Piezoelectric modal sensor/actuator pairs for critical active damping vibration control

Lee, C. ‐K.; Chiang, W.-W.; O’Sullivan, T. C.

doi:10.1121/1.401260

Cited by 132 publications

(64 citation statements)

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“…Piezoelectric sensors and/or actuators are being extensively used for active vibration control of light weight smart structures during the past one and half decade (Bailey and Hubbard, 1985;Crawley and Luis, 1987;Baz and Poh, 1988;Tzou and Tseng, 1990;Lee et al, 1991;Hanagud et al, 1992;Devasia et al, 1993;Gu et al, 1994;Zhou et al, 1995;Baz and Poh, 1996;Agarwal and Treanor, 1999;Stö bener and Gaul, 2000;Dong and Tong, 2001;Peng et al, 2005). The direct and converse piezoelectric effects inherently present in these materials are utilized for using these materials as distributed sensors and actuators, respectively.…”

Section: Introductionmentioning

confidence: 98%

Smart damping of laminated thin cylindrical panels using piezoelectric fiber reinforced composites

Ray

2007

International Journal of Solids and Structures

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In this paper performance of a new piezoelectric fiber reinforced composite (PFRC) material has been investigated for active constrained layer damping (ACLD) of laminated thin simply supported composite cylindrical panels. The constraining layer of the ACLD treatment has been considered to be made of this PFRC material. A finite element model of smart composite panels integrated with the patches of such ACLD treatment has been developed to demonstrate the performance of these patches on enhancing the damping characteristics of thin cross-ply and angle-ply laminated composite cylindrical panels. Particular emphasis has been placed on studying the effect of variation of the piezoelectric fiber orientation in the constraining PFRC layer and the shallowness angle of the panels on the control authority of the patches.

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Section: Introductionmentioning

confidence: 98%

Smart damping of laminated thin cylindrical panels using piezoelectric fiber reinforced composites

Ray

2007

International Journal of Solids and Structures

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“…This DVFB technique with a collocated actuator/sensor pair is attractive for developing smart structures with robust stability and performance using distributed piezoelectric transducers such as PVDF, PZT etc. The arrangement of a collocated piezoelectric actuator/velocity sensor pair was suggested by Lee 2 , and a number of vibration control systems adopting the arrangement have been implemented so far 3,4,5,6 . Considering the property of distributed parameter transducers, the term distributed collocation can be used to distinguish them from conventional driving-point collocation.…”

Section: Introductionmentioning

confidence: 99%

<title>Distributed four-layer PVDF actuator/sensor arrangement for the control of beam motion</title>

2001

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This paper presents a study of a distributed arrangement of double PVDF actuator/sensor pairs bonded on a cantilever beam for the control of vibration at the tip. The arrangement of a single PVDF actuator/sensor pair, in practice, is known to be non-minimum phase due to coupling between in-plane motion and out-of-plane motion. This means that a single pair arrangement does not have the conventional driving-point collocated system property. The stability and performance of the arrangement are limited by finite feedback gains, which can be used with direct velocity feedback control. A double pair arrangement using four layers of PVDF has thus been suggested to overcome this problem. Theoretically, when both the actuator pair and the sensor pair are working out-of-phase, then the response becomes minimum phase since in-plane motion cannot be excited or detected. A smart beam with double PVDF actuator/sensor pairs has been implemented. A triangular shaped actuator/sensor pair was bonded on each side of the beam. The initial experimental measurements with individual pairs of transducers showed a good reciprocity and a strong coupling between out-of-plane and in-plane responses. All the four layers have then been used as out-of-phase actuators and sensors to attempt to measure only the outof-plane response. However, in practice, this compensation method was found not to discriminate against the in-plane response, due to the direct coupling between the actuation and sensing transducers due to their finite thickness and compliance. Therefore, the four layers smart beam does not have a minimum phase property. A new arrangement of actuator/sensor pair for in-plane compensation is then suggested and discussed.

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“…Distributed piezoelectric actuators are used exclusively in the sensor studies. These actuators have been quite extensively studied in the recent years2' 3,6,[9][10][11][12][13][14][15][16][17][18][19][20][21][22] The actuators used in this paper are the ones developed in6. In the following section, we present the numerical results of these comparative studies without showing much mathematical details which can be found in23 .…”

Section: Introductionmentioning

confidence: 99%

<title>Study of shell interior noise control</title>

Shen

Sun

1997

SPIE Proceedings

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There is a growing interest in the application of smart materials technology to the aircraft interior noise control problem. Some outstanding issues with the interior noise control problem include development of sensory systems that can lead to global sound level reduction in the cabin, and the safety concern of structural actuators used to reduce noise radiation. This paper presents two comparative studies: 1) comparison of several sensor configurations by using acoustic microphones, and 2) comparison of strain fields induced by discrete and distributed structural actuators. A uniform cylindrical shell is used as a simplified model of a section of fuselage. Extensive simulations have been conducted. Major findings of this paper are 1 . In order to control the interior noise in the shell where there is no acoustic source inside, one only needs to place acoustic sensors near the wall. Furthermore, if one uses the energy density as an error signal, one can reduce the number of error input channels substantially. In terms of the ability to lead to the global noise reduction, a 4-channel energy density sensor is found to be comparable to 32 microphones uniformly spaced on a ring.2. Distributed piezoelectric actuators tend to introduce smoother strain fields on the shell than discrete actuators as measured by a strain index defined in the paper. This quantitative result agrees with one' s intuition.Simulation results of adaptive control of multi-tone noise field using discrete and distributed structural actuators are also presented in the paper.

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Piezoelectric modal sensor/actuator pairs for critical active damping vibration control

Cited by 132 publications

References 0 publications

Smart damping of laminated thin cylindrical panels using piezoelectric fiber reinforced composites

Smart damping of laminated thin cylindrical panels using piezoelectric fiber reinforced composites

<title>Distributed four-layer PVDF actuator/sensor arrangement for the control of beam motion</title>

<title>Study of shell interior noise control</title>

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