Squeal Noise - Long Time Examination of Stochastically Occurrence on Tramways passing Curves

摘要

In the last years exactly parametrically examination on squeal noise has demonstrated that there are a lot of factors of influence. In this paper we will demonstrate, that also stochastically occurrence has an influence of the sound emission of a track curve. Observations in a track curve during one year show that the frequency of noise emission under same conditions don't achieve exactly comparable results. So we say that there is only a limited probability depending on the different parameters that squeal noise is appearing or is not. Otherwise we found that the curve is squealing, but there is no typical situation for the appearance of squeal noise. We will present results within variable trams and weather parameters on the same curve. At the end we will compare our observations at another type of tram curve.