Metrikine A.V.


Resonance in the elastic guide - moving oscillator system


Acoustical Physics 40(6), 864-868, 1994


Summary. The uniform motion of an oscillator along the Euler-Bernoulli beam on an elastic foundation is considered. It is assumed that a constant force acts upon the oscillator in the vertical direction, pressing it against the beam, and the oscillator velocity exceeds the minimum phase velocity of the bending waves in the beam. The effect of the waves, generated by the oscillator and reflected form a fixation point, on the oscillations is analyzed. It is shown that the amplitude of the oscillations depends in a resonance manner on the velocity of motion. The higher the eigenfrequency of the oscillator, the more powerful is the resonance.