CN-121997811-A - Method for detecting rubber tire based on flow state simulation

Abstract

The invention relates to the technical field of tire detection, in particular to a method for detecting rubber tires based on flow state simulation, which comprises the steps of obtaining information of the rubber tires to be detected, establishing a three-dimensional geometric model, determining a gridding processing method for the three-dimensional geometric model based on the complexity degree of the rubber tires in the three-dimensional geometric model, carrying out numerical simulation on discrete grids obtained after gridding processing by using Computational Fluid Dynamics (CFD) software, evaluating dynamic balance of the tires according to a plurality of parameters in the numerical simulation result, determining a data verification method for the result of the simulation data of the rubber tires of the batch based on fluctuation amplitude of the evaluation value of the dynamic balance of the tires of the batch in a preset period, and determining whether to adjust parameters in the process of detecting the rubber tires based on the matching degree of verification data and simulation data in the corresponding data verification method.

Inventors

• DING HAO
• YANG FENGRU
• CUI YING

Assignees

• 青岛科技大学

Dates

Publication Date

20260508

Application Date

20251231

Claims (10)

1. 1. The method for detecting the rubber tire based on the flow state simulation is characterized by comprising the following steps of: Acquiring rubber tire information to be detected, establishing a three-dimensional geometric model based on the rubber tire information, and determining a gridding processing method for the three-dimensional geometric model based on the complexity of the rubber tire in the three-dimensional geometric model, wherein the gridding processing method comprises a structured gridding processing method and an unstructured gridding processing method; performing numerical simulation on the discrete grid obtained after the meshing processing by using Computational Fluid Dynamics (CFD) software, and determining boundary conditions of a simulated flow field based on the working parameter requirements and the self parameters of the rubber tire; Evaluating the dynamic balance of the tire according to a plurality of parameters in the numerical simulation result, and determining a data verification method for the simulation data result of the tire of the batch based on the fluctuation range of the evaluation value of the dynamic balance of the tire of the batch in a preset period, wherein the data verification method comprises a sampling verification method and a centralized verification method; And determining whether to adjust parameters of the rubber tire detection process based on the matching degree of the verification data and the simulation data in the corresponding data verification method and the contour qualification degree of the rubber tire with the matching degree of the verification data and the simulation data smaller than the preset matching degree.
2. 2. A method for detecting a rubber tire based on a fluid simulation according to claim 1, wherein when determining a gridding processing method for the three-dimensional geometric model, comprising: Determining to process the three-dimensional geometric model by an unstructured gridding processing method according to a comparison result that the complexity degree of the rubber tire in the three-dimensional geometric model is larger than or equal to a preset complexity degree; and determining to process the three-dimensional geometric model by a structured gridding processing method according to a comparison result that the complexity of the rubber tire in the three-dimensional geometric model is smaller than a preset complexity.
3. 3. The method for detecting the rubber tire based on the fluid state simulation according to claim 2, wherein the complexity of the rubber tire in the three-dimensional geometric model is determined according to the number of contours of the rubber tire and the average curvature variation, and the preset complexity is determined according to the average value of the complexity of the rubber tire in the history detection process.
4. 4. A method for detecting a fluid state simulation-based rubber tire according to claim 3, wherein the step of numerically simulating the discrete grid obtained after the gridding process using Computational Fluid Dynamics (CFD) software comprises: introducing the discrete grids subjected to the gridding treatment into computational fluid dynamics software; defining a physical model in the computational fluid dynamics software; determining boundary conditions of the simulated flow field based on the working parameters of the rubber tire and the parameters thereof; setting the simulated parameters and tire conditions and starting numerical simulation calculations.
5. 5. The method for detecting a fluid state simulation-based rubber tire according to claim 4, wherein the step of evaluating the dynamic balance of the tire based on a plurality of parameters in the numerical simulation result comprises: acquiring a plurality of key parameters in a numerical simulation result; correspondingly analyzing the key parameters based on dynamic balance of the rubber tire; And calculating an evaluation value of dynamic balance of the rubber tire based on the plurality of key parameters.
6. 6. The fluid state simulation-based rubber tire testing method of claim 5, wherein when determining the data verification method for the fluid state simulation-based rubber tire testing method comprises: Determining simulation data results of the batch of rubber tires by a centralized verification method according to a comparison result that the fluctuation amplitude of the evaluation value of the dynamic balance of the rubber tires in a preset period is larger than or equal to the preset fluctuation amplitude; And determining the simulation data result of the batch of rubber tires by a sampling verification method according to the comparison result that the fluctuation amplitude of the evaluation value of the dynamic balance of the rubber tires in the preset period is smaller than the preset fluctuation amplitude.
7. 7. The method for detecting a rubber tire based on a fluid state simulation according to claim 6, wherein the selecting of the first preset number of rubber tires of the lot for continuous actual measurement verification is determined when the simulation data result of the rubber tires of the lot is verified by the centralized verification method, and the selecting of the second preset number of rubber tires of the lot for intermittent actual measurement verification is determined when the simulation data result of the rubber tires of the lot is verified by the sampling verification method.
8. 8. The fluid state simulation-based rubber tire testing method of claim 7, wherein determining whether to adjust the process parameters for the rubber tire testing comprises: According to the comparison result that the matching degree of the verification data and the simulation data in the corresponding data verification method is larger than or equal to the preset matching degree, the parameter adjustment of the rubber tire detection process is not required; And determining whether to carry out secondary judgment on the parameter adjustment of the rubber tire detection process according to the comparison result that the matching degree of the verification data and the simulation data in the corresponding data verification method is smaller than the preset matching degree.
9. 9. A method for detecting a rubber tire based on a fluid simulation as in claim 8, wherein when making a secondary decision as to whether to adjust a parameter of the rubber tire detection process comprises: Determining that parameters of the rubber tire detection process need to be adjusted according to the comparison result that the matching degree of the verification data and the simulation data is smaller than the preset matching degree and the contour qualification degree of the rubber tire is larger than or equal to the preset contour qualification degree; wherein the rubber tire detection process parameters comprise a preset fluctuation range and a preset complexity degree.
10. 10. The method for detecting a rubber tire based on fluid state simulation according to claim 9, wherein the adjustment amount of the preset fluctuation range and the matching degree of the verification data and the simulation data are in negative correlation, and the adjustment amount of the preset complexity degree and the matching degree of the verification data and the simulation data are in negative correlation, and the contour qualification degree of the rubber tire is smaller than the preset matching degree.

