TECHNIQUE FOR PROCESSING ACCELEROMETER SIGNALS IN THE IMPACT INTERACTION OF SOLID BODIES
L. V. Gorodilov, V. G. Kudryavtsev, A. I. Pershin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Percussion device, body, striker, acceleration, displacement, zero shift during impact interaction
Abstract
A technique for studying the movement of the body of a percussion device under the action of a shock load is presented, during which its displacement was recorded simultaneously with an accelerometer and a displacement sensor. The results of double integration of acceleration and their comparison with the displacement recorded by the displacement sensor are presented. The incorrectness of the acceleration graphs of the body displacements in amplitude and direction obtained with double integration of oscillograms is noted. When displacing along the ordinate axis of the first half-wave of the acceleration oscillogram recorded upon impact, it is possible to significantly improve the integration result. The value of displacement is selected in such a way that displacement of the body after the end of striker impact remains unchanged.
|
