Whirling Analysis of Axial-Loaded Multi-Step Timoshenko Rotor Carrying Concentrated Masses

Journal of Solid Mechanics

مقاله 11، دوره 9، شماره 1، خرداد 2017، صفحه 138-156   

نوع مقاله: Research Paper

نویسندگان

K Torabi^{* 1}؛ H Afshari²؛ H Najafi³

¹Faculty of Mechanical Engineering, University of Isfahan, Isfahan, Iran

²Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran

³Department of Solid Mechanics, Faculty of Mechanical Engineering, Politecnico di Milano, Milan, Italy

چکیده

In this paper, exact solution for two-plane transverse vibration analysis of axial-loaded multi-step Timoshenko rotor carrying concentrated masses is presented. Each attached element is considered to have both translational and rotational inertia. Forward and backward frequencies and corresponding modes are obtained using transfer matrix method (TMM). The effect of the angular velocity of spin, value of the translational and rotational inertia, position of the attached elements and applied axial force on the natural frequencies are investigated for various boundary conditions.

کلیدواژه‌ها

Whirling analysis؛ Timoshenko rotor؛ Multi-step؛ Axial load؛ Concentrated mass؛ Rotational inertia؛ Transfer matrix method (TMM)

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