Description

Method for detecting rubber tire based on flow state simulation Technical Field The invention relates to the technical field of tire detection, in particular to a method for detecting a rubber tire based on flow state simulation. Background Rubber tires are important components of vehicles, the requirements of people on the performance and quality of the tires are higher and higher, the traditional detection method possibly has some limitations such as high cost, low efficiency and the like, the traditional tire test needs a large amount of time, manpower and material resources, the method based on flow state simulation can be performed on a computer, a large amount of experiment cost is saved, the efficiency is improved, and meanwhile, the method is more environment-friendly, but the traditional method for detecting the rubber tires based on flow state simulation has the problem that the establishment and calibration of models of the tires with complex structures are inaccurate, so that the prediction result is inconsistent with the actual situation. CN116818193a discloses a method for detecting dynamic balance of a tire, which relates to the field of sheet processing and comprises the following steps of detecting the flatness of the ground on which an automobile runs, detecting the dynamic balance of the tire on which the automobile runs, detecting the flatness of the ground on which the automobile runs, detecting the dynamic balance of the tire on which the automobile runs, determining whether the wheel deflects according to the two data, determining whether the reason of the wheel deflection is caused by the wheel itself or the road surface deflection, detecting the rotation angle of the tire, determining whether the error condition of the rotation angle of the tire occurs during the running of the plurality of wheels, determining the movement and state of the wheel according to the movement distance monitoring of the plurality of tires, and planning a proper running route according to the flatness of the ground and the dynamic balance state of the tire, so as to ensure that the measurement cannot aggravate the deflection of the tire due to running on an improper running route. Therefore, the prior art has the problem that the accuracy of detecting the rubber tire is low due to the fact that the flow state simulation process of the rubber tire is not controlled accurately enough. Disclosure of Invention Therefore, the invention provides a method for detecting a rubber tire based on flow state simulation, which is used for solving the problem that the accuracy of detecting the rubber tire is low due to insufficient control of the flow state simulation process of the rubber tire in the prior art. In order to achieve the above object, the present invention provides a method for detecting a rubber tire based on a fluid state simulation, comprising: Acquiring rubber tire information to be detected, establishing a three-dimensional geometric model based on the rubber tire information, and determining a gridding processing method for the three-dimensional geometric model based on the complexity of the rubber tire in the three-dimensional geometric model, wherein the gridding processing method comprises a structured gridding processing method and an unstructured gridding processing method; performing numerical simulation on the discrete grid obtained after the meshing processing by using Computational Fluid Dynamics (CFD) software, and determining boundary conditions of a simulated flow field based on the working parameter requirements and the self parameters of the rubber tire; Evaluating the dynamic balance of the tire according to a plurality of parameters in the numerical simulation result, and determining a data verification method for the simulation data result of the tire of the batch based on the fluctuation range of the evaluation value of the dynamic balance of the tire of the batch in a preset period, wherein the data verification method comprises a sampling verification method and a centralized verification method; And determining whether to adjust parameters of the rubber tire detection process based on the matching degree of the verification data and the simulation data in the corresponding data verification method and the contour qualification degree of the rubber tire with the matching degree of the verification data and the simulation data smaller than the preset matching degree. Further, the determining the gridding processing method for the three-dimensional geometric model comprises the following steps: Determining to process the three-dimensional geometric model by an unstructured gridding processing method according to a comparison result that the complexity degree of the rubber tire in the three-dimensional geometric model is larger than or equal to a preset complexity degree; and determining to process the three-dimensional geometric model by a structured gridding processing method accor