&lt;title&gt;High force-to-volume Terfenol-D reaction mass actuator: modeling and design&lt;/title&gt;

Dozor, David M.; Jagannathan, Shankar; Gerver, M. J.; Fenn, Ralph C.; Logan, David; Berry, John R.

doi:10.1117/12.239060

Cited by 6 publications

(5 citation statements)

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“…In order to minimize the vibrations transmitted through a cylindrical strut to a host structure, various types of actuators can be used. In the ACSR control system developed by Westland Helicopters [3] electro-hydraulic actuators were used, and in the vibration-isolation system reported by Dozor et al [18,19] magnetostrictive actuators were used at the gearbox-fuselage interface. In the RHINO project, first piezoelectric actuators were considered by Brennan et al [20], and later, magnetostrictive actuators were used as mentioned in section 1.…”

Section: Actuation Mechanisms For Vibration Transmission Reductionmentioning

confidence: 99%

Analytical study of active control of wave transmission through cylindrical struts

Pelinescu

Balachandran

2001

Smart Mater. Struct.

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In this article, analytical investigations conducted into active control of longitudinal and flexural vibrations transmitted through a cylindrical strut are presented. Mechanics based models for struts fitted with piezoelectric and magnetostrictive actuators are developed, and for harmonic disturbances, a linear dynamic formulation describing the motion of the actuators is integrated with the formulation describing wave transmission through the strut. The resulting system is studied in the frequency domain and open-loop control studies are conducted with the aid of numerical simulations. Comparisons are made between control schemes based on piezoelectric actuators and magnetostrictive actuators, and the effectiveness of these schemes in attenuating wave transmission is also discussed. The studies presented here, which can form the bases for analog feedforward control schemes and model based feedback schemes, illustrate the potential for active suppression of longitudinal and lateral displacements in cylindrical struts over the frequency range extending from 10 Hz to 5 kHz.

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Section: Actuation Mechanisms For Vibration Transmission Reductionmentioning

confidence: 99%

Analytical study of active control of wave transmission through cylindrical struts

Pelinescu

Balachandran

2001

Smart Mater. Struct.

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“…Giant Magnetostrictive Dynamic Model [6,7]. According to Kirchhoff's laws, the relationship between the voltage and the current of the driving coil is described as follows:…”

Section: Mathematical Modelmentioning

confidence: 99%

Design, Modeling and Simulation of an Innovation Pneumatic High Speed on-Off Valve Based on Giant Magnetostrictive Material

Zhang

Líu

Guo

et al. 2011

AMR

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Based on giant magnetostrictive material, a new design of pneumatic high speed on-off valve is presented in this paper. To settle the problem of balancing fast response and large flow, a cantilever beam is employed as both displacement amplifier and valve spool in the innovation structure of the valve. The dynamic model of the valve is established by analyzing the dynamic performances of the giant magnetostrictive actuator and the cantilever beam, based on the theories of electromagnetism and the mechanical vibration. A simulation on this model is carried out to investigate the performance of the valve. Results of the simulation show that the new pneumatic high speed on-off valve is able to achieve the goal of high frequency response, while satisfying the requirement of a large flow.

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“…Where, d 33 is the piezomagnetic coefficient. The magnetic flux is in direct proportion to magnetomotive force (MMF) of driving solenoid, in inverse proportion to reluctance of magnetic loop [6] . The MMF of the driving solenoid can be depicted by two kinds of Laplace transaction expression:…”

Section: Dynamic Properties Of Jet Valve Based On Gmamentioning

confidence: 99%

Design and Analysis of Big-Character Printer

Meng

Zhou

et al. 2010

AMR

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The Big-character printer is a dot-matrix print equipment used in industry field. The print head is the key part of it. Sixteen jet valves are arranged in three lines alternated regular framework. Every valve is driven by giant magnetostractive actuator (GMA). The dynamic characters of valve body and GMA have been studied in the paper. The square wave response experiment shows that the valve bandwidth is more than 400Hz. The response plot has a good agreement with the simulation result. Meanwhile, the print dots are clear. Therefore, the BCP based on GMA could fulfill the requirement.

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<title>High force-to-volume Terfenol-D reaction mass actuator: modeling and design</title>

Cited by 6 publications

References 0 publications

Analytical study of active control of wave transmission through cylindrical struts

Analytical study of active control of wave transmission through cylindrical struts

Design, Modeling and Simulation of an Innovation Pneumatic High Speed on-Off Valve Based on Giant Magnetostrictive Material

Design and Analysis of Big-Character Printer

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