There are numerous non-smooth factors in railway vehicle systems, such as flange impact, dry friction, creep force, and so on. Such heavily affect the dynamical behavior of systems. In this paper, we investigate mathematically analyze double grazing bifurcations wheelset systems with contact. Two types models impact considered, one is a rigid model other soft model. First, derive Poincaré maps ...

Railway wheelsets are the key to ensuring safe operation of trains. To achieve zero-defect production, railway equipment manufacturers must strictly control every link in wheelset production process. The press-fit curve output by assembly machine is an essential indicator wheelset’s quality. operators will still need manually and individually recheck curves our practical case. However, there ma...