Investigation of the Amplitude-Frequency Response of a Dam-Type Viscoelastic Body With Steady-State Forced Harmonic Vibrations

The article discusses the amplitude-frequency response of a viscoelastic body dam type, under steady-state forced harmonic vibrations. An important factor is determination number frequencies and resonance peaks that arise in process effect water on dam. use finite element method (FEM) for numerical solution dynamic problems allows, by expanding terms eigenmodes frequencies, to reduce original problem system separated linear integro-differential equations with respect sought parameters generalized functions. influence properties material curves loads different at dimensions foot investigated. analysis responses dam-type body, oscillations, showed occurrence depends main occur less than sixth eigenfrequency, as result which further increase expansion does not introduce any significant changes amplitude distribution