Superscattering of plate bending wave
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsTaehwa Lee, Hideo Iizuka
Life of this patent
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Abstract
Devices for superscattering a plate bending wave include a solid plate, and a circular array of spring-mass resonators positioned on a surface of the plate. All resonators in the circular array have a resonance frequency that can be matched to a frequency of a target flexural wave. The circular array has a diameter that can further be matched to the wavelength of the target flexural wave. Scattering efficiencies can exceed several multiples of the theoretical limit.
Claims20
A device for superscattering a flexural wave, the device comprising:
- a plate;
- and
- a circular array of spring-mass resonators positioned on the plate, the array having N degrees of rotational symmetry about a center point, where N is the number of resonators in the array.
A vehicle having a device for superscattering a flexural wave, the vehicle comprising:
- a structural plate of the vehicle;
- and
- a circular array of spring-mass resonators positioned on the plate, the array having N degrees of rotational symmetry about a center point, where N is the number of resonators in the array.
Dependencies are inferred from the claim text.