Journal Article

·2019

Flapwise Bending Vibration Analysis of a Double Tapered Rotating Nonlocal Euler-Bernoulli Beam by the Differential Transform Method

İlke Kurt YTU , Metin O. Kaya

Journal of Applied Mechanics and Technical Physics

Abstract

Transverse (out-of-plane) vibrations of a rotating nanobeam tapered both in width and thickness are studied on the basis on the Euler-Bernoulli beam theory. The nonuniform nanobeam is modeled with allowance for a small-scale effect contained in the nonlocal Eringen elasticity theory. The axial force due to rotating movement (centrifugal stiffening) of the beam is included into the model. The governing partial differential equation of the structure is solved by implementing the differential transform method (DTM). The variations of the taper ratio, rotational velocity, hub radius, and nonlocal small-scale parameter are taken into consideration. Comparisons of the present results with available data are performed.

Keywords

Stiffening Physics Beam (structure) Vibration Timoshenko beam theory Euler's formula Bernoulli's principle Differential equation Mechanics Elasticity (physics) Transverse plane Rotation (mathematics) Classical mechanics Mathematical analysis Materials science Optics Mathematics Geometry Structural engineering Acoustics

Subject Areas

Nonlocal and gradient elasticity in micro/nano structures ·Materials Chemistry ·Physical Sciences
Composite Structure Analysis and Optimization ·Mechanics of Materials ·Physical Sciences
Numerical methods in engineering ·Mechanics of Materials ·Physical Sciences

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