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Noise of a bicycle planetary gear system

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 41 Issue 2 Page 217-223
published_at 1991-03
KJ00000156836.pdf
[fulltext] 484 KB
Title
自転車用遊星歯車変速機の騒音
Noise of a bicycle planetary gear system
Creators Hidaka Teruaki
Creators Ishida Takeshi
Creators Wang Hongyou
Source Identifiers
Planetary gear systems are very compact and efficiently transmit large amounts of power. Their advantages have resulted in the recent use of such systems on bicycles. However, since planetary gear systems are also complicated mechanisms with many elements, noise and vibration have been found to hamper their use. Therefore, it is desired that noise from bicycle planetary gear systems be reduced. Experiments to measure noise produced by a planetary gear system installed on a bicycle are undertaken. It is revealed that noise levels increase as gear mesh frequency increases and that the main frequency component of the sound is the natural frequency of the casing surrounding the planetary gear system. Recommendations for reducing noise are to reduce the number of gear teeth and improve the casing of the system.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1991-03
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部