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一、自行车车体和骑车人,是被主动后轮带动的,他们平动的规律跟主动轮质心运动规律相同主动轮的质心就是组成车体一部分的车轴。因此研究自行车动力的问题,实质可以归属研究主动轮纯滚动的动力学问题,只不过要将车体和骑车人的质量,算在车轮平动的质量里,好象车体和骑车人的质量,集中在后轮质心上似的。二、自行车轮胎充足气情况取后轮、车体和骑车人研究,受力见图1。设:车体和骑车人总质量为M,车轮质量m,车
First, the bicycle body and the cyclist, is driven by the active rear wheels, and their laws of translation with the same principle of the active wheel center of mass The center of gravity of the driving wheel is the axle that forms part of the bodywork. Therefore, the study of the problem of bicycle dynamics, in essence, can be attributed to the dynamic problem of the active rolling wheel pure rolling, but to the quality of the body and the rider in the translational quality of the wheel, as if the body and the rider The quality, concentrated in the rear center of mass. Second, the condition of bicycle tires sufficient gas to take the rear wheel, body and rider study, force shown in Figure 1. Set: the total mass of the body and the rider M, the wheel quality m, car