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Optimal Design of Bicycle Frame parameters Considering Biomechanics

Chinese Journal of Mechanical Engineering 2011年第1期24卷 141-145页

作者： XIANG Zhongxia XU Ruifen BU Yan WU Xiaofan School of Mechanical Engineering Tianjin University Tianjin 300072 China School of Electromechanical Engineering Guangdong University of Technology Guangzhou 510006 China

With the development of technology and the change of market demands,the trend in middle and high grade bicycle manufacturing is developed toward small-volume,multi-species,and customer-oriented ***,human element should be fully considered in design so that the bicycle has the best cycling performance for the specific ***,customized design is difficult to achieve since feature parameters of the rider are not included in the *** design of bicycle frame is the most important in bicycle *** relative positions among the saddle,handlebar and central axis are defined as the bicycle three-pivot,they are the main parameters in bicycle frame *** conventional bicycle design,frame parameters are merely relevant to bicycle *** the basis of the principles of biomechanics and ergonomics knowledge,this paper presents a design method for bicycle three-pivot considering feature parameters of the rider by dynamic ***,a dynamic model of rider-bicycle system is built for a special rider,and a serial of simulation experiments is designed by uniform test ***,a mathematical model is built between the three-pivot position and the square of lower limb muscle stress by using simulation and regression analysis of the rider-bicycle *** optimal three-pivot position parameters are obtained by setting the minimal of the square of the lower limb muscle stress as the ***,the optimal parameters are gained for the specific ***,various results are gained for different riders based on the same design *** function between feature parameters of the rider and the optimum three-pivot position parameters is built by *** design considering biomechanics can be divided into three main steps：calculating the three-pivot position,designing the geometrical structure of the bicycle frame and analyzing frame strength,and selecting appropriate parts and assembling the *** des

关键词： bicycle design biomechanics muscle fatigue feature parameters of the rider

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