Design of Lightweight and Highly Efficient Cassette System for Road Bicycle by Using Finite Element Analysis

Abstract:

This study was to accomplish a design process of 10-sp cassette system consisting of different material sprockets and a spider. Main purpose of this design was developing a lightweight and highly efficient cassette system for road bicycle. For this it is necessary to determine the materials and the shapes considering various important factors. Especially sprockets of 10-sp cassette system must become thinner than sprockets of low speed cassettes. Thus it is necessary to carry out a series of structural analyses so as to secure sufficient mechanical strength and rigidity. To verify the safety of this system, a series of finite element analysis was conducted under various boundary conditions. Single sprocket analysis and assembled parts separately were analyzed and compared each other. The analysis results were sufficiently satisfied. In fact how to manufacture the system must be considered.

• Periodical: Applied Mechanics and Materials (Volumes 271-272)
• Pages: 720-726
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.271-272.720
• Online since: December 2012
• Authors: Yong Seok Lim, Byeong Uk Song, Yong Wook Shin, Tae Il Seo
• Keywords: Cassette, Design, Finite Element Analysis (FEA), Road Bicycle, Sprocket

References

[1] W.H. Lai, C.K. Sung and J.B. Wang, Motion Analysis of A Bicycle Rear Derailleur During The Shifting Process, Mechanism and Machine Theory, Vol. 33, No. 4, PP. 365-367 (1998).

DOI: 10.1016/s0094-114x(97)00045-1

[2] T.Y. Lin and C.H. Tseng, Optimum Design For Artificial Nueral Networks: An Example In A Bicycle Derailleur System, Engineering Applications of Artificial Intelligence, Vol. 13, pp.3-14 (2000).

DOI: 10.1016/s0952-1976(99)00045-7

[3] W. Bertucci, F. Grappe, A. Girard, A. Betik and J.D. Rouillon, Effects On The Crank Torque Profile When Changing Pedalling Cadence In Level Ground And Uphill Road Cycling, Journal of Biomechanics, Vol. 38, pp.1003-1010 (2005).

DOI: 10.1016/j.jbiomech.2004.05.037

[4] G. Mornieux, K. Zameziati, E. Mutter, R. Bonnefoy and A. Belli, A Cycle Ergometer Mounted On A Standard Force Platform For Three-dimensional Pedal Forces Measurement During Cycling, Journal Of Biomechanics, Vol. 39, pp.1296-1303 (2006).

DOI: 10.1016/j.jbiomech.2005.03.020

[5] S. Yin and Y. Yin, Study On Virtual Force Sensing And Force Display Device For The Interactive Bicycle Simulator, Sensors and Actuators A, Vol. 140, pp.65-74 (2007).

DOI: 10.1016/j.sna.2007.06.018

[6] S. Thipprakmas, Improving Wear Resistance Of Sprocket Parts Using A Fine-Blanking Process, Wear, Vol. 271, pp.2396-2401 (2011).

DOI: 10.1016/j.wear.2010.12.015