Optimal Design and Dynamic Simulation of Mountain Bike with Rear Suspension

作者：Bu Yan; Xiang Zhongxia^*; Huang Tian; Zhang Xu; Wang Xinghua

来源：Chinese Journal of Mechanical Engineering (english Edition), 2009, 22(1): 21-26.

DOI：10.3901/CJME.2009.01.021

• mountain bike
• model building
• dynamic simulation
• experiment test
• vibrant comfort
• optimal design

This paper investigates the dynamic design methodology of mountain bikes with rear suspension. Firstly, a multi-rigid body dynamic model of rider and mountain bike coupled system is constructed. The rider model includes 19 skeletons, 18 joints and 118 main muscles. Secondly, to validate the feasibility of the model, an experiment test is designed to reflect the real cycling status. Finally, aiming at enhancing the performance of the rider vibration comfort, the scale parameters of rear suspension are optimized with computer simulation and uniform design. The mathematical model in the vibration performance and the design variables is constructed with regression analysis. The result shows that when the length of side link is 90 mm, the length of connected rod is 336.115 1 mm and the included angle between absorber and side link is 60 degrees, the mountain bike has better vibration comfort. This study and relevant conclusions are of practical importance to the design of the mountain bike's rear suspension system.

• 出版日期2009-2
• 单位天津大学