Experimental Study of Low-Speed Over-Rotating Steel Ball Oblique Collision

Collision problem is one of the most basic studies in mechanics. This paper aims are to study the characteristics of oblique collision between steel ball and steel plate under low-speed over-rotating (overspin) state and the expression of collision Coefficient of restitution through experiments. The phenomenon of low-speed and over-rotation is relatively common in particle system collisions and is often overlooked in research. Firstly, based on the designed multifunctional and complex multiphase dimensional collision test platform, the collision of steel balls with steel plates at different speeds and angular velocities at different angles cannot be ignored during collision. Based on this, the relationship between the physical quantities before and after the collision, the experimental testing methods of Newton's Coefficient of restitution (including tangential and normal) and energy Coefficient of restitution are studied; And compare it with the results of other authors to find the physical essence of the low-speed over-spin collision process.