Research On Different Tire Blow-out Affects On Resonance Frequency Of The Whole Vehicle

As to the study of traffic accidents caused by tire blow-out gradually thorough and thedrivers’ reaction to the accidents, researchers found that reaction timelessly or falsely is themain cause. Therefore, reduce drivers’error reaction can be an effective measure to ensure thesafety of the car which has blowout.On the one hand, research pointed that the comfort of the vehicle directly affects thedrivers to the operation of the car, the professor Manfred Mitschke notes in the book "vehicledynamics" that the lower inherent frequency of the car can effectively improve the comfort, aflat tire will affect the resonance frequency of the vehicle to a certain extent.On the other hand, because the study of the car flat tire on at home and abroad is mainlyon how to prevent the wheel flat tire and the vehicle steering stability study after tire blowout,people set up various model to have simulation study, but there is few study on the influenceof the wheel flat tire to the vehicle resonance frequency. In order to solve this situation, basedon the existing flat tire model and vehicle wheel vehicle model, using Matlab simulatedifferent kinds of situations after the wheel flat tire, and analysis them. Mainly includes thefollowing content:Through Matlab simulating different natural frequency of car body beats, body roll, pitch,the left front wheel beating, the right front wheel beating, left rear wheel beating, right rearwheel beating and after it the corresponding data and different suspension in the wheel flattire in Bode diagram analysis summary.