RU95121444A - ACOUSTIC PROTECTION OF THE USE OF LOADS OF USEFUL LOAD OF LAUNCHED VEHICLES - Google Patents
ACOUSTIC PROTECTION OF THE USE OF LOADS OF USEFUL LOAD OF LAUNCHED VEHICLESInfo
- Publication number
- RU95121444A RU95121444A RU95121444/28A RU95121444A RU95121444A RU 95121444 A RU95121444 A RU 95121444A RU 95121444/28 A RU95121444/28 A RU 95121444/28A RU 95121444 A RU95121444 A RU 95121444A RU 95121444 A RU95121444 A RU 95121444A
- Authority
- RU
- Russia
- Prior art keywords
- protection according
- acoustic
- acoustic protection
- foamed plastic
- absorber
- Prior art date
Links
- 239000004033 plastic Substances 0.000 claims 15
- 239000006098 acoustic absorber Substances 0.000 claims 8
- 210000003284 Horns Anatomy 0.000 claims 5
- 239000006096 absorbing agent Substances 0.000 claims 4
- 239000000463 material Substances 0.000 claims 4
- 239000011148 porous material Substances 0.000 claims 2
- 230000001681 protective Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 2
- 210000000088 Lip Anatomy 0.000 claims 1
- 239000004952 Polyamide Substances 0.000 claims 1
- 230000001070 adhesive Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 238000002788 crimping Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 claims 1
- 229920002647 polyamide Polymers 0.000 claims 1
- 239000011528 polyamide (building material) Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
Claims (29)
в котором St - площадь поперечного сечения, связанная с диаметром Dt горловины рупора;
Vн - объем ячейки;
Dt - диаметр горловины рупора;
Dm - диаметр раскрыва рупора;
l - длина рупора;
l
in which S t is the cross-sectional area associated with the diameter D t of the mouth of the mouthpiece;
V n - cell volume;
D t is the diameter of the mouth of the mouthpiece;
D m - the aperture of the mouth;
l is the length of the speaker;
l
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01129/95A CH691465A5 (en) | 1995-04-20 | 1995-04-20 | Soundproofing for payload fairings in launch vehicles and a method for producing soundproofing. |
CH01129.95-9 | 1995-04-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
RU95121444A true RU95121444A (en) | 1997-12-27 |
RU2149806C1 RU2149806C1 (en) | 2000-05-27 |
Family
ID=4203175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU95121444/28A RU2149806C1 (en) | 1995-04-20 | 1995-12-01 | Acoustic protection of payload fairings of launched expendable flying vehicles |
Country Status (3)
Country | Link |
---|---|
US (2) | US5670758A (en) |
CH (1) | CH691465A5 (en) |
RU (1) | RU2149806C1 (en) |
Families Citing this family (62)
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CH690143A5 (en) * | 1995-01-27 | 2000-05-15 | Rieter Automotive Int Ag | Lambda / 4 sound absorbers. |
US6977109B1 (en) * | 1998-07-24 | 2005-12-20 | 3M Innovative Properties Company | Microperforated polymeric film for sound absorption and sound absorber using same |
US6098926A (en) * | 1998-08-06 | 2000-08-08 | Lockheed Martin Corporation | Composite fairing with integral damping and internal helmholz resonators |
DE19848747C1 (en) * | 1998-10-22 | 1999-10-28 | Eurocopter Deutschland | Solar generator for space vehicle and/or satellite |
US6224020B1 (en) | 1998-12-24 | 2001-05-01 | Alliant Techsystems, Inc. | Payload fairing with improved acoustic suppression |
DE19903386C2 (en) | 1999-01-29 | 2002-04-18 | Astrium Gmbh | Structure for thermal insulation of satellites |
US6170605B1 (en) | 1999-04-22 | 2001-01-09 | The Soundcoat Company, Inc. | Panel for absorbing acoustic energy |
US6394394B1 (en) * | 2000-05-09 | 2002-05-28 | Alliant Techsystems Inc. | Payload fairing with jettisonable mass acoustic suppression |
US6589112B2 (en) | 2000-12-29 | 2003-07-08 | Evan Ruach | Duct silencer |
US6776258B1 (en) | 2001-12-28 | 2004-08-17 | Lockheed Martin Corporation | Acoustic blanket system |
US6604602B1 (en) * | 2002-09-30 | 2003-08-12 | Chae Yong Kim | Separable speaker cover box containing speaker system |
US6802179B2 (en) | 2002-12-02 | 2004-10-12 | Aerojet-General Corporation | Nozzle with spiral internal cooling channels |
