The Study On The Wheel Shaft Vibration Effected By The Tire Inflation Pressure

This paper collected a great deal of the domestic and international automobile tire technique data, comprehensive comment current the development trend and dynamic states of the tire air pressure monitor system, and further discuss the structure and the mechanics characteristics of the tire and both of interaction and inside contact. On this foundation, carried on the contrast to the static characteristic and the dynamic characteristics of the automobile tire again, especially deeply analyze and discuss the roll stiffness, the damping characteristic to the tire and the tires no-line mechanics characteristic of the roll stiffness. According to the above-mentioned theories, synthesize to study the vibration characteristic of the tire suspension system, and the applied mathematics regression means independently deduce the automobile axle system calculation formula of the proper frequency. Announce the function between the relation on vibration frequency and the tire air pressure thoroughly.This text on the foundation of the above theories analysis, further applying the sensor technique and test means, design the test panel with the latest calculator G language LabVIEW, carried on experimental research and arguments of the vibration effect that the tire air pressure produced. Take the HFJ1010 minibus as the experiment object, compared the test with the automobile suspension frequency on carrying on the drop out test and the drive random vibration test under different air pressure, and obtain the relation of the tire air pressure with intrinsic frequency. Indicated from the experimental research result, the automobile suspension frequency in the gravity function is slightly higher than frequency of the suspension in the free appearance.This text research completely on the tire air pressure to vibrate the influence of the characteristic to the wheel and the suspension, thorough a great deal of experiment and theories studies, providing the beneficial theories the reference for the safety of automobile and monitor system of the tire air pressure.