METHODS OF CERTIFICATION TESTING OF CAR WHEELS FOR FATIGUE AND SHOCK
Abstract
The strength of the wheels of motor vehicles (ATS) largely determines their safety. Numerous cases of road accidents, man-made accidents with severe consequences were caused by the destruction of the wheels of the PBX. In this connection automobile wheels are subjected to obligatory certification tests at different types of loadings, and their installation on the vehicle demands obligatory obtaining of the certificate of conformity. The source of destruction always are cracks appearing in the wheel of the car and quickly developing during overloads. Cracks can occur due to accumulation of fatigue damages and under impact of shock loadings. Thus, the destruction of the wheel occurs either when the resource is exhausted, or when exposed to overload. The behavior of the wheel under different types of loading depends on the design, material and manufacturing technology of the wheel. Thus, when designing wheels, it is important to consider all these factors. After the construction of the wheel are subjected to a bench test programme and conditions, applicable regulatory requirements and design analysis is usually performed by the so-called poster loading. These conditions are contained in various regulations, which are determined mainly by the purpose of the wheels. The article analyzes the existing methods of testing the wheels of cars for fatigue and impact.
References
1. GOST R 52390-2005.Transportnie sredstva. Kolesa diskovie Tekhnicheskie trebovaniya metodi ispitaniy (State standard p 52390-2005. Means of transport. The wheel disc. Technical requirements and test methods), Мoscow, Gosstandart, 2007, 30 p.
2. GOST R 50511-93. Kolesa iz legkih splavov dlia pnevmaticheskih shin Obschie tecknicheskie uslovia (State standard P 50511-93. Light alloy wheels for pneumatic tyres. General specifications), Мoscow, Gosstandart, 1993.
3. EK OON. Pravila124. Edinoobraznie predpisaniya, kasaushiesya utvergdenia koles dliay legkovih avtomobiley i ih pricepov (E/ECE/324, E/ECE/TRANS/505, Rev.2/Add.123) (UN / EC. Rules 124. Uniform provisions concerning the approval of wheels for passenger cars and their trailers (E / ECE / 324, E / ECE / TRANS/ 505, Rev.2/Add.One hundred twenty three)).
4. Dinamika sistemy doroga – shina – avtomobil' – voditel' (Dynamics of the road – rail – car – driver), Moscow, Mashinostroenie, 1976, 535 p.
5. Rajmpel' I. Shassi avtomobilya. Amortizatory, shiny i kolesa (Car chassis: shock Absorbers, tires and wheels), Moscow, Mashinostroenie, 1986, 320 p.
6. Vakhromeyev A.M. Avtomobil'. Doroga. Infrastruktura, 2015, no. 2 (4), pp. 5.
7. Vakhromeyev A.M. Avtomobil'. Doroga. Infrastruktura, 2015, no. 3 (5), pp. 1.
Review
Views:
608
