Abstract
The camber and cornering properties of the tire directly affect the handling stability of vehicles, especially in emergencies such as high-speed cornering and obstacle avoidance. The structural and load-bearing mode of non-pneumatic mechanical elastic (ME) wheel determine that the mechanical properties of ME wheel will change when different combinations of hinge length and distribution number are adopted. The camber and cornering properties of ME wheel with different hinge lengths and distributions were studied by combining finite element method (FEM) with neural network theory. A ME wheel back propagation (BP) neural network model was established, and the additional momentum method and adaptive learning rate method were utilized to improve BP algorithm. The learning ability and generalization ability of the network model were verified by comparing the output values with the actual input values. The camber and cornering properties of ME wheel were analyzed when the hinge length and distribution changed. The results showed the variation of lateral force and aligning torque of different wheel structures under the combined conditions, and also provided guidance for the matching of wheel and vehicle performance.
Highlights
The development of automobile industry greatly driven the growth of tire industry
The learning ability and generalization ability of the established mechanical elastic (ME) wheel neural network model were verified by comparing the input and output characteristics of the training samples and non-training samples
It is proved that the neural network model has high accuracy in the prediction of the camber and cornering properties of the ME wheel
Summary
With the continuous improvement of people’s requirements for safety, handling and comfort when driving a car, the performance matching requirements of the tire and the whole vehicle are increasingly strict, especially the safety performance of the tire. There are many risk factors such as puncturing, deflating and blowout in the driving process of vehicles equipped with traditional pneumatic tires.[1,2] it is an important research trend to develop a safe, comfortable and economic safety tire.
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