Experimental and theoretical determination of the parameters of a two-mass oscillatory system
Abstract
Experimental and theoretical determination of the parameters of a two-mass oscillatory system
Incoming article date: 03.10.2021When designing vibration machines and calculating their dynamic models, great difficulties are encountered. The presence of contacts of the working body with the medium significantly complicates the determination of the dynamic and kinematic parameters of the oscillatory system. This is due to the fact that different layers of the vibrated medium have different vibration amplitudes, therefore it is necessary to introduce the concept of "mass attachment", which is, as it were, rigidly attached to the working body and vibrates with its amplitude. It is difficult to determine the coefficients of elastic and dissipative resistance of the elements of the oscillatory system. The authors propose an experimental-theoretical method for determining all parameters of an oscillatory two-mass system with two degrees of freedom, which can be easily extended to more complex linear dynamical systems.
Keywords: vibration machines, vibrating system, road-building machines, free vibrations, phase-frequency response