SE8804171L - DEVICE FOR REDUCING TRANSMISSION SOUND - Google Patents

DEVICE FOR REDUCING TRANSMISSION SOUND

Info

Publication number
SE8804171L
SE8804171L SE8804171A SE8804171A SE8804171L SE 8804171 L SE8804171 L SE 8804171L SE 8804171 A SE8804171 A SE 8804171A SE 8804171 A SE8804171 A SE 8804171A SE 8804171 L SE8804171 L SE 8804171L
Authority
SE
Sweden
Prior art keywords
slots
openings
pane
structure unit
parts
Prior art date
Application number
SE8804171A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE501995C2 (en
SE8804171D0 (en
Inventor
Goeran Kaarfalk
Original Assignee
Goeran Kaarfalk
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
Application filed by Goeran Kaarfalk filed Critical Goeran Kaarfalk
Priority to SE8804171A priority Critical patent/SE501995C2/en
Publication of SE8804171D0 publication Critical patent/SE8804171D0/en
Priority to EP89850404A priority patent/EP0378979A1/en
Publication of SE8804171L publication Critical patent/SE8804171L/en
Publication of SE501995C2 publication Critical patent/SE501995C2/en

Links

Classifications

    • 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
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • 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
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

Abstract

A device for reduction of sound transmission through a structure unit (11), e.g. a wall, door, window or the like. The structure unit consists of at least two pane-shaped parts (12,13) spaced apart a small distance from each other, one of which parts is air-proof. The space (14) between the pane-shaped parts (12,13) is subdivided in several fluidum slots (14a,14b) by means of a longitudinally extending pane- or film-shaped element (15). In the element (15) and/or in limiting members (19) adjoining thereto are made through-openings (10), thus that the sound pressure (P) in the slots (14) is equalized. The rigidity (k) and the surface weight (m) of the element are chosen thus in relation to size and total area of the openings (10) that the oscillation velocity of the element, when this is oscillated, is offset in phase relative to the sound pressure, causing pressure differences in the slots (14), whereby the area of the openings (10) realtive to the surface of the element (15) is 0,1 < w . m . s < 10 wherein: w = the dimensioning angular frequency (2 pi f) and <MATH> e
SE8804171A 1988-11-18 1988-11-18 Device for reducing transmission noise SE501995C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8804171A SE501995C2 (en) 1988-11-18 1988-11-18 Device for reducing transmission noise
EP89850404A EP0378979A1 (en) 1988-11-18 1989-11-17 A device for reduction of noise transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8804171A SE501995C2 (en) 1988-11-18 1988-11-18 Device for reducing transmission noise

Publications (3)

Publication Number Publication Date
SE8804171D0 SE8804171D0 (en) 1988-11-18
SE8804171L true SE8804171L (en) 1990-05-19
SE501995C2 SE501995C2 (en) 1995-07-10

Family

ID=20373987

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8804171A SE501995C2 (en) 1988-11-18 1988-11-18 Device for reducing transmission noise

Country Status (2)

Country Link
EP (1) EP0378979A1 (en)
SE (1) SE501995C2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217767C1 (en) * 1992-05-29 1993-08-26 Deutsche Aerospace Ag, 8000 Muenchen, De
GB2276224B (en) * 1993-03-17 1996-09-25 Nissan Motor Sound shielding plate and application of sound shielding plate to underbody of engine room of automotive vehicle
DE4315759C1 (en) * 1993-05-11 1994-05-05 Fraunhofer Ges Forschung Sound-absorbent glazing for building - comprises perforated plate with small-diameter holes close together
GB9516579D0 (en) * 1995-08-12 1995-10-11 Walker Timber Ltd Separating floor
DE102008037143A1 (en) * 2008-08-08 2010-02-11 Airbus Deutschland Gmbh Insulation structure for thermal and acoustic insulation of an aircraft
CN105529137A (en) * 2014-09-29 2016-04-27 宜兴市昊诚环保科技有限公司 Novel dismounting type ventilating, noise-eliminating and pressure-relief wall
CN108847211B (en) * 2018-05-18 2020-09-11 上海超颖声学科技有限公司 Acoustic structure and design method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB694000A (en) * 1950-10-06 1953-07-08 C W Lemmerman Inc Improvements in sound absorbing panel
US2966954A (en) * 1957-07-11 1961-01-03 Celotex Corp Acoustical correction element
US2915135A (en) * 1957-09-12 1959-12-01 C W Lemmerman Inc Acoustical panel
DE2105403A1 (en) * 1971-02-05 1972-08-24 Kaiserauer, Erwin, 7050 Waiblingen Sound absorbing panel - with at least one polystyrene damping panel bonded in disconnected zones
US4421201A (en) * 1981-09-29 1983-12-20 The Boeing Company High efficiency broadband acoustic resonator and absorption panel

Also Published As

Publication number Publication date
EP0378979A1 (en) 1990-07-25
SE501995C2 (en) 1995-07-10
SE8804171D0 (en) 1988-11-18

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