CA1051351A - Cellular sound absorptive structure - Google Patents
Cellular sound absorptive structureInfo
- Publication number
- CA1051351A CA1051351A CA223,651A CA223651A CA1051351A CA 1051351 A CA1051351 A CA 1051351A CA 223651 A CA223651 A CA 223651A CA 1051351 A CA1051351 A CA 1051351A
- Authority
- CA
- Canada
- Prior art keywords
- waveguides
- sound
- waveguide
- cell
- array
- 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.)
- Expired
Links
- 230000001413 cellular effect Effects 0.000 title 1
- 238000003491 array Methods 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 19
- 238000010521 absorption reaction Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 101100536893 Schizosaccharomyces pombe (strain 972 / ATCC 24843) thi9 gene Proteins 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- OMFRMAHOUUJSGP-IRHGGOMRSA-N bifenthrin Chemical compound C1=CC=C(C=2C=CC=CC=2)C(C)=C1COC(=O)[C@@H]1[C@H](\C=C(/Cl)C(F)(F)F)C1(C)C OMFRMAHOUUJSGP-IRHGGOMRSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
- B64D33/06—Silencing exhaust or propulsion jets
-
- 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
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Pipe Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US458676A US3913702A (en) | 1973-06-04 | 1974-04-08 | Cellular sound absorptive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1051351A true CA1051351A (en) | 1979-03-27 |
Family
ID=23821679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA223,651A Expired CA1051351A (en) | 1974-04-08 | 1975-04-02 | Cellular sound absorptive structure |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS6014359B2 (sv) |
| BE (1) | BE827666A (sv) |
| CA (1) | CA1051351A (sv) |
| DE (1) | DE2515127C2 (sv) |
| FR (1) | FR2266929B1 (sv) |
| GB (1) | GB1502314A (sv) |
| IL (1) | IL47021A (sv) |
| IT (1) | IT1035218B (sv) |
| SE (1) | SE405134B (sv) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265955A (en) * | 1978-05-01 | 1981-05-05 | The Boeing Company | Honeycomb core with internal septum and method of making same |
| GB2038410B (en) * | 1978-12-27 | 1982-11-17 | Rolls Royce | Acoustic lining utilising resonance |
| DE3020849A1 (de) * | 1980-06-02 | 1981-12-17 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Schallschirme mittels resonatoren, insbesondere silatoren |
| DE3140270A1 (de) * | 1981-10-10 | 1983-04-28 | Autoflug Gmbh, 2084 Rellingen | Kraftfahrzeug-rahmenteil mit gurtaufroller und strammvorrichtung |
| DE4011705A1 (de) * | 1990-04-11 | 1991-10-17 | Freudenberg Carl Fa | Luftschall absorbierendes formteil |
| GB9101395D0 (en) * | 1991-01-22 | 1991-03-06 | Short Brothers Plc | Structural cellular component |
| DE4415983C2 (de) † | 1994-05-06 | 1998-02-19 | Continental Ag | Am Radkasten eines Kraftfahrzeuges anzubringende, als passiver Schallabsorber wirkende Vorrichtung |
| DE19804718C2 (de) * | 1998-02-06 | 2001-09-13 | Eurocopter Deutschland | Schall absorbierende Sandwichwand |
| DE19841975B4 (de) * | 1998-09-14 | 2004-02-12 | Continental Aktiengesellschaft | Schallabsorbierende Platte |
| DE10001932A1 (de) | 2000-01-19 | 2001-08-02 | Kautex Textron Gmbh & Co Kg | Verkleidungselement |
| US6918740B2 (en) * | 2003-01-28 | 2005-07-19 | Dresser-Rand Company | Gas compression apparatus and method with noise attenuation |
| JP2013015118A (ja) * | 2011-07-06 | 2013-01-24 | Toyota Boshoku Corp | 吸音構造体 |
| DE102013000691A1 (de) * | 2013-01-15 | 2014-07-17 | Kai Klinder | Schallabsorbierender Hohlraum-Absorber mit engmaschiger Wabenstruktur zum Aufbau von Schallschutzeinrichtungen |
| CN110473510B (zh) * | 2019-07-31 | 2024-06-18 | 中国船舶重工集团公司第七一四研究所 | 一种基于声子晶体的元胞结构及回风隔声装置 |
| JP7475932B2 (ja) * | 2020-04-01 | 2024-04-30 | プレス工業株式会社 | 自動車用防音カバー構造 |
| US11668236B2 (en) * | 2020-07-24 | 2023-06-06 | General Electric Company | Acoustic liners with low-frequency sound wave attenuating features |
| CN112002300A (zh) * | 2020-10-12 | 2020-11-27 | 株洲时代新材料科技股份有限公司 | 宽频共振吸声方法及结构 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3166149A (en) * | 1965-01-19 | Damped-resonator acoustical panels | ||
| US3831710A (en) * | 1973-01-24 | 1974-08-27 | Lockheed Aircraft Corp | Sound absorbing panel |
-
1975
- 1975-04-01 GB GB13235/75A patent/GB1502314A/en not_active Expired
- 1975-04-02 CA CA223,651A patent/CA1051351A/en not_active Expired
- 1975-04-03 SE SE7503813A patent/SE405134B/sv unknown
- 1975-04-06 IL IL47021A patent/IL47021A/en unknown
- 1975-04-07 DE DE2515127A patent/DE2515127C2/de not_active Expired
- 1975-04-08 IT IT48977/75A patent/IT1035218B/it active
- 1975-04-08 FR FR7510977A patent/FR2266929B1/fr not_active Expired
- 1975-04-08 JP JP50042696A patent/JPS6014359B2/ja not_active Expired
- 1975-04-08 BE BE1006581A patent/BE827666A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2266929A1 (sv) | 1975-10-31 |
| IL47021A (en) | 1977-11-30 |
| GB1502314A (en) | 1978-03-01 |
| FR2266929B1 (sv) | 1980-04-25 |
| AU7988375A (en) | 1976-10-14 |
| BE827666A (fr) | 1975-10-08 |
| IT1035218B (it) | 1979-10-20 |
| SE405134B (sv) | 1978-11-20 |
| DE2515127C2 (de) | 1986-04-30 |
| SE7503813L (sv) | 1975-10-09 |
| JPS50138615A (sv) | 1975-11-05 |
| IL47021A0 (en) | 1975-06-25 |
| JPS6014359B2 (ja) | 1985-04-12 |
| DE2515127A1 (de) | 1975-10-16 |
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