Research on Rigid-Flexible Coupling Dynamics Simulation of Austempered Ductile Iron Spoke Wheel
Wheelset is one of core components of the railway vehicle bogie.The quality reduction of the of the wheel can effectively improve the wheel-rail work condition and reduce the wheel-rail interaction force.It also can improve the stability,safety and comfort of the vehicle system.In this paper,a new type of wheel composed of double-layer hollow spoke structure and ADI material developed by NICHST,China,is taken as the research object.The rigid-flexible body coupling dynamic model of single bogie is established by SIMPACK software.The wheel-rail lateral force,wheel-rail vertical force,frame lateral vibration acceleration,derailment coefficient and wear coefficient of traditional rolled steel wheel and new ADI wheel are compared and analyzed.The work condition is considered as straight line,transition curve and constant curve.The results show that the indexes of wheel-rail lateral force,frame lateral vibration acceleration and derailment coefficient of the new ADI wheel are close to the traditional wheel and meet the requirements of GB/T 5599-2019 standard.The vertical force of wheel-rail,vibration at low frequency and wheel wear coefficient are improved.
aube ductile iron wheelswheel-rail interactionrigid-flexible coupling dynamicsdynamics simulation
NETL
NSTL
万方数据
