Active Vibration Control of Frame Structures with Smart Structure Using Giant-Magnetostrictive Actuator.

Fujita, Takafumi; Nonaka, Hiroki; Yang, Chuen-Shinn; Kondo, Hirofumi; Mori, Yasushi; Amasaka, Yasutane

doi:10.1299/kikaic.64.3774

Cited by 2 publications

(6 citation statements)

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“…P IEZOELECTRIC materials (Cady, 1964) are being considered for use as both sensors and actuators for position and vibration control of structures. Examples include lead-zirconate-titanate (PZT) piezoceramic as well as lead-magnesium-niobate (PMN) electrostrictive (Anderson et al, 1990;Giurgiutiu et al, 1996;Hom and Shankar, 1997), magnetostrictive (Dapino et al, 1997;Giurgiutiu and Rogers, 1997;Fujita et al, 1998), piezoelectric stacks (Mitrovic et al, 1999), Rainbow piezoelectric (Dausch and Hooker, 1997;Li et al, 1997;Kiely et al, 1998), C-Block piezoelectric (Brei and Moskalik, 1997;Moskalik and Brei, 1998), torsional piezoelectric (Kim and Chi, 1997), CRESCENT piezoelectric (Chandran et al, 1997), THUNDER piezoelectric (Mossi and Bishop, 1999;Shakeri et al, 1999;Taleghani and Campbell, 1999), and active fiber composite (AFC) as well as magnetic particles active fiber composite (mpAFC) (Bent and Hagood, 1997;Janos and Hagood, 1999;Strock et al, 1999). Materials that exhibit piezoelectric behavior generate a charge in response to a mechanical deformation or alternatively undergo a mechanical deformation in response to an applied electric field.…”

Section: Introductionmentioning

confidence: 99%

“…Active control systems are effective in controlling the vibrations of structural elements such as rods, columns, beams, plates, and shells. Active struts with vibration suppression capabilities have been studied by Boyd et al (2001), Quenon et al (2001), Fujita et al (1998), Song et al (1999), Dekens and Neat (1999), O'Brien et al (1998), Hyde and Davis (1998), Masters and Crawley (1997), Huang et al (1997), Darby and Pellegrino (1997), and Wada et al (1990). Active struts have primarily been used for vibration suppression to maintain precision positioning rather than a direct precision positioning function.…”

Section: Introductionmentioning

confidence: 99%

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Performance of an Active Composite Strut for an Intelligent Composite Modified Stewart Platform for Thrust Vector Control

Doherty

Ghasemi‐Nejhad

2005

Journal of Intelligent Material Systems and Structures

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Adaptive or intelligent structures which have the capability for sensing and responding to their environment promise a novel approach to satisfying the stringent performance requirements of future space missions. This research effort focuses on the development and performance evaluation of an active composite strut (ACS) with precision positioning and active vibration suppression capabilities for use in space structures. Such ACS has potentials to be used as active strut members in Stewart platforms, modified Stewart platforms (MSPs), space truss structures, etc. The developed ACS utilizes piezoelectric actuators/sensors providing precision positioning and vibration suppression capabilities that would enhance mission performance of space structures by fine position-tuning, and potentially eliminating the nonoperational period of a satellite while minimizing the fuel consumption utilized for its position correction in a thrust vector control (TVC) application. Precision positioning of the ACS is achieved by extending or contracting its internal piezoelectric actuator. To magnify the positioning capabilities of a stack piezoelectric actuator, a miniature inchworm mechanism is designed and incorporated within the ACS. A precision positioning experimental setup is developed and employed to demonstrate the precision positioning capabilities of the developed ACS. The axial vibration suppression capability of the ACS can also be provided by its internal piezoelectric stack actuator, and is demonstrated employing a developed vibration suppression experimental setup. Analytical and finite element analysis numerical verification, simulation, and modeling of the vibration suppression capabilities of the ACS are presented. Active vibration suppression schemes, using finite element analyses, are employed to numerically demonstrate the vibration suppression capabilities of the developed ACS. The ACS housing is a composite tubing. The numerical and experimental results show that the proposed ACS offers a promising method for achieving fine tuning of positioning tolerances as well as minimizing the effects of disturbances generated during a thruster firing of a satellite for the TVC application using a MSP.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of an Active Composite Strut for an Intelligent Composite Modified Stewart Platform for Thrust Vector Control

