THE DYNAMIC STUDY OF AN ASSEMBLY CAM ─ SPRING
The purpose of the present paper consists in highlighting of the higher order accelerations that occur in the oscillatory motion of a spring as well as in the rotational motion of a cam, both of them part of a cam and follower mechanism. The cam is acted by means of an electrical engine, the rotational motion of the cam being the source of the oscillatory motion performed by the spring. Because the higher order accelerations are characteristic to sudden motions, this paper will demonstrate that the perturbing force applied to the spring as well as the torque are both characterized by a variation law with respect time. The study conducted on the accelerations of higher order will be accomplished by the instrumentality of polynomial interpolation functions of higher order. The results will have at basis, in the future papers, measurements performed on the spring and cam which consists in determining the linear velocity of the spring and of the linear velocity of a point from the circular cam ring periphery respectively.
Key words: mechanics, kinematics, cam and spring, advanced notions, dynamics equations.
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