Axle coupling vibration analysis method and system based on time-history array interactive iteration

The invention relates to the technical field of axle coupled vibration analysis, in particular to an axle coupled vibration analysis method based on time-history array interactive iteration, which comprises the following steps: analyzing a bridge subsystem based on an ANSYS platform to obtain a bridge initial response time-history array; the ANSYS platform and the MATLAB platform share data, the MATLAB platform analyzes the vehicle subsystem, and an equivalent pavement unevenness time history array is obtained according to the obtained bridge initial response time history array; and carrying out coupling analysis on the bridge subsystem and the vehicle subsystem, and obtaining the vibration response of the bridge and the vehicle according to the equivalent pavement unevenness time-history array. Data sharing between MATLAB and ANSYS is utilized to analyze the vehicle subsystem and the bridge subsystem, and then coupling analysis is carried out on the vehicle subsystem and the bridge subsystem to obtain vibrat