Experimental evaluation of brake shoes for railway vehicles using AE method (3rd report)

Abstract

Using an acoustic emission (AE) method which utilizes the phenomenon of releasing the elastic energy stored inside as elastic waves when the material is deformed or fractured, full-scale dynamo bench testing of brake shoes for railway vehicles was carried out, and the correlation between the elastic waves and the friction characteristics of brake shoes was evaluated experimentally. In particular, we focused on the relationship between elastic waves and wear. In this paper, we report on the discovery of AE method for evaluating the amount of wear on brake shoes.