Journal ArticleDOI
Three‐Dimensional Investigation of the Propagation of Waves in Hollow Circular Cylinders. II. Numerical Results
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In this article, the results of a numerical evaluation of a characteristic equation derived in Part I, appropriate to free harmonic waves propagated along a hollow cylinder of infinite extent, were given for some representative cylinders covering the entire range from thin shells to solid cylinders.Abstract:
The results are given of a numerical evaluation of a characteristic equation derived in Part I, appropriate to free harmonic waves propagated along a hollow cylinder of infinite extent. This equation is evaluated for some representative cylinders covering the entire range from thin shells to solid cylinders, and the results are compared with the corresponding results of a shell theory. Observations are made regarding the variation of the frequency spectrum with the physical parameters, as well as the range of applicability of shell theories.read more
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Journal ArticleDOI
Elastic orbital angular momentum transfer from an elastic pipe to a fluid
TL;DR: In this article , the authors experimentally observe the transfer of elastic orbital angular momentum from a hollow elastic pipe to a fluid in which the pipe is partially submerged, in an elastic analogue of Durnin's slit-ring experiment for optical beams.
An experimental study of acoustical properties of tubular tower bells
Jie Pan,Sören Bergmann +1 more
TL;DR: In this paper, the authors measured the spectra and identi fied pitch of thirteen tubular tower bells, which are made of thickwall brass cylinders, and analyzed the identified pitches of the strike tones of the tubul ar tower bells against the frequency distribution and amplitude ratios of the partials in the spectras.
Journal ArticleDOI
A Technique for Defect Detection of Condenser Tube in Support Plate Region using Guided Wave
TL;DR: In this article, an ultrasonic guided wave technique was proposed to detect defects in the support plate region of condenser tubes, such as cracks and wear, by using an internal transducer probe at the end of the tube.
2 2 M ar 2 02 2 Observation of Elastic Orbital Angular Momentum Transfer
TL;DR: In this article , the authors experimentally observe the transfer of elastic orbital angular momentum from a hollow elastic pipe to a fluid in which the pipe is partially submerged, in an elastic analogue of Durnin's slit-ring experiment for optical beams.
Proceedings ArticleDOI
Computing borehold modes with spectral method
TL;DR: In this paper, a spectral method for cylindrically layered media consisting of an arbitrary number of solid elastic and fluid layers is proposed, which discretises the underlying wave equations with the help of spectral differentiation matrices and solves the corresponding equations as an generalized eigenvalue problem.
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