DEVICE AND METHOD FOR EVALUATION OF DYNAMIC STATES OF WORKING MEMBERS OF VIBRATION PROCESS MACHINES Russian patent published in 2024 - IPC G01H1/00 

FIELD: vibrometry.

SUBSTANCE: invention can be used for primary assessment of dynamic states of working members of vibration process machines. Device and method consists in the fact that a measuring device is fixed on an object for evaluation of a dynamic state. Device is formed by transparent housing with external fasteners, two internal brackets, to which on elastic elements a solid-state inertial element is suspended with a coordinate system applied along its length with the origin at the center of gravity, ends of which are equipped with rollers, with rims located inside guides, providing vertical movements and three vibration markers located at points of attachment of elastic elements to brackets and in their middle point. In process of controlled object oscillations the inertial element performs forced steady-state oscillations under action of kinematic disturbances from the side of brackets fixed on the body. Under certain dynamic conditions on the inertial element there is a node of oscillations—a point, amplitude of oscillations of which is equal to zero or significantly less than amplitudes of oscillations of end points. Based on the experimentally established coordinates of the vibration node located on the inertial element and the vibration amplitudes of the three control points, in which the vibration markers are located, using formulas, connectivity and frequency of forced oscillations of the controlled object are determined.

EFFECT: simplified design, possibility to assess dynamic state of controlled object, and determination of essential characteristics in form of coefficient of connectivity and frequency of oscillations.

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