Active control of low-frequency sound radiation by cylindrical shell with piezoelectric stack force actuators

Cao, Yin; Sun, Hongling; An, Fengyan; Li, Xiaodong

doi:10.1016/j.jsv.2012.02.001

Cited by 29 publications

(17 citation statements)

References 14 publications

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“…By inserting equation (12) into equation (1), the equation of motion of the cylindrical shell in conjunction with piezoelectric disks is obtained as (18) (19) (20) It is supposed that no external voltage is applied to the sensors (V se = 0), thus, the electrical charge of the sensors and actuators can be derived from equations (19) and (20). (21) (22) By substituting equations (21) and (22) …”

Section: Theoretical and Experimental Study Of Active Vibration Contrmentioning

confidence: 99%

“…The same work is carried out in [18] on a more complicated model with a hemispherical shell at one end and a conical shell at the other end. Cao et al [19] actively controlled the sound pressure radiated from a cylinder by controlling the axial low-frequency vibration of a shell using stack piezoelectric actuators. The mentioned theoretical analyses have investigated axial vibration control of cylinders.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Loghmani

Danesh

Keshmiri

et al. 2015

Journal of Low Frequency Noise, Vibration and Active Control

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Active vibration control of a cylindrical shell using piezoelectric disks is studied both theoretically and experimentally in this paper. Hamilton's principle is used for deriving dynamic motion equations of the cylinder coupled with piezoelectric disks. The equations are discretised by Rayleigh-Ritz method. An adaptive feedforward controller based on steepest descent method is implemented on a PC to control the modal vibration. The proposed method solves the drawback of using PCs that is sending and receiving data in block form. It is shown that the proposed control system which consists of piezoelectric disks and an adaptive controller is effective in reducing vibration and radiated acoustic noise.

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Section: Theoretical and Experimental Study Of Active Vibration Contrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Loghmani

Danesh

Keshmiri

et al. 2015

Journal of Low Frequency Noise, Vibration and Active Control

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show abstract

“…Even though this method could be modeled efficiently, the practicality of the method is almost out of the question, since a considerable number of sensors are needed to estimate the global kinetic energy, as well as the radiated sound power. In 2012, Cao and Sun used piezoelectric stack force actuators to control the sound radiated from a cylindrical shell [45]. The control forces were obtained by minimizing the axial displacement and the radiated pressure as different cost functions.…”

Section: Motivationmentioning

confidence: 99%

Active control of cylindrical shells using the weighted sum of spatial gradients control metric

Aslani

Sommerfeldt

Blotter

2015

Journal of the Acoustical Society of America

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Active Control of Cylindrical Shells Using theWeighted Sum of Spatial Gradients (WSSG) Control Metric Pegah Aslani Department of Physics and Astronomy, BYU Doctor of Philosophy Cylindrical shells are common structures that are often used in industry, such as pipes, ducts, aircraft fuselages, rockets, submarine pressure hulls, electric motors and generators. In many applications it is desired to attenuate the sound radiated from the vibrating structure. There are both active and passive methods to achieve this purpose. However, at low frequencies passive methods are less effective and often an excessive amount of material is needed to achieve acceptable results. There have been a number of works regarding active control methods for this type of structure. In most cases a considerable number of error sensors and secondary sources are needed. However, in practice it is much preferred to have the fewest number of error sensors and control forces possible. Most methods presented have shown considerable dependence on the error sensor location. The goal of this dissertation is to develop an active noise control method that is able to attenuate the radiated sound effectively at low frequencies using only a small number of error sensors and secondary sources, and with minimal dependence on error sensor location. The Weighted Sum of Spatial Gradients control metric has been developed both theoretically and experimentally for simply supported cylindrical shells. The method has proven to be robust with respect to error sensor location. In order to quantify the performance of the control method, the radiated sound power has been chosen. In order to calculate the radiated sound power theoretically, the radiation modes have been developed for cylindrical shells. Experimentally, the radiated sound power without and with control has been measured using the ISO 3741 standard. The results show comparable, or in some cases better, performance in comparison with other known methods. Some agreement has been observed between model and experimental results. However, there are some discrepancies due to the fact that the actual cylinder does not appear to behave as an ideal simply supported cylindrical shell.

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“…Kwak et al (2012) employed the RayleighRitz method based on the Donnell-Mushtari shell theory and positive position feedback control to investigate the active vibration and sound radiation control of a submerged baffled cylindrical shell by using piezoelectric sensors and actuators. Cao et al (2012) employed a pair of surface-mounted in-phase-driven piezoelectric stack force actuators for active vibration and low-frequency sound radiation control of a fluidloaded stiffened cylindrical hull of finite length with rigid end-caps under axial mechanical excitations. Just recently, Kwak and Yang (2013) both theoretically and experimentally investigated active vibration and sound radiation control of a ring-stiffened baffled circular cylindrical shell subjected to harmonic disturbance by means of piezoelectric sensor and actuator pairs.…”

Section: Introductionmentioning

confidence: 99%

Active Transient Sound Radiation Control from a Smart Piezocomposite Hollow Cylinder

Hasheminejad¹,

Rabbani²

2015

Archives of Acoustics

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The linear 3D piezoelasticity theory along with active damping control (ADC) strategy are applied for non-stationary vibroacoustic response suppression of a doubly fluid-loaded functionally graded piezolaminated (FGPM) composite hollow cylinder of infinite length under general time-varying excitations. The control gain parameters are identified and tuned using Genetic Algorithm (GA) with a multi-objective performance index that constrains the key elasto-acoustic system parameters and control voltage. The uncontrolled and controlled time response histories due to a pair of equal and opposite impulsive external point loads are calculated by means of Durbin's numerical inverse Laplace transform algorithm. Numerical simulations demonstrate the superior (good) performance of the GA-optimized distributed active damping control system in effective attenuation of sound pressure transients radiated into the internal (external) acoustic space for two basic control configurations. Also, some interesting features of the transient fluid-structure interaction control problem are illustrated via proper 2D time domain images and animations of the 3D sound field. Limiting cases are considered and accuracy of the formulation is established with the aid of a commercial finite element package as well as comparisons with the current literature.

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Active control of low-frequency sound radiation by cylindrical shell with piezoelectric stack force actuators

Cited by 29 publications

References 14 publications

Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Theoretical and Experimental Study of Active Vibration Control of a Cylindrical Shell Using Piezoelectric Disks

Active control of cylindrical shells using the weighted sum of spatial gradients control metric

Active Transient Sound Radiation Control from a Smart Piezocomposite Hollow Cylinder

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