Abstract
Abstract
In this paper, the dynamic stability of a pulsating fluid transport viscoelastic pipe under transverse vibration in the supported case is investigated, and a new variable-length beam element taking into account the beam rotation effect is proposed, which incorporates Kelvin-type viscoelastic intrinsic relations to describe the material properties of the beam-type pipe. Stability conditions are given for the subharmonic and combined resonance cases. Numerical models were used to analyze the stability of viscoelastic fluid pipes under the influence of different factors.