Bubbles effect on sound dispersion in thin-walled tube with polymeric liquid and elastic central rod

Levitsky, S.; Bergman, R.; Haddad, J.

doi:10.1016/j.jsv.2011.01.019

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…The equations of motion can be solved by substituting equations (5), (6), and (7) into equations (8), (9), and (10)…”

Section: Fundingmentioning

confidence: 99%

“…Bubbles, in general, have very high compressibility, so their acoustic properties changes frequently. 6 When these bubbles collide with the shell structure, it generates an impact force that leads to structural excitation. Usually, this impulsive force is not constant during the collision time.…”

Section: Introductionmentioning

confidence: 99%

“…For the analysis of these systems, simplified shell equation given by Donnell–Mushtari were utilized. 6 The effects of transverse shear forces have been neglected in these systems.…”

Section: Introductionmentioning

confidence: 99%

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Bubble-induced noise and vibration in cylindrical shell filled with liquid nitrogen

Gupta

Sharma

Lakhera

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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Bubble-induced vibration is a very crucial aspect in some critical systems like laser interferometer gravitational-wave observatory. Recently, laser interferometer gravitational-wave observatory detected the gravitational wave produced due to the merger of two black holes. To detect the other universe collision event due to other binary pairs like neutron stars, black holes or combination, the sensitivity of the detector should be very high. The sensitivity depends on the reduction of the noise present in the detector system / components. Liquid nitrogen cryopump is also one of the sources for the noise. This noise has been produced due to the bubble structure interaction. The present work analyzes the bubble generated noise spectrum level and its acoustic effect due to induced vibration. The spectrum levels considering force, acceleration, velocity, and displacement effect have been studied in detail for a thin annular fluid (LN2) filled cylindrical shell. It is assumed that the structure of cylindrical shell is homogeneous as well as isotropic. The noise level generated due to radial force excitation resulting from bubble collision has been found to be in the range of −85 dB to −45 dB at a lower resonance frequency.

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“…The equations of motion can be solved by substituting equations (5), (6), and (7) into equations (8), (9), and (10)…”

Section: Fundingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bubble-induced noise and vibration in cylindrical shell filled with liquid nitrogen

Gupta

Sharma

Lakhera

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Effect of fluid viscoelasticity on sound wave propagation in a thin-walled elastic tube was first studied in [1]. Later results of the authors relate to different geometric configurations of the waveguide, including a layered shell [2,3].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Polymeric Liquid Material Properties Effect on Pressure Transients in the Elastic Pipe

Levitsky

Bergman

2020

MSF

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Material properties of polymeric liquids are of great importance for different technological processes. Particularly, such liquids demonstrate viscoelastic behavior in non-stationary transportation regimes, widely used in polymer processing, which influence the operation of the equipment. The paper is devoted to the modeling of pressure transient in a long thin-walled elastic tube with polymeric liquid. As distinct to previous results of the authors, material properties of the liquid are described by generalized Maxwell rheological equation accounting for a spectrum of relaxation times. It is supposed that the pressure pulse is generated at the tube end and propagates along the waveguide with the speed influenced by the tube geometry and wall elasticity, and the liquid compressibility and viscoelasticity. The problem is formulated in a quasi-one-dimensional approximation and solved by the operational method. The resulting relation for the pressure in the wave is inverted numerically. Effect of liquid relaxation time distribution on the pressure pulse propagation is studied. The results are relevant for the dynamic operation of equipment for polymer processing; they can be useful also for material characterization of high-molecular liquids.

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Solvent Transport Phenomena

2024

Handbook of Solvents, Volume 1

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Bubbles effect on sound dispersion in thin-walled tube with polymeric liquid and elastic central rod

Cited by 5 publications

References 12 publications

Bubble-induced noise and vibration in cylindrical shell filled with liquid nitrogen

Bubble-induced noise and vibration in cylindrical shell filled with liquid nitrogen

Modeling of Polymeric Liquid Material Properties Effect on Pressure Transients in the Elastic Pipe

Solvent Transport Phenomena

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