Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1988-06-28
1989-12-12
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367162, 367176, H04R 1700
Patent
active
048872474
ABSTRACT:
A compliant tube baffle for use in a marine environment wherein a boxlike structure (10) is surrounded by an elastomeric cover (64) and includes a pair of beam plates (12,14) separated by suitable means such as bent plate springs (18,20) which may be engageable with elastic cushioning layers (54) adhered to side shields (52). The beam plates (12,14) may be tapered with the tapered sections (34) having curved surfaces in the form of an ellipse. Damping may be provided by piezoelectric elements (58) or by constrained layers (66) of elastomeric material stressed during flexing movement of the beam plates (12,14). The beam plates (72,74) may also be separated at the edges (84) by elongated members (78,80) of solid elastomer or members (92,94) of a laminate of elastomer and rigid material.
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Water-Borne Sound Insertion Loss of a Planar Compliant-Tube Array by M. C. Junger, J. Acoust, Soc. Am 78 (3) Sep. 1985.
Black Robert H.
Caprette, Jr. Samuel J.
Lacher Frederick K.
Ronyak David M.
Steinberger Brian S.
The B. F. Goodrich Company
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