BE806950A - Procede de fabrication d'une paroi a cavites resonnantes - Google Patents
Procede de fabrication d'une paroi a cavites resonnantesInfo
- Publication number
- BE806950A BE806950A BE2053196A BE2053196A BE806950A BE 806950 A BE806950 A BE 806950A BE 2053196 A BE2053196 A BE 2053196A BE 2053196 A BE2053196 A BE 2053196A BE 806950 A BE806950 A BE 806950A
- Authority
- BE
- Belgium
- Prior art keywords
- cavites
- resonant
- making
- wall
- resonant cavites
- Prior art date
Links
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
- 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
- B32B3/02—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 features of form at particular places, e.g. in edge regions
- B32B3/08—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 features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—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 features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
- E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/024—Honeycomb
-
- 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
- B32B2607/00—Walls, panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/748—Honeycomb materials
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7239247A FR2213384B1 (fr) | 1972-11-06 | 1972-11-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE806950A true BE806950A (fr) | 1974-03-01 |
Family
ID=9106703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE2053196A BE806950A (fr) | 1972-11-06 | 1973-11-06 | Procede de fabrication d'une paroi a cavites resonnantes |
Country Status (4)
Country | Link |
---|---|
US (1) | US3905443A (fr) |
BE (1) | BE806950A (fr) |
FR (1) | FR2213384B1 (fr) |
GB (1) | GB1445149A (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4135603A (en) * | 1976-08-19 | 1979-01-23 | United Technologies Corporation | Sound suppressor liners |
US4130682A (en) * | 1978-03-24 | 1978-12-19 | Lauko John W | Sound absorbing device |
DE9110552U1 (de) * | 1991-08-26 | 1992-12-24 | Irbit Research + Consulting Ag, Freiburg/Fribourg | Motorraumkapselelement |
FR2815900B1 (fr) * | 2000-10-31 | 2003-07-18 | Eads Airbus Sa | Panneau sandwich reducteur de bruit, notamment pour turboreacteur d'aeronef |
US6711872B2 (en) * | 2001-07-30 | 2004-03-30 | International Paper Company | Lightweight panel construction |
JP2005134653A (ja) * | 2003-10-30 | 2005-05-26 | Kobe Steel Ltd | 吸音構造体 |
US8109361B2 (en) * | 2006-07-20 | 2012-02-07 | Kobe Steel, Ltd. | Solid-borne sound reducing structure |
BR112013033897A2 (pt) * | 2011-06-29 | 2017-02-14 | Zephyros Inc | painel acústico e método de montagem associado |
ITTO20111124A1 (it) | 2011-12-09 | 2013-06-10 | Alenia Aermacchi Spa | Elemento per l'assorbimento acustico, in particolare destinato ad essere montato su componenti di aeromobili, quali gondole motori. |
WO2015164929A1 (fr) * | 2014-05-02 | 2015-11-05 | Ashmere Holdings Pty Ltd | Système d'absorption acoustique et procédés de fabrication |
KR102355136B1 (ko) | 2014-06-25 | 2022-01-26 | 엘지전자 주식회사 | 리니어 압축기, 리니어 압축기의 쉘, 리니어 압축기의 쉘 제작방법 |
US10174675B2 (en) | 2015-12-30 | 2019-01-08 | General Electric Company | Acoustic liner for gas turbine engine components |
US10332501B2 (en) | 2017-02-01 | 2019-06-25 | General Electric Company | Continuous degree of freedom acoustic cores |
US10836502B2 (en) * | 2017-12-15 | 2020-11-17 | The Boeing Company | Wave-shaped acoustic insert and core |
US11059559B2 (en) | 2018-03-05 | 2021-07-13 | General Electric Company | Acoustic liners with oblique cellular structures |
US11047304B2 (en) | 2018-08-08 | 2021-06-29 | General Electric Company | Acoustic cores with sound-attenuating protuberances |
US10823059B2 (en) | 2018-10-03 | 2020-11-03 | General Electric Company | Acoustic core assemblies with mechanically joined acoustic core segments, and methods of mechanically joining acoustic core segments |
US11434819B2 (en) | 2019-03-29 | 2022-09-06 | General Electric Company | Acoustic liners with enhanced acoustic absorption and reduced drag characteristics |
US11668236B2 (en) | 2020-07-24 | 2023-06-06 | General Electric Company | Acoustic liners with low-frequency sound wave attenuating features |
US11970992B2 (en) | 2021-06-03 | 2024-04-30 | General Electric Company | Acoustic cores and tools and methods for forming the same |
US11965425B2 (en) | 2022-05-31 | 2024-04-23 | General Electric Company | Airfoil for a turbofan engine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3022607A (en) * | 1953-12-01 | 1962-02-27 | Ohio Commw Eng Co | Sound deadening tile |
US3043730A (en) * | 1957-09-03 | 1962-07-10 | Dow Chemical Co | Foamed construction element |
US3249659A (en) * | 1961-07-19 | 1966-05-03 | Allied Chem | Method of making laminated panel structures |
US3351154A (en) * | 1964-06-01 | 1967-11-07 | Baldwin Ehret Hill Inc | Acoustical panel with cellular lattice embedded into sound absorptive element |
US3380206A (en) * | 1965-09-29 | 1968-04-30 | Soundlock Corp | Lay-in acoustical ceiling panel with flexible diaphragms |
US3638573A (en) * | 1968-03-25 | 1972-02-01 | Ncr Co | Self-destructible honeycomb laminates |
US3655818A (en) * | 1968-10-18 | 1972-04-11 | Minnesota Mining & Mfg | Particulate adhesive containing polyepoxides carboxylated butadiene-acrylonitrile copolymer and a urea derivative as a curing agent |
US3481427A (en) * | 1968-11-29 | 1969-12-02 | Mc Donnell Douglas Corp | Acoustical panel structure |
US3607543A (en) * | 1969-03-21 | 1971-09-21 | Philip J Stevenson | Process for forming lightweight nylon nonwoven web |
US3504761A (en) * | 1969-06-18 | 1970-04-07 | Us Navy | Pressure-insensitive,sandwiched,acoustic material having a honeycomb core |
US3693750A (en) * | 1970-09-21 | 1972-09-26 | Minnesota Mining & Mfg | Composite metal structure useful in sound absorption |
-
1972
- 1972-11-06 FR FR7239247A patent/FR2213384B1/fr not_active Expired
-
1973
- 1973-10-31 GB GB5069973A patent/GB1445149A/en not_active Expired
- 1973-11-01 US US411900A patent/US3905443A/en not_active Expired - Lifetime
- 1973-11-06 BE BE2053196A patent/BE806950A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR2213384A1 (fr) | 1974-08-02 |
US3905443A (en) | 1975-09-16 |
FR2213384B1 (fr) | 1975-03-28 |
GB1445149A (en) | 1976-08-04 |
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