adhesion level for the proper running of rail wheelset on track is crucial problem in detecting slippage to avoid accidents. the slippage of rail wheels has been observed applying forward and lateral motions to slip velocity and torsion motion. the longitudinal and lateral forces behavior is watched with respect to traction force to note correlation based on angle of attack. the deriving torque...

The article analyzes the motion of a wheelset along path unequal length with shaft wear rails. authors have studied influence an external disturbing force on parametric system “wheel-rail”. considered problem is solved basis mathematical model interaction pair wheels and rail, taking into account additive effect stiffness rail vehicle. It shown that elasticity track in longitudinal direction al...

the conventional method towards deriving schedule for a fleet of ships to minimize cost alone has the short-coming of not addressing the problem of operation revenue losses associated with delays during maintenance at ships dockyards. in this paper, a preventive maintenance schedule for a fleet of ships that incorporates op-portunity cost is presented. the idea is to assign a penalty cost to al...

Purpose: The conduction of experimental studies in the conditions locomotive depot, transition to mathematical modeling wheel-motor block for diagnostics position, not allowing disassembly, traction electric motor bearings. Methods: Diagnostic complexes determine technical state depots. In order approaches choice and evaluation power source parameters vibroacoustic blocks depot analysis designi...