US6799417B2 (en) * | 2003-02-05 | 2004-10-05 | Aerojet-General Corporation | Diversion of combustion gas within a rocket engine to preheat fuel |
US20050064165A1 (en) * | 2003-09-22 | 2005-03-24 | Cleveland Mark A. | Acoustically damped composite construction for the forward portion of a rocket or missile |
DE102004012929B3 (en) * | 2004-03-17 | 2005-04-21 | Dornier Gmbh | Noise reduction system for gas turbine engine for aircraft has surface cladding for hot gas channel downstream of turbine, with circular perforated plates covering large ends of frustoconical spaces |
US7246772B2 (en) * | 2004-12-20 | 2007-07-24 | Sikorsky Aircraft Corporation | Acoustic absorption system for an aircraft interior trim panel system |
US7429015B2 (en) * | 2004-12-20 | 2008-09-30 | Sikorsky Aircraft Corporation | Acoustic absorption blanket mounting system for an aircraft cabin |
US7410126B2 (en) * | 2004-12-20 | 2008-08-12 | Sikorsky Aircraft Corporation | Tunable acoustic absorption system for an aircraft cabin |
US7578468B2 (en) * | 2004-12-20 | 2009-08-25 | Sikorsky Aircraft Corporation | Acoustic absorption system for an aircraft airframe |
US20060189231A1 (en) * | 2005-02-23 | 2006-08-24 | Meng-Fong Shieh | Reinforced polyurethane foam and its manufacturing process |
KR100645824B1 (en) * | 2005-06-14 | 2006-11-14 | 김영옥 | The sound-absorbing panel |
US7234663B1 (en) * | 2005-06-14 | 2007-06-26 | The United States Of America As Represented By The Secretary Of The Air Force | Bubble cloud acoustic damping for launch vehicle fairing |
US7837008B1 (en) * | 2005-09-27 | 2010-11-23 | The United States Of America As Represented By The Secretary Of The Air Force | Passive acoustic barrier |
US20070163228A1 (en) * | 2006-01-19 | 2007-07-19 | United Technologies Corporation | Gas augmented rocket engine |
US7469770B2 (en) | 2006-06-29 | 2008-12-30 | United Technologies Corporation | Anechoic visco-thermal liner |
US7451855B2 (en) * | 2007-01-09 | 2008-11-18 | Samw Hong Jen Wang | Acoustic absorbing device |
US20080253900A1 (en) * | 2007-04-11 | 2008-10-16 | Harris Ralph E | Gas compressor with pulsation absorber for reducing cylinder nozzle resonant pulsation |
US7947364B2 (en) * | 2007-08-16 | 2011-05-24 | New Mexico Technical Research Foundation | Energy-attenuation structure |
CA2699094A1 (en) * | 2007-10-31 | 2009-05-07 | E. I. Du Pont De Nemours And Company | Vibration absorber |
US8324285B2 (en) * | 2007-11-06 | 2012-12-04 | The Boeing Company | Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making |
US8740590B2 (en) * | 2007-12-17 | 2014-06-03 | Southern Gas Association Gas Machinery Research Council | Hyperbolic horn for pulsation filter device used with gas compressor |
US8123498B2 (en) | 2008-01-24 | 2012-02-28 | Southern Gas Association Gas Machinery Research Council | Tunable choke tube for pulsation control device used with gas compressor |
US8127889B1 (en) * | 2009-09-15 | 2012-03-06 | The Boeing Company | Noise reduction system for structures |
US7913813B1 (en) | 2009-10-21 | 2011-03-29 | The Boeing Company | Noise shield for a launch vehicle |
DE102010026834A1 (en) * | 2010-07-12 | 2012-01-12 | Rolls-Royce Deutschland Ltd & Co Kg | Gas turbine exhaust cone |
WO2012086680A1 (en) * | 2010-12-21 | 2012-06-28 | Kitamura Yoshiharu | Soundproofing plate which does not obstruct airflow |
DE102011008920A1 (en) | 2011-01-19 | 2012-07-19 | Rolls-Royce Deutschland Ltd & Co Kg | Sound absorber, in particular for a gas turbine exhaust cone and method for its production |
CN103137118B (en) * | 2011-11-30 | 2016-07-06 | 香港科技大学 | Acoustic energy absorption metamaterial |
US8960365B2 (en) * | 2011-11-30 | 2015-02-24 | The Hong Kong University Of Science And Technology | Acoustic and vibrational energy absorption metamaterials |
DE102011120979A1 (en) | 2011-12-13 | 2013-06-13 | Rolls-Royce Deutschland Ltd & Co Kg | Acoustic absorber |
US8714304B2 (en) * | 2012-09-21 | 2014-05-06 | Yoshiharu Kitamura | Soundproofing plate and soundproofing device permitting air flow |
GB201301702D0 (en) | 2013-01-31 | 2013-03-20 | Rolls Royce Plc | Exhaust cone |
US11021870B1 (en) * | 2013-03-14 | 2021-06-01 | Hrl Laboratories, Llc | Sound blocking enclosures with antiresonant membranes |
