EP0328931A3 - Compliant tube baffle - Google Patents

Compliant tube baffle Download PDF

Info

Publication number
EP0328931A3
EP0328931A3 EP19890101662 EP89101662A EP0328931A3 EP 0328931 A3 EP0328931 A3 EP 0328931A3 EP 19890101662 EP19890101662 EP 19890101662 EP 89101662 A EP89101662 A EP 89101662A EP 0328931 A3 EP0328931 A3 EP 0328931A3
Authority
EP
European Patent Office
Prior art keywords
compliant tube
tube baffle
plates
elastomeric
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890101662
Other languages
German (de)
French (fr)
Other versions
EP0328931A2 (en
Inventor
Robert Harrison Black
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodrich Corp
Original Assignee
BF Goodrich Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US15700888A priority Critical
Priority to US157008 priority
Application filed by BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of EP0328931A2 publication Critical patent/EP0328931A2/en
Publication of EP0328931A3 publication Critical patent/EP0328931A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18Methods or devices for transmitting, conducting, or directing sound
    • G10K11/20Reflecting arrangements
    • G10K11/205Reflecting arrangements for underwater use

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 elastic tapered beam plates (12,14) separated by suitable means such as by bent plate springs (18,20) which may be engageable with elastic cushioning layers (54) adhered to side shields (52). 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).
EP19890101662 1988-02-18 1989-02-01 Compliant tube baffle Withdrawn EP0328931A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15700888A true 1988-02-18 1988-02-18
US157008 1988-02-18

Publications (2)

Publication Number Publication Date
EP0328931A2 EP0328931A2 (en) 1989-08-23
EP0328931A3 true EP0328931A3 (en) 1991-07-31

Family

ID=22561989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890101662 Withdrawn EP0328931A3 (en) 1988-02-18 1989-02-01 Compliant tube baffle

Country Status (2)

Country Link
EP (1) EP0328931A3 (en)
JP (1) JPH01252999A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497357A (en) * 1988-12-23 1996-03-05 Alliedsignal Inc. Shock-resistant flextensional transducer
FR2730335B1 (en) * 1995-02-02 1997-03-07
FR2732806B1 (en) * 1995-04-06 1997-07-04 Mediterranee Const Ind MATERIAL FOR INCREASING THE ACOUSTIC DISCRETION OF A STRUCTURE, IN PARTICULAR A SHIP HULL
WO1997016817A1 (en) * 1995-11-02 1997-05-09 Trustees Of Boston University Sound and vibration control windows

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR398890A (en) * 1908-01-31 1909-06-16 Siemens Ag Electro-magnetically actuated free-vibration diaphragm for signal devices such as electric trumpets
FR2536195A1 (en) * 1982-11-17 1984-05-18 Sintra Alcatel Sa Underwater acoustic reflector
EP0114764A2 (en) * 1983-01-19 1984-08-01 Thomson-Csf Interface device for acoustic wave reflection
US4715559A (en) * 1986-05-15 1987-12-29 Fuller Christopher R Apparatus and method for global noise reduction
EP0291892A2 (en) * 1987-05-20 1988-11-23 The B.F. Goodrich Company Compliant tube baffle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR398890A (en) * 1908-01-31 1909-06-16 Siemens Ag Electro-magnetically actuated free-vibration diaphragm for signal devices such as electric trumpets
FR2536195A1 (en) * 1982-11-17 1984-05-18 Sintra Alcatel Sa Underwater acoustic reflector
EP0114764A2 (en) * 1983-01-19 1984-08-01 Thomson-Csf Interface device for acoustic wave reflection
US4715559A (en) * 1986-05-15 1987-12-29 Fuller Christopher R Apparatus and method for global noise reduction
EP0291892A2 (en) * 1987-05-20 1988-11-23 The B.F. Goodrich Company Compliant tube baffle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J. ACOUST. SOC. AM., vol. 80, no. 4, October 1986, pages 1097-1102; P.S. DUBBELDAY: "Constrained-layer model investigation based on exact elasticity theory" *
J. ACOUST. SOC., vol. 78, no. 3, September 1985, pages 1010-1012; M.C. JUNGER: "Water-borne sound insertion loss of a planar compliant-tube array" *

Also Published As

Publication number Publication date
EP0328931A2 (en) 1989-08-23
JPH01252999A (en) 1989-10-09

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