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Implication of conservative and gyroscopic forces on vibration and stability of an elastically tailored rotating shaft modeled as a composite thin-walled beam
(Acoustical Society of America, 2001-03-01)
Problems related with the implications of conservative and gyroscopic forces on vibration and the stability of a circular cylindrical shaft modeled as a thin-walled composite beam and spinning with constant angular speed ...
Using transient shear rheology to determine material parameters in fiber suspension theory
(AIP Publishing, 2009-05-01)
Fiber suspension theory model parameters for use in the simulation of fiber orientation in complex flows are, in general, either calculated from theory or fit to experimentally determined fiber orientation generated in ...
Modeling and the signal-to-noise ratio research of magnetoelectric sensors at low frequency
(AIP Publishing, 2007-10-01)
The authors have modeled magnetoelectric (ME) laminate sensor units by considering both the ME laminate and detection circuitry. Theory predicts and experiments confirm that the signal-to-noise ratio increases with increasing ...
Direct measurement of magnetoelectric exchange in self-assembled epitaxial BiFeO3-CoFe2O4 nanocomposite thin films
(AIP Publishing, 2009-05-01)
We report the direct measurement of a magnetoelectric (ME) exchange between magnetostrictive CoFe2O4 nanopillars in a piezoelectric BiFeO3 matrix for single-layer nanocomposite epitaxial thin films grown on (001) SrTiO3 ...
Giant magnetoelectric effect in Metglas/polyvinylidene-fluoride laminates
(AIP Publishing, 2006-08-01)
Here, the authors report thin (< 100 mu m) and flexible magnetoelectric (ME) composites consisting of Metglas (high-mu magnetostriction) and polyvinylidene-fluoride (piezopolymer) layers laminated together. Both unimorph ...
Thermal noise cancellation in symmetric magnetoelectric bimorph laminates
(AIP Publishing, 2008-08-01)
We have found a symmetric Terfenol-D/Pb(Zr,Ti)03 (PZT) bimorph magnetoelectric (ME) laminate, which operates in a bending mode under an unsymmetrical (U-shaped) magnetic bias. It has a giant ME voltage coefficient of about ...
Obtaining reliable transient rheological data on concentrated short fiber suspensions using a rotational rheometer
(AIP Publishing, 2009-09-01)
The conventional method for obtaining transient rheological data on short glass fiber-filled polymeric fluids is to use the parallel disk (PP) geometry in a rotational rheometer. Using the PP geometry large transient stress ...
Modeling of shape memory alloy hybrid composites for structural acoustic control
(Acoustical Society of America, 1991-01-01)
Experimental demonstration of active vibration and structural acoustic control using shape memory alloy (SMA) hybrid composites [C. A. Rogers, in Proceedings of the International Congress on Recent Developments in Air and ...
Dimensionally gradient magnetoelectric bimorph structure exhibiting wide frequency and magnetic dc bias operating range
(American Institute of Physics, 2009-12-01)
We report results on a dimensionally gradient magnetoelectric (ME) sensor that demonstrates high performance over a wide frequency range and a magnetic dc bias operating in the longitudinal-transversal mode. The design of ...
Vortex magnetic field sensor based on ring-type magnetoelectric laminate
(AIP Publishing, 2004-09-01)
It has been found that ring-type magnetoelectric laminate composites of circumferentially magnetized magnetostrictive TERFENOL-D and a circumferentially poled piezoelectric Pb(Zr,Ti)O-3 have high sensitivity to a vortex ...