Doherty

Ghasemi‐Nejhad

2005

Journal of Intelligent Material Systems and Structures

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“…However, the way that this is modeled in ANSYS FEA is as if the wafers are stacked in series both mechanically and electrically. The following demonstrates the use of Equation (5) in ANSYS FEA and compares the FEA results with the analytical solution of Equation ( 5) as well as the data provided by Morgan Matroc [41] for the piezo stack actuator considered here. A piezoelectric cylindrical stack actuator was considered here with a diameter of 10 mm and a length of 20 mm [19].…”

Section: Piezoelectric Verification Resultsmentioning

confidence: 99%

“…Therefore, the number of the wafers within the piezo stack, n, was 200. Using analytical Equation (5) one can obtain Equation (7). This same model was generated in ANSYS FEA and a voltage of U Â n ¼ (100) (200) V was applied to the model.…”

Section: Piezoelectric Verification Resultsmentioning

confidence: 99%

“…In terms of active struts, researchers have developed struts with vibration suppression or precision positioning capabilities. As previous work in terms of active struts, researchers developed active struts with vibration suppression capabilities [3][4][5][6][7][8][9][10][11][12][13]. Active struts have primarily been used for vibration suppression to maintain precision positioning rather than a direct precision positioning function.…”

Section: Introductionmentioning

confidence: 99%

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Finite Element Method for Active Vibration Suppression of Smart Composite Structures using Piezoelectric Materials

Ghasemi‐Nejhad

Pourjalali²,

Uyema³

et al. 2006

Journal of Thermoplastic Composite Materials

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Adaptive or intelligent structures which have the capability for sensing and responding to their environment promise a novel approach to satisfy the stringent performance requirements of future space missions. Analytical, numerical, and experimental results are employed to verify the performance of piezoelectric stacks and patches as well as to determine the natural frequencies of typical strut and panel structures. A strut model with a piezoelectric stack actuator for axial vibration suppression and a composite beam with surface-mounted piezoelectric patch actuator for lateral vibration suppression are considered to model an active composite strut (ACS) and an active composite panel (ACP), respectively. These ACS and ACP are employed to develop an actuator optimum voltage (OV) for active vibration suppression using modal, harmonic, and transient finite element analyses for a range of frequency encompassing a natural frequency. The ACP model demonstrates that the actuator vibration suppression capability depends on the modal shape and location of the actuator. The OV, in this work, is determined by increasing the level of actuator voltage gradually and generating a vibration with same frequencies as the external vibration but 180 out-of-phase, and observing the increasing level of active vibration suppression until an optimum/threshold actuator voltage is reached. agreements. This work also presents a systematic guideline for the use of piezoelectric stack and monolithic patch smart materials in intelligent structures using the finite element method.KEY WORDS: active vibration suppression, smart composite structures, piezoelectric stacks and patches, finite element analysis, actuator optimum voltage, active composite struts and panels, axial and lateral vibration, actuator location effects.

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Active Vibration Control of Frame Structures with Smart Structure Using Giant-Magnetostrictive Actuator.

Cited by 2 publications

References 0 publications

Performance of an Active Composite Strut for an Intelligent Composite Modified Stewart Platform for Thrust Vector Control

Performance of an Active Composite Strut for an Intelligent Composite Modified Stewart Platform for Thrust Vector Control

Finite Element Method for Active Vibration Suppression of Smart Composite Structures using Piezoelectric Materials

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