ABSTRACT
The structural scheme of a vibration stand, with an unbalanced inertia drive for testing of dampers with nonlinear viscous friction, is presented. The research is based on the minimization of the root mean square error obtained during simulation and the actual piecewise nonlinear dissipative characteristic of the damper. For the known characteristic of the damper and the inertial parameters of the vibration stand, optimum conditions of perturbation are provided, which are characterized by minimal force and the frequency of rotation of the unbalanced mass and also correspond to the restriction on the acceleration of the damper’s working part. The design, force, and power characteristics of the low-frequency resonance vibration stand’s drive are calculated. Simulation of the vibration stand dynamics was performed, and kinematic, force, and power dependencies were obtained, in accordance with which, the conditions of the functioning of the vibration stand correspond to the realized damping characteristic of the tested object.
