Aeroelastic Stability of Cylindrical Shells Subjected to a Rotating Flow

Dowell, Earl H.; Srinivasan, Anand; Mclean, J. D.; Ambrose, J.

doi:10.2514/3.49573

Cited by 25 publications

(1 citation statement)

References 8 publications

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“…Vorobiev and Detistov [6] considered the effect of a gas flow on the natural frequencies of Rayleigh-type vibrations of an infinitely long rotating cylindrical rod. Some experimental results were given by Dowell et al [7] on the effect of swirling annular flow on the stability of a cylindrical shell. Generally, until the past decade, only infinitely long shells are considered in the framework of numericalanalytical solutions.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration and instability of rotating piezoelectric nanocomposite sandwich cylindrical shells containing axially flowing and rotating fluid–particle mixture

2016

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Axially flowing and rotating fluid‐particle mixture‐induced vibration and instability of a sandwich cylindrical shell are the main contribution of this work. The sandwich structure is made from a functionally graded carbon nanotube‐reinforced composite (CNTRC) cylindrical shell integrated with piezoelectric sensor and actuator layers. In this regard, the perturbation velocity potential is introduced and the pressure exerted by a fluid is obtained by the linearized Bernoulli formula. The actuator layer is subjected to an applied voltage in thickness direction which operates in control of vibration and stability. Based on Mindlin shell theory, the motion equations are derived and solved by the differential quadrature method (DQM). A detailed parametric study is conducted to elucidate the influences of the vibrational modes, distribution type and volume fractions of single‐walled carbon nanotubes (SWCNTs), boundary conditions, volume percent of particles and applied voltage on the vibration and instability of the structure. Results indicate that the system becomes unstable in the form of flutter in the cases of angular rotation of the shell or fluid as well as axial flow and angular rotation of the fluid while in the case of the rotating shell containing a corotating fluid, the loss of stability does not occur. POLYM. COMPOS., 38:E577–E596, 2017. © 2016 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Nonlinear vibration and instability of rotating piezoelectric nanocomposite sandwich cylindrical shells containing axially flowing and rotating fluid–particle mixture

2016

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Flutter of Plates and Shells in Practice

Dowell¹

1980

Practical Experiences With Flow-Induced Vibrations

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Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

Wang

Zhang

2015

Arch Appl Mech

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Considering thermal loads, dynamics and stability of an outer cylindrical shell conveying swirling fluid in the annulus between the inner shell-type body and the outer shell are investigated by the travelling wave approach. Shell motions are considered based on Donnell-type shell theory. The fluid forces are described by means of the potential flow theory, and thermal loads are determined by the thermo-elastic theory. The numerical analyses are conducted by a zero-level contour method. The study shows the effects of annular gaps and boundary conditions on stability of shells. The influences of angular flow on the critical axial velocity and axial flow on the critical annular velocity are discussed. Moreover, the thermal loads decrease the critical flow velocity markedly and the critical temperature rise is found.

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Aeroelastic Stability of Cylindrical Shells Subjected to a Rotating Flow

Cited by 25 publications

References 8 publications

Nonlinear vibration and instability of rotating piezoelectric nanocomposite sandwich cylindrical shells containing axially flowing and rotating fluid–particle mixture

Nonlinear vibration and instability of rotating piezoelectric nanocomposite sandwich cylindrical shells containing axially flowing and rotating fluid–particle mixture

Flutter of Plates and Shells in Practice

Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

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