Asymmetrical Hysteresis Modelling Based on Grey Savitzky-Golay Filter for Rubber Hinge on Thrust Rod of Commercial Vehicle[J]. 2019, 53(5): 82-91+99.
DOI:
Asymmetrical Hysteresis Modelling Based on Grey Savitzky-Golay Filter for Rubber Hinge on Thrust Rod of Commercial Vehicle[J]. 2019, 53(5): 82-91+99.DOI: 10.7652/xjtuxb201905012.
Asymmetrical Hysteresis Modelling Based on Grey Savitzky-Golay Filter for Rubber Hinge on Thrust Rod of Commercial Vehicle
The description of complex asymmetric and nonlinear hysteresis characteristics of the rubber hinge on commercial vehicle thrust rod is directly related to the accuracy of vehicle modeling and performance simulation. According to the principle of force decomposition
the hysteresis force is decomposed into generalized nonlinear elastic force and damping force. The equivalent linear damping model and piecewise linear damping model
the asymmetric Bouc-Wen model and the high-order polynomial model are employed to model the hysteresis nonlinearity of a rubber ball hinge. The grey correlation degree index is introduced to improve the Savitzky-Golay filter algorithm
and the filter parameters are optimized using cuckoo search algorithm to filter the hysteresis characteristic data collected from experiments. The parameters of each model are identified based on the goal of minimizing the sum of squared errors between the filtered data and the simulation values of each hysteresis model. The results show that the proposed grey Savitzky-Golay filtering method has a good smoothing effect
and the grey correlation degree of the data before and after filtering is large than 0.8; while the asymmetric Bouc-Wen hysteresis characteristic model has relatively high accuracy and low complexity
and the modeling error is below 10%. This research may provide reference for nonlinear hysteresis modeling
data filtering and denoising of the rubber components in vehicles and other mechanical devices.
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