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32 Development of Silent Chain Drive System for Motorcycles
Published October 29, 2002 by Society of Automotive Engineers of Japan in Japan
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Examining the noise reduction of a motorcycle, the requirement of an effective method of reducing a drive chain noise has been a pending issue similarly to noise originating from an engine or exhaust system, etc. Through this study, it became clear that the mechanism of chain noise could be classified into two; low frequency noise originated from cordal action according to the degree of chain engagement and high frequency noise generated by impact when a chain roller hits sprocket bottom. An improvement of urethane resin damper shape, mounted on a drive side sprocket, was effective for noise reduction of the former while our development of a chain drive that combined an additional urethane resin roller with an iron roller worked well for the latter. The new chain system that combined this new idea has been proven to be capable of reducing the chain noise to half compared with a conventional system. In the analysis, a new chain-separated test equipment has been effectively used since it was known that the chain-separated test equipment attached to a rear wheel reproduces the chain noise of a running motorcycle faithfully.
|Technical Paper||SILENT CHAIN DRIVE FOR CAM AND ACCESSORY SHAFTS|
|Technical Paper||Tooth Profiles of the Sprockets of the Chain-Wave Transmission|
|Technical Paper||Pitch Line Design for Noncircular Chain Drive|
CitationSUGITA, H., SEKITA, M., and FUSE, T., "32 Development of Silent Chain Drive System for Motorcycles," SAE Technical Paper 2002-32-1801, 2002.
- Nakagome Mawataka Safe roller chain design Tokyo, Yokendo 1989 111
- Shimura Yukio Mechanical element application manual for chains Tokyo Industrial Research Institute Co. Ltd. 1995 242