Abstract
The paper presents a mathematical model for changing the technical condition of the ball joint of automotive vehicles. A design scheme is proposed, and assumptions and limitations for a mathematical model are determined. During the work, experimental and theoretical studies were carried out. To assess the reliability of the results obtained by theoretical methods, an experimental study was carried out on the developed installation using vibration methods. It has been found that in order to correctly measure vibration acceleration in the ball joint, it is sufficient to use a single vibration sensor «ДH-3» in contact with the test sample parallel to the longitudinal axis of the ball pin. The comparison of curves of vibration acceleration dependence on the value of axial gap during mathematical modeling and experimental study showed that the largest divergence between them does not exceed 10%. This confirms the adequacy of the developed mathematical model of the change in ball joint technical condition and its compliance with the conditions of bench research.
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