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本文对用于传统自行车的一种新型驱动系统进行了可靠的研究,它涉及到设计一种非圆前链轮,从而使机械功率输出最大。脚蹬自行车系统从原来的五杆物理模型被模拟为一个等效的连杆机构与传统的连杆机构相比有两方面不同:用以模拟人腿部的铰链不是真正的销铰;连杆机构中的连杆的长度随着曲柄转角变化。在此基础上,深刻地作了所提出驱动系统的运动学和动力学分析,推导了这种新型驱动系统中腿部所产生的铰链力矩的计算公式,并与传统的圆链轮驱动系统作了比较。
In this article, a reliable study of a new drive system for conventional bicycles involves the design of a non-circular front sprocket to maximize mechanical power output. The pedal bike system is modeled as an equivalent linkage mechanism from the original five-bar physical model in two ways compared to a conventional linkage: the hinge used to model the human leg is not a true pin hinge; the link The length of the connecting rod in the mechanism varies with the crank angle. On this basis, the kinematics and dynamics analysis of the proposed drive system are profoundly made, and the formulas for calculating the hinge moment generated by the legs in this new drive system are deduced. Compared with the traditional circular drive system A