Parameter estimation fitting extrapolation based on the measured load of special vehicle swing arm
Based on the measured load data of the swing arm of special vehicle,the two-dimensional load spectrum of the real swing arm is obtained by compiling the measured signals.The fitting extrapolation analysis of parameter estimation is conducted on the load spectrum of the measured special vehicle swing arm,confirming the amplitude-frequency follows Weibull distribution rather than lognormal distribution,and the mean-frequency follows positive distribution.Compared with the measured signals,our study shows the fitting extrapolation results of parameter estimation are within a reasonable error range.The predicted extreme value and frequency are closer to the measured values,validating the huge potential of the parameter estimation extrapolation method on special vehicles.
special vehiclesload spectrum preparationparameter estimation extrapolationdistribution fitting
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