Protector Wear Forecasting on Elastic Characteristics of Tires
- PDF / 613,930 Bytes
- 5 Pages / 612 x 792 pts (letter) Page_size
- 53 Downloads / 163 Views
ector Wear Forecasting on Elastic Characteristics of Tires V. N. Zadvornova, E. V. Balakinab, *, **, and N. A. Mishenkova aDmitrov
Institute of Continuing Education, Branch of Dubna State University, Dmitrov, Moscow oblast, 141800 Russia b Volgograd State Technical University, Volgograd, 400005 Russia *e-mail: [email protected] **e-mail: [email protected] Received October 16, 2019; revised April 24, 2020; accepted April 29, 2020
Abstract—The results of bench and road tests of three tire variants with size 11/70R22.5 are presented: the no. 1 model of Russian production and two foreign tires of models no. 2 and no. 3. The relationship between the elastic properties of tires and their wear is established. The dependences of the wear rate on the ratio of the normal elastic coefficient to lateral are obtained. The dependences are designed to predict tire wear in the design modeling of tires and the trajectory of vehicles. Keywords: tire, wear rate, ratio of normal elastic coefficient to lateral, relationship DOI: 10.3103/S1068366620040145
INTRODUCTION Tires are an expensive assembly for vehicles: cars, buses, airplanes, motorcycles, and trailers. When creating tires, their manufacturers strive to simultaneously ensure a number of their important properties: coupling, elasticity in different coordinates, strength, weight, and reliability, which includes performance, durability, maintainability, and longevity [1–5]. The durability of tires is determined by their wear resistance and affects their service life and, accordingly, the cost of operating a vehicle. Designers must find a compromise between wear resistance and tire grip properties, since natural materials provide high grip properties for tires with a supporting surface but wear out quickly; this is the opposite case for synthetic materials. The elastic properties of tires with similar designs also depend on the materials used. When modeling the properties of tires [4, 6–9] at their design stage, as well as during design modeling of vehicle trajectories, it is highly desirable to have universal dependences linking different properties of the tires to enable optimization procedures. This study is dedicated to finding the relations between the wear rate and the elastic properties of tires. Objective—to study the interrelation between wear and the elastic properties of tires and to obtain universal dependences of the wear rate on the ratio of the coefficient of normal stiffness to lateral stiffness.
eral, tangential (longitudinal), torsional, and angular. They are interrelated and are determined by the tire strength properties [4]. The main stiffnesses that determine the basic operational properties of a wheeled vehicle—stability of motion, handling, braking dynamics—are normal and lateral. They correspond to normal and lateral deformations of tires and determine the parameters of the withdrawal of the elastic wheel and the place of application of reactions at the spot of contact between the tire and a solid supporting surface [6].
MATERIALS AND METHODS The
Data Loading...