US9145675B2 (en) * | 2013-05-29 | 2015-09-29 | Wenger Corporation | Tunable acoustic panel |
US9068345B2 (en) * | 2013-08-12 | 2015-06-30 | Hexcel Corporation | Multi-sectional acoustic septum |
US8997923B2 (en) * | 2013-08-12 | 2015-04-07 | Hexcel Corporation | Sound wave guide for use in acoustic structures |
DE102013109492B4 (en) | 2013-08-30 | 2015-06-25 | Airbus Defence and Space GmbH | Sound absorber, sound absorber arrangement and an engine with a sound absorber arrangement |
FR3026122B1 (en) * | 2014-09-24 | 2019-08-09 | Safran Aircraft Engines | ACOUSTIC TREATMENT PANEL |
US9469985B1 (en) * | 2015-05-11 | 2016-10-18 | Hexcel Corporation | Acoustic structures with multiple degrees of freedom |
US9330651B1 (en) * | 2015-07-16 | 2016-05-03 | Hong Jen Wang | Acoustic absorbing combination |
US10669048B1 (en) * | 2017-06-15 | 2020-06-02 | United Launch Alliance, L.L.C. | Mechanism for increasing jettison clearance |
US10783869B2 (en) * | 2017-09-12 | 2020-09-22 | Honeywell International Inc. | Cell structure for use in an acoustic panel, and methods of producing the same |
DE102017130718A1 (en) * | 2017-12-20 | 2019-06-27 | Sennheiser Electronic Gmbh & Co. Kg | Loudspeaker box with cover plate |
US11059559B2 (en) * | 2018-03-05 | 2021-07-13 | General Electric Company | Acoustic liners with oblique cellular structures |
AT520932B1 (en) * | 2018-09-19 | 2019-09-15 | Wakonig Martin | wall element |
CN110274525B (en) * | 2019-06-25 | 2022-10-04 | 石家庄市居高科技有限公司 | High-speed aircraft with resistance reduction and range extension functions |
EP3792188A1 (en) | 2019-09-10 | 2021-03-17 | RUAG Schweiz AG | Modular acoustic protection arrangement and method for manufacturing such an acoustic protection arrangement |
FR3111003A1 (en) * | 2020-05-29 | 2021-12-03 | Airbus Operations | Soundproofing honeycomb structure including a diaphragm with a tube configured to handle different acoustic frequencies, method of manufacturing such a structure, and associated tool |
US11715450B2 (en) * | 2020-12-22 | 2023-08-01 | Rohr, Inc. | Acoustic panel core cell with funnel shaped septum |
CN112876200B (en) * | 2021-02-03 | 2023-01-31 | 孚莱孚(上海)新材料有限公司 | Low-density aerogel/melamine foam composite material and application thereof |
US11970992B2 (en) | 2021-06-03 | 2024-04-30 | General Electric Company | Acoustic cores and tools and methods for forming the same |
DE102022208434A1 (en) * | 2022-08-12 | 2024-02-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Carrier device for mounting a payload in a spacecraft |
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US1783276A (en) * | 1929-02-21 | 1930-12-02 | Howard R Bliss | Sound-controlling ventilating device |
US3174580A (en) * | 1961-04-28 | 1965-03-23 | Kurt W Schulz | Acoustical tile construction |
US3831710A (en) * | 1973-01-24 | 1974-08-27 | Lockheed Aircraft Corp | Sound absorbing panel |
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GB1470036A (en) * | 1975-01-17 | 1977-04-14 | Lockheed Aircraft Corp | Dual range sound absorber |
GB1499882A (en) * | 1975-02-14 | 1978-02-01 | Rolls Royce | Sound attenuating structure |
US4667768A (en) * | 1986-05-01 | 1987-05-26 | Lockheed Corporation | Sound absorbing panel |
FR2652938B1 (en) * | 1989-10-06 | 1994-07-01 | Centre Nat Etd Spatiales | ACOUSTIC INSULATION SCREEN AND ITS APPLICATIONS, PARTICULARLY FOR PROTECTING THE LOAD COMPARTMENT OF A LAUNCHER. |
GB9014381D0 (en) * | 1990-06-28 | 1990-08-22 | Short Brothers Plc | A composite structural component |
US5185504A (en) * | 1992-06-30 | 1993-02-09 | Jen Wang H | Acoustic board |
US5445861A (en) * | 1992-09-04 | 1995-08-29 | The Boeing Company | Lightweight honeycomb panel structure |
-
1995
- 1995-04-20 CH CH01129/95A patent/CH691465A5/en not_active IP Right Cessation
- 1995-06-21 US US08/493,050 patent/US5670758A/en not_active Expired - Lifetime
- 1995-12-01 RU RU95121444/28A patent/RU2149806C1/en not_active IP Right Cessation
-
1996
- 1996-04-22 US US08/636,128 patent/US5760349A/en not_active Expired - Lifetime
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