Method for measuring stress and strain of inflated all-steel radial tire
A radial tire, stress-strain technology, applied in the direction of inflation pressure measurement, force/torque/power measuring instrument, measuring device, etc., can solve the problem of difficulty in real stress measurement and analysis, and achieve the effect of simple method and high accuracy
Pending Publication Date: 2022-05-17
SHENYANG HEPING ZIWUXIAN TIRE MFG CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a method for measuring the stress and strain of an all-steel radial tire after it is inflated, so as to solve the difficult problem of measuring and analyzing the real stress of the tire during actual use
Method used
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[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] A method for measuring stress and strain after inflation of an all-steel radial tire, the method comprising:
[0037] Cut the tire, and polish the cut section to be smooth and flat; the tire needs to be parked for more than 24 hours after vulcanization before measurement. Locations where tires are cut include:
[0038] From the top of the shoulder to the end of the third belt layer, the width is 50mm;
[0039] The extension line from the bottom of the shoulder to the end point of the second belt layer extends 10mm from the carcass to the sidewall surface;
[0040] The cutting position of the bead is the 180° posit...
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The invention belongs to the field of all-steel radial tires, and particularly relates to a method for measuring stress and strain of an all-steel radial tire after inflation, which comprises the following steps of: cutting the tire, and polishing the cut section to be smooth and flat; after the parking time is up, a datum line is marked on the section, and the tires are inflated and parked according to the standard air pressure conditions of 100 kpa, 300 kpa and 600 kpa; after the tire is inflated to the specified air pressure every time, the tire is parked, and the parking time is 30 minutes to 1 hour; and obtaining the stress change of the tire according to the calculated data according to the circumferential movement distance W of the belted layer before and after deformation of the reference line, the thickness H of the intermediate rubber, the radial stretching distance L of the unit rubber length and the unit rubber length I. The method is simple and high in accuracy, and reflects the real stress condition of the tire.
Description
technical field [0001] The invention belongs to the field of all-steel radial tires, and specifically relates to a method for measuring stress and strain of an all-steel radial tire after inflation. Background technique [0002] As an important part connecting the car and the road, the tire is a key factor affecting the handling stability and safety of the car. The mechanical properties of the tire are closely related to the above performance. Traditional tire mechanics research is only based on empirically accumulated model conjectures, which do not necessarily reflect the real stress of the tire. Therefore, it is necessary to study the real stress measurement and analysis method of the tire in the actual use process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for measuring the stress and strain of an all-steel radial tire after it is inflated, so as to solve the difficult problem of measuring and ...
Claims
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IPC IPC(8): G01L17/00G01L5/00G01B21/32
CPCG01L17/005G01L5/00G01B21/32
Inventor 高崧曲晓光张畔杨大伟
Owner SHENYANG HEPING ZIWUXIAN TIRE MFG CO LTD