EP0328931A3 - Baffle à tubes pliables - Google Patents
Baffle à tubes pliables Download PDFInfo
- 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
- beam plates
- layers
- elastic
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods 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
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods 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
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/20—Reflecting arrangements
- G10K11/205—Reflecting arrangements for underwater use
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15700888A | 1988-02-18 | 1988-02-18 | |
US157008 | 1988-02-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0328931A2 EP0328931A2 (fr) | 1989-08-23 |
EP0328931A3 true EP0328931A3 (fr) | 1991-07-31 |
Family
ID=22561989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890101662 Withdrawn EP0328931A3 (fr) | 1988-02-18 | 1989-02-01 | Baffle à tubes pliables |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0328931A3 (fr) |
JP (1) | JPH01252999A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497357A (en) * | 1988-12-23 | 1996-03-05 | Alliedsignal Inc. | Shock-resistant flextensional transducer |
FR2730335A1 (fr) * | 1995-02-02 | 1996-08-09 | France Etat | Dispositif anti bruit notamment pour accoustique sous-marine |
FR2732806B1 (fr) * | 1995-04-06 | 1997-07-04 | Mediterranee Const Ind | Materiau destine a augmenter la discretion acoustique d'une structure, notamment une coque de navire |
WO1997016817A1 (fr) * | 1995-11-02 | 1997-05-09 | Trustees Of Boston University | Fenetres de protection contre le bruit et les vibrations |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR398890A (fr) * | 1908-01-31 | 1909-06-16 | Siemens Ag | Membrane à vibrations libres actionnée électro-magnétiquement pour appareils à signaux tels que des trompettes électriques |
FR2536195A1 (fr) * | 1982-11-17 | 1984-05-18 | Sintra Alcatel Sa | Reflecteur acoustique sous-marin |
EP0114764A2 (fr) * | 1983-01-19 | 1984-08-01 | Thomson-Csf | Dispositif à interface réflectrice d'ondes acoustiques |
US4715559A (en) * | 1986-05-15 | 1987-12-29 | Fuller Christopher R | Apparatus and method for global noise reduction |
EP0291892A2 (fr) * | 1987-05-20 | 1988-11-23 | The B.F. Goodrich Company | Réflecteur creux flexible |
-
1989
- 1989-02-01 EP EP19890101662 patent/EP0328931A3/fr not_active Withdrawn
- 1989-02-15 JP JP1033875A patent/JPH01252999A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR398890A (fr) * | 1908-01-31 | 1909-06-16 | Siemens Ag | Membrane à vibrations libres actionnée électro-magnétiquement pour appareils à signaux tels que des trompettes électriques |
FR2536195A1 (fr) * | 1982-11-17 | 1984-05-18 | Sintra Alcatel Sa | Reflecteur acoustique sous-marin |
EP0114764A2 (fr) * | 1983-01-19 | 1984-08-01 | Thomson-Csf | Dispositif à interface réflectrice d'ondes acoustiques |
US4715559A (en) * | 1986-05-15 | 1987-12-29 | Fuller Christopher R | Apparatus and method for global noise reduction |
EP0291892A2 (fr) * | 1987-05-20 | 1988-11-23 | The B.F. Goodrich Company | Réflecteur creux flexible |
Non-Patent Citations (2)
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 |
---|---|
JPH01252999A (ja) | 1989-10-09 |
EP0328931A2 (fr) | 1989-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910829 |