A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wide band tunable mechanical resonator employing the Delta e effect of Terfenol-D
The control of Terfenol-D's operational elastic modulus offers opportunities for novel devices and applications capitalizing on real-time changes in material stiffness. This work describes the development and testing of a Terfenol-D transducer employed as a wide-band variable frequency mechanical resonator. The design and construction of such a wide-band mechanical resonator for testing under controlled thermal, magnetic and dynamic mechanical load conditions are described. Changes in Terfenol-D's elastic modulus, the Delta E effect, approaching 266% are demonstrated in the mechanical resonator utilizing a range of d.c. applied magnetic field levels of less than 61.0kA/m. The elastic modulus and damping characteristics of Terfenol-D, critical to the successful design of devices employing the Delta E effect, are examined.
Wide band tunable mechanical resonator employing the Delta e effect of Terfenol-D
The control of Terfenol-D's operational elastic modulus offers opportunities for novel devices and applications capitalizing on real-time changes in material stiffness. This work describes the development and testing of a Terfenol-D transducer employed as a wide-band variable frequency mechanical resonator. The design and construction of such a wide-band mechanical resonator for testing under controlled thermal, magnetic and dynamic mechanical load conditions are described. Changes in Terfenol-D's elastic modulus, the Delta E effect, approaching 266% are demonstrated in the mechanical resonator utilizing a range of d.c. applied magnetic field levels of less than 61.0kA/m. The elastic modulus and damping characteristics of Terfenol-D, critical to the successful design of devices employing the Delta E effect, are examined.
Wide band tunable mechanical resonator employing the Delta e effect of Terfenol-D
Kellogg, Rick (author) / Flatau, Alison (author)
Journal of Intelligent Material Systems and Structures ; 15 ; 355-368
2004
14 Seiten, 12 Quellen
Article (Journal)
English
Wide Band Tunable Mechanical Resonator Employing the DeltaE Effect of Terfenol-D
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