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Testing machine for researching rubber ablation behavior of tire tread at moment of aircraft landing

A technology for tire treads and testing machines, which is used in chemical analysis using combustion, testing wear resistance, measuring devices, etc.

Active Publication Date: 2021-01-12
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, extreme working conditions such as high-speed friction, high impact load, and high temperature at the moment of landing of a large aircraft limit the above-mentioned research to carry out conditional simulation in small-scale tests and carry out related research.

Method used

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  • Testing machine for researching rubber ablation behavior of tire tread at moment of aircraft landing
  • Testing machine for researching rubber ablation behavior of tire tread at moment of aircraft landing
  • Testing machine for researching rubber ablation behavior of tire tread at moment of aircraft landing

Examples

Experimental program
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Effect test

Embodiment 1

[0123] When adopting natural rubber to be 100 parts, carbon black to be 50 parts, halloysite to be 5 parts, when adopting rubber grinding wheel as test grinding wheel, adopt above-mentioned testing machine to test, infrared temperature detector 50 detects rubber grinding wheel friction ablation The maximum temperature is 212°C, see Figure 8 a;

[0124] When using styrene-butadiene rubber as 100 parts, carbon black as 60 parts, and titanium dioxide as 3 parts, when using rubber grinding wheel as the test grinding wheel, the maximum temperature of rubber grinding wheel friction and ablation detected by infrared temperature detector 50 is 218 ° C, see Figure 8 b;

[0125] When using butadiene rubber as 100 parts, carbon black as 70 parts, and carbon nanotubes as 2 parts, when using rubber grinding wheel as the test grinding wheel, the maximum temperature of rubber grinding wheel friction and ablation detected by infrared temperature detector 50 is 202 ℃, see Figure 8 c.

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Abstract

The invention discloses a testing machine for researching the rubber ablation behavior of a tire tread at the moment of aircraft landing. The testing machine comprises a test bed, a main transmissionsystem, a friction system, a friction surface adjusting system, a radial impact system, a temperature control system, a visualization system and a signal acquisition and detection system. The workingcondition of the rubber grinding wheel in the friction system in the friction ablation test is changed through the main transmission system, the radial impact system, the friction surface adjusting system and the temperature control system, and the friction surface adjusting system simulates different pavement conditions contacted with the tire tread when an airplane touches the ground; real-timedata acquisition and monitoring are carried out on the friction ablation condition of the rubber tire tread in the friction system through the signal acquisition and detection system, and the data istransmitted to the computer through the data acquisition card for data processing and analysis so that the rubber friction ablation behavior test of the tire tread at the moment of aircraft landing iscarried out. The invention provides an effective test platform for researching the friction ablation behavior of the rubber tire under the instantaneous high-speed impact load.

Description

technical field [0001] The present invention relates to an experimental means and method for the friction and ablation behavior of tire tread rubber at the moment of aircraft landing at high speed, high impact, large load and high temperature, and in particular to a method for researching the ablation behavior of tire tread rubber at the moment of aircraft landing Testing Machine. Background technique [0002] Aviation tires are an important part of maintaining the safety of large aircraft. According to the statistics of the American Aviation Administration, more than 50% of aircraft crashes occur during takeoff and landing, and 80% of them are related to tires. Large aircraft aviation tires are faced with extremely complex working conditions during use: high speed (rated speed>300km / h), high load (rated load>20 tons), high inflation pressure (>1.5MPa) and large deformation (~ 35%). The ablation caused by the frictional temperature rise of the tire under this ext...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/307G01N31/12
CPCG01N3/307G01N3/56G01N31/12G01N2203/0005G01N2203/0048G01N2203/0222
Inventor 邓聪万乐李星宇赵海波王玉忠
Owner SICHUAN UNIV
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