Restitution coefficient of various particles based on acoustic technology

Abstract The restitution coefficient is used to characterize the energy loss in particle impact, which an important parameter for discrete element simulation and mechanical system motion analysis. However, of many materials needs be determined, key material properties affecting are still unclear. In this paper, acoustic frequency sampling method was study coefficients 10 representative particles. effects density specific strength on relationship between damping were investigated. results show that inversely proportional except aluminium. not significant.