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凸輪在高速运動時,不管在工作行程或者空回行程中,等加速等減速运動凸輪有它特有的优點;因为在同一時間內,被動件所能達到的速度最大,而加速度为最小,所引起的慣性力也最小,因此,頗能大大地減小了凸輪与被動件的衝擊力。不过,等加速运動凸輪的曲线,对运動规律的敏感性很大;同時,它的製造很难精確,因此往往不能得到所需要的运動規律。圓弧凸輪虽然在理論上与等加速运動凸輪曲線有誤差;伹因它的製造很容易精確,能够更正確地代替了等加速运動凸輪,并已被廣泛地应用,因此,簡化它的計算公式,实具有实用的意义。
When the cam is moving at a high speed, it has its own unique advantages, such as accelerating and decelerating moving cams, whether in the working stroke or in the idle stroke. Because at the same time, the passive element can reach the maximum speed and the acceleration rate is the minimum, Of the inertia force is also the smallest, therefore, quite able to greatly reduce the impact of the cam and the passive components. However, accelerating the motion of the cam curve, the movement of the law is very sensitive; the same time, it is difficult to manufacture accurate, it often can not get the required movement law. Although the arc cam theoretically has the same error as the isokinetic cam curve, it has been widely used because it is easy to manufacture and can replace the isokinetic cam more correctly. Therefore, its calculation formula is simplified , It has practical significance.