Vibration suppression of a piezo-equipped cylindrical shell in a broad-band frequency domain

Loghmani, Ali; Danesh, Mohammad; Kwak, Moon Kyu; Keshmiri, Mehdi

doi:10.1016/j.jsv.2017.08.051

Cited by 14 publications

(12 citation statements)

References 22 publications

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“…Such peak reductions can also be observed in other papers (see e.g. [42,10,11,12,14]), but on fewer resonance peaks (meaning that the reduction rate will be smaller). Note moreover that the control problem is here more complex since the energy reduction is achieved in a zone where there are no actuators and no sensors.…”

Section: Resultssupporting

confidence: 75%

“…To control more resonant modes, techniques have also been developed to combine these SISO controllers in parallel [1,7]. More recently, modern control design methods such as LQG (static feedback), H 2 control and H ∞ control (dynamic feedback) have also been considered to design MIMO controllers to control multiple modes [8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24].…”

Section: Introductionmentioning

confidence: 99%

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Active vibration control in specific zones of smart structures

Wang

Korniienko

Bombois

et al. 2019

Control Engineering Practice

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Smart structures are light structures with integrated sensing and actuating capabilities (smart materials). In this paper, the use of such smart materials for active vibration control is considered, in the case where the vibration covers a large frequency band and the vibration has to be reduced in a region where neither actuation nor sensing is possible. An accurate model combining physical and data-based modeling is developed. A multi-variable H ∞ controller achieving the desired control objective and taking into account the robustness issues is computed. The validity of the proposed approach is verified on an experimental setup.

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Section: Resultssupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Active vibration control in specific zones of smart structures

Wang

Korniienko

Bombois

et al. 2019

Control Engineering Practice

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“…In order to show the accuracy and reliability of the present results for the special case of cylinder subjected to piezoelectric patches, the obtained natural frequencies from present study are compared with those offered by Loghmani et al (2017). For this purpose, the properties of the shell and piezoelectric patches are considered with the same data from Loghmani et al (2017), as listed in Table 1. Consequently, the results of natural frequency comparison between present study and those of Loghmani et al (2017) are listed in Table 2.…”

Section: Validationmentioning

confidence: 95%

“…For this purpose, the properties of the shell and piezoelectric patches are considered with the same data from Loghmani et al (2017), as listed in Table 1. Consequently, the results of natural frequency comparison between present study and those of Loghmani et al (2017) are listed in Table 2. Since the natural frequencies of the both systems are the same, for free vibration analysis of the system, it is essential to consider one of these generalized coordinates including q wcnm , q vsnm , q ucnm or q wsnm , q vcnm , q usnm (Kwak et al, 2009).…”

Section: Validationmentioning

confidence: 99%

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A robust optimum controller for suppressing radiated sound from an intelligent cylinder based on sliding mode method considering piezoelectric uncertainties

Talebitooti

Gohari

Zarastvand

et al. 2019

Journal of Intelligent Material Systems and Structures

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In this study, a robust controller against the uncertainties in piezoelectric patches including sensor and actuator is designed based on sliding mode method to control the radiated sound from cylindrical shells. Accordingly, in order to extract and discretize the dynamic equations of a smart cylinder equipped with piezoelectric patches, the Hamilton’s principle and the Rayleigh-Ritz method are, respectively, used . The radiated sound is estimated by the Kirchhoff-Helmholtz integral and the acoustic structural sensing method. Furthermore, an innovative approach is proposed on sliding mode control to model system uncertainties and design robust control signals against these disturbances. Using effective control signals for each mode is the applied methodology for establishing independent sliding surfaces. In fact, it is attempted to relate between actuator matrix determinant and system control ability in generating the efficient control signals and error reduction due to actuators uncertainties. By the aid of this relation, optimization of the actuators position according to the genetic algorithm is implemented. The obtained results show that by optimizing the actuators position not only the appropriate performance of the system in controlling the radiated sound from the structure is enhanced but also the essential control voltage for each actuator is significantly decreased.

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Structurally Integrated Piezoelectric Actuators for Reducing Rear Axle Gear Whine Noise

et al. 2018

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The gear whine phenomenon in vehicles is a well‐known acoustic issue which often needs a development of individual measures. Especially in rear‐wheel and four‐wheel drive vehicles, the acoustical optimization of the rear axle leads to the major goal conflict: improvement of the vibrational isolation of the rear axle versus excellent driving dynamics of the vehicle. A promising solution for this issue is described in this paper. The key objective is to reduce the noise contributions of the rear axle using an active vibration control system (AVC) based on piezoelectric actuators on the transfer path from the axle into the vehicle. In the first part of the paper, the development process of the AVC system is described. In the second part of the paper, a rear axle test bench is presented which is used to validate the simulation results. A multi component control algorithm has been implemented in order to get an optimum reduction of relevant forces at the mounting points to the vehicle using one or more actuators. In preparation for a series launch of the AVC system, an assembly concept for applying the piezoelectric actuators to the rear sub frame in a series production process is presented.

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Vibration suppression of a piezo-equipped cylindrical shell in a broad-band frequency domain

Cited by 14 publications

References 22 publications

Active vibration control in specific zones of smart structures

Active vibration control in specific zones of smart structures

A robust optimum controller for suppressing radiated sound from an intelligent cylinder based on sliding mode method considering piezoelectric uncertainties

Structurally Integrated Piezoelectric Actuators for Reducing Rear Axle Gear Whine Noise

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