Dynamic analysis of elastic rubber tired car wheel breaking under variable normal load

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Fedotov, A.I.^1 ; Zedgenizov, V.G.^1 ; Ovchinnikova, N.I.^2

Irkutsk National Research Technical University, 83 Lermontov St., Irkutsk

664074, Russia^1

Irkutsk State Agrarian University, Molodezhny St., Irkutsk District, Irkutsk

664038, Russia^2

关键词: Calculation models;    Dynamic characteristics;    External force;    Load variations;    Mathematical simulations;    Mechanical systems;    Phase-frequency characteristics;    Schematic structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/8/082017/pdf
DOI  :  10.1088/1755-1315/87/8/082017

来源: IOP

【 摘 要 】

The purpose of the paper is to analyze the dynamics of the braking of the wheel under normal load variations. The paper uses a mathematical simulation method according to which the calculation model of an object as a mechanical system is associated with a dynamically equivalent schematic structure of the automatic control. Transfer function tool analyzing structural and technical characteristics of an object as well as force disturbances were used. It was proved that the analysis of dynamic characteristics of the wheel subjected to external force disturbances has to take into account amplitude and phase-frequency characteristics. Normal load variations impact car wheel braking subjected to disturbances. The closer slip to the critical point is, the higher the impact is. In the super-critical area, load variations cause fast wheel blocking.