Machines. Technologies. Materials.
Vol. 19 (2025), Issue 9, pg(s) 332-338

TECHNOLOGIES

Amortization systems for objects with discrete switching of parts of a viscтoelastic element in a douffing type oscillator

  • 1 Aircraft and Rockets Production Chair Оmsk state technical University, Russia

Abstract

In order to enhance the efficiency of oscillation damping, the viscoelastic element in a Duffing-type system is divided into parts, with discrete commutation occurring four times per period between them. It has been demonstrated that the enhancement of oscillation energy dissipation is achieved through mass transfer between the parts. The influence on the equivalent coefficients of the solution parameters has been analyzed. 3D surfaces of the dissipated energy and equivalent coefficients have been constructed as functions of amplitude, mass ratio of the parts, and tension. It has been shown that discrete commutation allows for obtaining a hyperbolic type of frequency dependence of the aperiodicity coefficient, reaching values of 0,4..0,6 in the resonance zone.

Keywords

References

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