratory response and radiated noise of the engine block coupled with the rotating crankshaft and gear train shafts which drives the fuel injection pump and valve system. This method is applied to reveal the effect of torsional vibration of crankshaft on the gear impact force and engine noise of the four-stroke four-cylinder engine. Countermeasure to reduce vibration and noise by changing the location of the gear train from pulley side to flywheel side of the crankshaft is evaluated and its result indicates the prospects which can reduce the radiated noise from the engine block.Kazuhide OHTAKoichiro IKEDATakaya FUTAEThe Japan Society of Mechanical Engineersarticleinternal combustion enginevibrationnoisemodal analysisfembemMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 1, Iss 5, Pp DR0053-DR0053 (2014)
institution DOAJ
collection DOAJ
language EN
topic internal combustion engine
vibration
noise
modal analysis
fem
bem
Mechanical engineering and machinery
TJ1-1570
spellingShingle internal combustion engine
vibration
noise
modal analysis
fem
bem
Mechanical engineering and machinery
TJ1-1570
Kazuhide OHTA
Koichiro IKEDA
Takaya FUTAE
Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
description As the small-sized high speed diesel engine used for construction machinery and generator is operated under continuous heavy load condition, a gear train is employed to drive the fuel injection pump and valve train. When a loading torque is small at the idling condition, the gear tooth separation and impact are caused by the fluctuating torque and they increase the engine noise level. Particularly when the torsional vibration of the crankshaft occurs and its rotational amplitude is magnified at a specified rotational speed, the gear impact is intensified and it leads to increase of engine noise. Author has developed the theoretical procedure using FEM, modal analysis technique and BEM to predict the vibratory response and radiated noise of the engine block coupled with the rotating crankshaft and gear train shafts which drives the fuel injection pump and valve system. This method is applied to reveal the effect of torsional vibration of crankshaft on the gear impact force and engine noise of the four-stroke four-cylinder engine. Countermeasure to reduce vibration and noise by changing the location of the gear train from pulley side to flywheel side of the crankshaft is evaluated and its result indicates the prospects which can reduce the radiated noise from the engine block.
format article
author Kazuhide OHTA
Koichiro IKEDA
Takaya FUTAE
author_facet Kazuhide OHTA
Koichiro IKEDA
Takaya FUTAE
author_sort Kazuhide OHTA
title Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
title_short Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
title_full Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
title_fullStr Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
title_full_unstemmed Study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (Effect of the torsional vibration of crankshaft)
title_sort study on the noise and vibration of engine block coupled with the rotating crankshaft and gear train (effect of the torsional vibration of crankshaft)
publisher The Japan Society of Mechanical Engineers
publishDate 2014
url https://doaj.org/article/50db17d0e9284e1c8f40edacfde38e2c
work_keys_str_mv AT kazuhideohta studyonthenoiseandvibrationofengineblockcoupledwiththerotatingcrankshaftandgeartraineffectofthetorsionalvibrationofcrankshaft
AT koichiroikeda studyonthenoiseandvibrationofengineblockcoupledwiththerotatingcrankshaftandgeartraineffectofthetorsionalvibrationofcrankshaft
AT takayafutae studyonthenoiseandvibrationofengineblockcoupledwiththerotatingcrankshaftandgeartraineffectofthetorsionalvibrationofcrankshaft
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