The invention relates to an active suppression control method for
mechanical vibration of a railway vehicle, which comprises the following steps of: acquiring vibration signals of a vehicle body
chassis, a
bogie frame and a wheel set axle box in real time through a
sensor array, and generating a vibration
data set through filtering and
noise reduction; performing multi-degree-of-freedom
coupling feature analysis on the
data set based on a vibration analysis model, and extracting vibration
coupling features of vehicle body vertical bending,
bogie snaking oscillation and wheel set
torsional resonance modes; generating a vibration intensity trend matrix through time-frequency
conjoint analysis, and indicating the vibration
intensity change of each component in real time; when the vibration intensity exceeds the limit, parameters of a
damper, a vibration absorber and an
actuator are dynamically adjusted, and a vibration suppression
instruction set is generated; and finally, the actuating mechanism is driven to cooperatively suppress the multi-
mode coupling vibration. According to the method, the composite
vibration problem of vehicle body shaking,
bogie buffeting and wheel rail
impact under the high-speed working condition is solved, and therefore the vibration suppression real-time performance and the cooperative control precision are improved.