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| Поле | Співвідношення |
| Title | Determination of the Characteristics of Viscous Friction in Sliding Bearings |
| Names |
Dykha, A.
Makovkin, О. |
| Date Issued | 2017 (iso8601) |
| Abstract | The methods of determining the friction characteristics on the basis of experimental studies using the damped oscillations of the pendulum have been analyzed. It is established that in existing approaches, the results of experimental studies do not always match theoretical models. In this work, we solved the problem of constructing a theoretical model of the pendulum in the sliding bearings with lubricant and on its basis to suggest methods of determining the characteristics of friction: the coefficient of energy absorption by friction and the coefficient of fluid friction - viscosity. It is shown that for a pendulum in lubricated sliding bearings, the process of oscillation is described by the differential equation of the second order with viscous resistance which is proportional to the velocity of deviation of the pendulum. On the basis of the exact solution, it is shown that the ratio of adjacent amplitudes of the damped oscillations is constant, which implies the constancy of the absorption coefficient on the whole process of oscillations. On the basis of the theoretical model of the oscillations of the pendulum it has been obtained that for the viscous friction the coefficient of absorption is exactly equal to twice the logarithmic decrement of damping and is determined by one at a time or a cycle of oscillation. The procedure for determining the dynamic viscosity. |
| Genre | Стаття |
| Topic | sliding bearing |
| Identifier | Dykha A. Determination of the Characteristics of Viscous Friction in Sliding Bearings / A. Dykha, O. Makovkin // Proceedings of the 9th International Conference on Tribology (BalkanTRib’17), 13-15 September 2017. - Cappadocia, TURKEY, 2017. |