Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics

Recently, increased user demand for quiet vehicle environments has resulted in the need to develop low-noise gears that do not generate noises that are harsh on to the human aural. The principal method for reducing meshing transmission error has been to gear design with as many teeth as possible. Ho...

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Main Authors: Takayuki ARARAGI, Yasuhiro UENISHI, Toshiki HIROGAKI, Eiichi AOYAMA
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2008-04-01
Series:Journal of Advanced Mechanical Design, Systems, and Manufacturing
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jamdsm/2/2/2_2_203/_pdf/-char/en
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author Takayuki ARARAGI
Yasuhiro UENISHI
Toshiki HIROGAKI
Eiichi AOYAMA
author_facet Takayuki ARARAGI
Yasuhiro UENISHI
Toshiki HIROGAKI
Eiichi AOYAMA
author_sort Takayuki ARARAGI
collection DOAJ
description Recently, increased user demand for quiet vehicle environments has resulted in the need to develop low-noise gears that do not generate noises that are harsh on to the human aural. The principal method for reducing meshing transmission error has been to gear design with as many teeth as possible. However, while these design methods have focused on decreasing gear noise, they have not considered the relationship between gear noise and the background noise of vehicle interiors. In fact, it would appear that no research considering the human aural characteristics associated with gear noise under these conditions has been conducted to date. Furthermore, the problem of gear noise on background noise in vehicle has increased as the use of hybrid engine technology in vehicle has become more pervasive in recent years. The proposed technique for reducing gear noise involves gear design that frequency control of gear noise by changing the number of teeth. The technique described here considers human aural limit and the influence of masking, and how these are affected by the tooth settings of low noise gear. This was achieved by assessing human aural characteristics in the unique acoustic environment of the vehicle interior. Then, the relationship between the number of teeth and the sound pressure level of gear noises was investigated. It was found that the proposed method of varying the number of teeth was effective for designing gears with optimal human aural characteristics.
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spelling doaj.art-2467548e82c84a11af5091326cf1c9542022-12-22T00:56:29ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542008-04-012220321310.1299/jamdsm.2.203jamdsmDesign Method of Number of Teeth for Low Noise Gears Considering Human Aural CharacteristicsTakayuki ARARAGI0Yasuhiro UENISHI1Toshiki HIROGAKI2Eiichi AOYAMA3Department of Engineering, Doshisha UniversityJATCO Ltd.Department of Engineering, Doshisha UniversityDepartment of Engineering, Doshisha UniversityRecently, increased user demand for quiet vehicle environments has resulted in the need to develop low-noise gears that do not generate noises that are harsh on to the human aural. The principal method for reducing meshing transmission error has been to gear design with as many teeth as possible. However, while these design methods have focused on decreasing gear noise, they have not considered the relationship between gear noise and the background noise of vehicle interiors. In fact, it would appear that no research considering the human aural characteristics associated with gear noise under these conditions has been conducted to date. Furthermore, the problem of gear noise on background noise in vehicle has increased as the use of hybrid engine technology in vehicle has become more pervasive in recent years. The proposed technique for reducing gear noise involves gear design that frequency control of gear noise by changing the number of teeth. The technique described here considers human aural limit and the influence of masking, and how these are affected by the tooth settings of low noise gear. This was achieved by assessing human aural characteristics in the unique acoustic environment of the vehicle interior. Then, the relationship between the number of teeth and the sound pressure level of gear noises was investigated. It was found that the proposed method of varying the number of teeth was effective for designing gears with optimal human aural characteristics.https://www.jstage.jst.go.jp/article/jamdsm/2/2/2_2_203/_pdf/-char/engear noiselow-noise gearfrequency controlgear designhuman aural characteristics
spellingShingle Takayuki ARARAGI
Yasuhiro UENISHI
Toshiki HIROGAKI
Eiichi AOYAMA
Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
Journal of Advanced Mechanical Design, Systems, and Manufacturing
gear noise
low-noise gear
frequency control
gear design
human aural characteristics
title Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
title_full Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
title_fullStr Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
title_full_unstemmed Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
title_short Design Method of Number of Teeth for Low Noise Gears Considering Human Aural Characteristics
title_sort design method of number of teeth for low noise gears considering human aural characteristics
topic gear noise
low-noise gear
frequency control
gear design
human aural characteristics
url https://www.jstage.jst.go.jp/article/jamdsm/2/2/2_2_203/_pdf/-char/en
work_keys_str_mv AT takayukiararagi designmethodofnumberofteethforlownoisegearsconsideringhumanauralcharacteristics
AT yasuhirouenishi designmethodofnumberofteethforlownoisegearsconsideringhumanauralcharacteristics
AT toshikihirogaki designmethodofnumberofteethforlownoisegearsconsideringhumanauralcharacteristics
AT eiichiaoyama designmethodofnumberofteethforlownoisegearsconsideringhumanauralcharacteristics