The Institute of Physics ( IOP ) по журналам "Smart Materials and Structures"
Отображаемые элементы 1-20 из 678
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(1992-03-01)Plane electromagnetic wave reflection from a biisotropic layer is studied and possible applications of biisotropic materials in radar and antenna technology are proposed. Electromagnetic properties of these materials are ...
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(1992-09-01)The author presents the capabilities provided by an expert-system-based design environment package developed to help non-experienced users in the design of multivariable control systems. Three external design tools have ...
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(1996-10-01)The QUAD4 element found in ASTROS is modified to include piezoelectric layers and a viscoelastic layer. These features are developed and combined to allow for active damping using piezoelectrics, passive damping using ...
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(1999-08-01)Our aim is the presentation of a macroscopic constitutive model for the purpose of engineering reliability analysis of piezoceramic components designed for so-called `smart' electromechanical sensor and actuator applications. ...
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(1995-09-01)An optimization procedure is developed for controls/structures interaction using a multiobjective formulation. A rotating composite cantilever box beam model is presented which includes piezoelectric strain actuators for ...
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(1997-12-01)Acoustic waves are currently being used in a wide range of sensor fields including physical sensing, chemical sensing and biosensing. Their implementation requires specific knowledge of materials, acoustic wave properties, ...
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(1996-12-01)The aeroservoelastic properties of a new class of adaptive aeronautical surfaces are detailed. These new active surfaces use the newly invented Flexspar configuration which employs a high-strength main spar around which ...
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(1993-03-01)A finite-element model is developed for the active buckling control of laminated composite plates using piezoelectric materials. The finite-element model is based on the first-order shear deformation plate theory in ...
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(2000-12-01)In this paper the authors address the problem of suppressing the vibrations of a clamped-clamped plate using an active constrained layer damping treatment. This treatment involves adding viscoelastic and metallic constraining ...
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(1997-02-01)This paper studies vibration control of a shell structure through use of an active constrained layer (ACL) damping treatment. A deep-shell theory that assumes arbitrary Lamé parameters and is first developed. Application ...
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(1999-02-18)A model is developed to predict the dynamic response of a mechanical stack called a `piezoceramic element' which is composed of a piezoelectric sensor, a viscoelastic damper and a piezoelectric actuator of which the applied ...
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(1995-03-01)Active control of a slightly sagged cable using actuator motion in the cable axial direction is studied. Two active control schemes are proposed: (i) active stiffness control and (ii) active sag-induced force control. They ...
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(1999-04-15)Theoretical formulations based on the classical laminated plate theory (CLPT) and Navier solutions are presented for the analysis of laminated composite plates with integrated sensors and actuators and subjected to both ...
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(1994-12-01)This paper analytically demonstrates the use of piezoelectric actuators and PVDF sensors to actively control the far-field sound radiation from a simply-supported beam in an infinite rigid baffle. The beam is assumed to ...
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(2000-06-01)This paper describes an active control system for reducing the vibration of a pair of meshing gears caused by the variation of meshing stiffness. A gear meshing model is developed and used to determine the magnitude of the ...
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(1996-02-01)Analytical and experimental studies undertaken for controlling noise in the interior of a three-dimensional enclosure with a flexible wall are presented. The rigid walls are constructed from acrylic material, and the ...
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(1995-12-01)Active sound transmission control using a piezoelectric sensor and actuator on a thin plate is investigated experimentally. The plate made of aluminium covers the opening of an acoustic enclosure where a sound source is ...
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(1995-12-01)The Michelson fiber-optic interferometric sensor has been employed to detect the vibration signal of a flexible beam. An active control technique is also implemented to suppress the vibration signal generated from a ...
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(1994-03-01)We present in this paper an active anechoidal termination composed of a porous material, whose absorbent properties are improved by a secondary source. A simple model of acoustic propagation in a porous medium leads to ...
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(1992-06-01)Embedding of shape memory alloy (SMA) fibers in slender flexible bodies results in shape changes of the host medium, whenever shape recovery of the SMA fibers takes place. The shape change of a cylindrical rod with a single ...
Отображаемые элементы 1-20 из 678