Method for designing triangular rubber core structure of tire

Abstract

The invention discloses a method for designing the triangular rubber core structure of a tire. Analysis parameters such as the minimum value of the maximum main strain, the maximum value of the minimum main strain and a strain energy density change cloud chart of a tire triangular rubber core area are taken as the basis. On the basis of finite element analysis, a boundary line of an upper triangular rubber core and a lower triangular rubber core of the tire is obtained according to an equidistant median line method. A preliminary scheme is obtained, then the preliminary scheme is verified andanalyzed according to interpolation and iterative optimization ideas, and an optimal triangular rubber core structure design scheme is obtained. The mechanical property of the triangular rubber core of the radial tire designed on the basis of the method in the scheme is remarkably improved. The durability of the tire can be effectively improved, and the strain energy of the tire and the temperature in a driving process are reduced. The delaminating phenomenon of the triangular rubber core of the tire due to heat generation is effectively prevented. The design method is reliable in principle and convenient to implement and popularize. The structural design efficiency of designers can be effectively improved. A large number of manpower and material resources are saved. The method has important guiding significance for improving the structural performance of the tire.

Description

technical field [0001] The invention belongs to the technical field of tire structures, and in particular relates to a method for designing a tire apex structure. Background technique [0002] With the rapid development of the automobile industry, the automobile industry has higher and higher requirements on the mechanical properties and quality of tires. Since the advent of the radial tire, it has become a mainstream product in the tire industry due to its unique structure, safety, comfort, wear resistance and low rolling resistance. At the same time, in order to meet the different driving conditions of the vehicle, The construction of radial tires has also gradually become more complex. [0003] In the daily use of radial tires, various sidewall cracks and tire blowouts often occur, ring durability, crown durability, and delamination of the tire's upper and lower apex cores. Since the lower half of the tire apex is in direct contact with the inner side of the carcass, th...

AI Technical Summary

Problems solved by technology

For example, structural designers design based on past experience or with reference to the structural parameters of competing tires. During the design process, structural designers will design multiple schemes, then process tire molds to produce prototypes, and conduct indoor and outdoor tests. Select the best tire mechanical performance scheme from the schemes. However, usually the schemes provided by the structural designers do not necessarily contain the optimal structural schemes, resulting in mostly unsatisfactory mechanical performance results of the selected schemes. In the design of new specifications, it is powerless

Obviously, the traditional design method is time-consuming and labor-intensive, and when developing new specifications, the tire apex structure with optimal tire mechanical properties is often not obtained

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