Parametric vibrations of pipes induced by pulsating flows in hydraulic systems

• Autorzy: Łuczko J. , Czerwiński A.
• Języki publikacji: EN

Abstrakty

EN

The paper discusses the model of transverse vibrations of a pipe induced by flow velocity pulsation. The motion is described by a system of two non-linear partial differential equations with periodically variable coefficients. The analysis uses the Galerkin method with orthogonal polynomials as the shape functions. The instability regions are determined by Floquet’s method. The influence of selected parameters on natural frequencies and on the character and level of vibrations is studied. The possibility of the excitation of periodic and quasi-periodic oscillations is demonstrated. The results of theoretical analysis are compared with the experimental data.

Słowa kluczowe

EN

hydraulic systems; flow-induced vibration; parametric resonance

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2014
• Tom: Vol. 52 nr 3
• Strony: 719--730
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Łuczko J.

• Cracow University of Technology, Faculty of Mechanical Engineering, Kraków, Poland

autor

Czerwiński A.

• Cracow University of Technology, Faculty of Mechanical Engineering, Kraków, Poland

Bibliografia

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