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Forecasting the number of failures of the steering system components with the use of the grey system theory method

Kądziołka Tomasz, Opoka Kazimierz

Zeszyty Naukowe. Transport / Politechnika Śląska

2021

z. 112

85--97

Steering systems are one of the most important components of a car and have a direct impact on safety and driving comfort. Therefore, high reliability is required of them. One of the methods of object reliability estimation may be the grey system theory. This method can be used not only to calculate the number of failures, but also to calculate the wear of mating parts, and the vibrations of engines and rolling elements. This work presents the use of the grey system theory for the examination of motor vehicle steering system reliability. The forecast number of failures was calculated for the various components of the steering system and the grey system accuracy was assessed. This is aimed at finding out how useful this theory is for forecasting the number of steering system failures.

Modelling accuracy of a car steering mechanism with rack and pinion and McPherson suspension

Knapczyk J., Kucybała P.

International Journal of Applied Mechanics and Engineering

2016

Vol. 21, no. 3

751--759

Modelling accuracy of a car steering mechanism with a rack and pinion and McPherson suspension is analyzed. Geometrical parameters of the model are described by using the coordinates of centers of spherical joints, directional unit vectors and axis points of revolute, cylindrical and prismatic joints. Modelling accuracy is assumed as the differences between the values of the wheel knuckle position and orientation coordinates obtained using a simulation model and the corresponding measured values. The sensitivity analysis of the parameters on the model accuracy is illustrated by two numerical examples.

Analysis of local vibrations in a vehicle

Wojsznis M.

Vibrations in Physical Systems

2012

Vol. 25

447--452

The paper presents a problem of local vibrations in a vehicle as one of physical factors occurring at the driver’s place. Influence of tires used in a car on local vibrations generated in a steering mechanism has been considered here. The analysis of local vibration hazards was carried out based on experimental results published in [1]. The measurement results obtained for five types of tires differing, among other things, from one another in tread depth, degree of wear and use were analyzed. The analysis has revealed significant influence of tires on the level of local vibrations transmitted through the steering mechanism into driver’s hands.