Stability is a key factor for the operation safety of railway vehicles, while current work employs linearized and simplified wheel/rail contact to study bifurcation mechanism assess stability. To stability characters under real nonlinear contact, fully parameterized vehicle wheelset model built. In modeling, geometry nonlinearities wheel rail profiles come from field measurements, including rol...

scheduling has become an attractive area for artificial intelligence researchers. on other hand, in today's real-world manufacturing systems, the importance of an efficient maintenance schedule program cannot be ignored because it plays an important role in the success of manufacturing facilities. a maintenance program may be considered as the heath care of manufacturing machines and equip...

The study objective is to examine new methods of restoring the axis neck locomotive driving wheel. To achieve goal, task was set and solved reduce hydrogen concentration in during its manufacture repair by means appropriate technology. fulfill this task, following research are carried out, that vacuum thermal exposure, wear determination, diffuse siliconization, definition concentration. scient...