Interaction of an acoustic shock wave with a cylindrical piezoceramic shell located near a plane boundary

Babaev, A. É.; Ryabukha, Yu. N.; Савин, В. Г.

doi:10.1007/bf00847027

Cited by 1 publication

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“…Among these, Belova et al (1987) employed a finite-difference scheme based on the integro-interpolation method to solve the nonstationary wave problem for an infinitely long hollow piezoelectric ceramic cylinder submerged in an ideal fluid and excited by an electric signal. Babaev et al (1993) investigated the interaction of an obliquely incident weak external plane shock wave with an infinitely long thin piezoceramic cylindrical shell, located near a plane rigid or free boundary. Clark and Fuller (1994) carried out narrow-band acoustic control experiments using piezoceramic actuator and polyvinylidene fluoride (PVDF) structural sensors mounted on the surface of a long and thin aluminum cylindrical shell.…”

Section: Introductionmentioning

confidence: 99%

Acoustic radiation and active control from a smart functionally graded submerged hollow cylinder

Hasheminejad

Alaei-Varnosfaderani

2013

Journal of Vibration and Control

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The 3D piezoelasticity theory and the spatial state-space approach are used to study the steady-state non-axisymmetric sound radiation and scattering characteristics of an infinitely long, arbitrarily thick, orthotropic functionally graded hollow circular cylinder, coupled with an inner (actuator) layer of functionally graded piezoceramic material. The method of stationary phase is employed for evaluation of the radiated far-field pressure integral. Numerical simulations include water-submerged air-filled steel-PZT4 composite cylinders driven by harmonic electromechanical loads or insonified by an obliquely incident plane sound wave. Also, when the actuator layer is operating in the active vibration mode, the effects of the number of control modes on the input voltage required for partial or complete cancellation of the far-field and internal radiated pressures as well as on the backscattering form function and noise reduction amplitudes are examined. Limiting cases are considered and validity of formulation is established by comparison with available data as well as with the aid of a commercial finite element package.

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Section: Introductionmentioning

confidence: 99%