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Design method of tire outer contour structure for reducing tire wind resistance

A design method and outer contour technology, applied in tire parts, design optimization/simulation, computer-aided design, etc., can solve the problems of limited design of tire outer contour structural parameters, test plan, low improvement efficiency, etc., to avoid blindness Sexual issues, shortening the design cycle, and improving efficiency

Pending Publication Date: 2020-05-15
JIANGSU UNIV
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Problems solved by technology

[0004] At present, scholars at home and abroad focus on the improvement of the tire outer profile structure to find the best performance program from many test programs as an improvement program, or just analyze the influence of a single design parameter on the tire outer profile parameters, which leads to In the improvement process, the selection of tire outer profile structural parameters is limited by the designed test plan, and there are great uncertainties and blindness, which will also cause problems such as low improvement efficiency. Therefore, there is an urgent need for a method that can effectively reduce Design Method of Tire Outer Contour Based on Tire Aerodynamic Resistance

Method used

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  • Design method of tire outer contour structure for reducing tire wind resistance
  • Design method of tire outer contour structure for reducing tire wind resistance
  • Design method of tire outer contour structure for reducing tire wind resistance

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0051] like figure 1Shown, a kind of design method of the tire outline structure that reduces tire wind resistance comprises the following steps:

[0052] Step 1, set up initial tire model, draw the three-dimensional model of tire according to the initial value of the outer contour parameter of selected tire type; Present embodiment is example with the tire of 185 / 65R15 type tire, and its tread width is 185mm, and section height is 121mm. According to the upper sidewall height H = 57.06mm, the driving surface width L 2 =67.61mm, shoulder transition radius R=35.87mm, tread arc radius R 1 =817.391mm, R2=327.83mm is established in CATIA as figure 2 The 3D model of the tire shown.

[0053] Step 2, building an initial tire wind resistance calculation model, constructing a tire wind resistance calculation model according to the three-dimensiona...

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Abstract

The invention discloses a design method of a tire outer contour structure for reducing tire wind resistance. The method comprises the following steps: step 1, establishing an initial tire model; step2, constructing an initial tire wind resistance calculation model; step 3, designing a test scheme; step 4, constructing a function relationship between a tire outer contour parameter and an aerodynamic resistance coefficient value thereof according to test data in the step 3, and verifying the precision of the function relationship; step 5, obtaining tire outer contour parameters when the aerodynamic resistance coefficient value is minimum by adopting an optimization algorithm. The method has the beneficial effects that the blindness problem existing in the structural design of the outer contour of the tire can be effectively avoided, so that the design period is shortened, the efficiency is improved, and meanwhile, a certain guiding effect on the improvement of the wind resistance performance of the tire is also achieved.

Description

technical field [0001] The invention relates to a design method of a tire outer contour structure, in particular to a design method of a tire outer contour structure capable of reducing tire wind resistance, and belongs to the technical field of tires. Background technique [0002] As global warming, energy shortages and other issues become more serious, the world pays more and more attention to environmental protection. As a travel tool, automobiles will surely become an important part of energy conservation and emission reduction. Major car companies urgently need to work hard to improve the energy efficiency of vehicles to Solve the environmental protection problems of automobiles. When a car is running at high speed, the fuel consumption rate caused by aerodynamic resistance can account for more than 50%, while the aerodynamic resistance caused by the wheels accounts for about 25% of the whole vehicle. Therefore, how to form an efficient low-drag tire design method and ...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/15G06T17/00G06F119/14
CPCG06T17/00Y02T90/00B60C99/006G06F30/28G06F2111/10G06F2113/08G06F30/15G06F30/17G06F2111/08G06F30/10
Inventor 周海超姜震夏琦翟辉辉陈青云王国林
Owner JIANGSU UNIV
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