Effects of Frictional Loss on Bicycle Chain Drive Efficiency-Reference-Cited by-同舟云学术

Effects of Frictional Loss on Bicycle Chain Drive Efficiency

Published:1999-06-01 Issue:4 Volume:123 Page:598-605
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Spicer James B.¹,Richardson Christopher J. K.¹,Ehrlich Michael J.¹,Bernstein Johanna R.¹,Fukuda Masahiko²,Terada Masao²

Affiliation:

1. The Johns Hopkins University, 3400 N. Charles St., Room 102, Maryland Hall Baltimore, MD 21218

2. Shimano Inc. Product Engineering Division, Sakai Osaka 590-77 Japan

Abstract

Chain drive efficiency has been studied to understand energy loss mechanisms in bicycle drive trains, primarily for derailleur-type systems. An analytical study of frictional energy loss mechanisms for chain drives is given along with a series of experimental measurements of chain drive efficiency under a range of power, speed and lubrication conditions. Measurements of mechanical efficiency are compared to infrared measurements indicating that frictional losses cannot account for the observed variations in efficiency. The results of this study indicate that chain tension and sprocket size primarily affect efficiency and that non-thermal loss mechanisms dominate overall chain drive efficiency.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/123/4/598/5758357/598_1.pdf

Reference11 articles.

1. Vogwell, J., 1994, “Chain Drives,” Rotary Power Transmission Design, K. Hurst ed., McGraw-Hill Europe, pp. 79–95.

2. Tordion, G. V., 1996, “Chains,” Mechanical Design Handbook, H. A. Rothbart ed., McGraw Hill, pp. 25.1–25.12.

3. Hollingworth, N. E., and Hills, D. A., 1986, “Forces in Heavy-Duty Drive Chain during Articulation,” Proc. Inst. Mech. Eng. 200, No. C5, pp. 367–374.

4. Hollingworth, N. E., and Hills, D. A., 1986, “Theoretical Efficiency of Cranked Link Chain Drive,” Proc. Inst. Mech. Eng. 200, No. C5, pp. 375–377.

5. Keller, J. , 1983, “Der Wirkungsgrad im Fahrradantrieb,” Radmarkt, No. 12, pp. 71–73.

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