SE9000794L - SOUND-SOILING MATERIAL - Google Patents

SOUND-SOILING MATERIAL

Info

Publication number
SE9000794L
SE9000794L SE9000794A SE9000794A SE9000794L SE 9000794 L SE9000794 L SE 9000794L SE 9000794 A SE9000794 A SE 9000794A SE 9000794 A SE9000794 A SE 9000794A SE 9000794 L SE9000794 L SE 9000794L
Authority
SE
Sweden
Prior art keywords
open
sound
layer
plastic
temperature
Prior art date
Application number
SE9000794A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9000794D0 (en
SE500795C2 (en
Inventor
I Andersson
Original Assignee
Diab Barracuda Ab
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 Diab Barracuda Ab filed Critical Diab Barracuda Ab
Priority to SE9000794A priority Critical patent/SE500795C2/en
Publication of SE9000794D0 publication Critical patent/SE9000794D0/en
Publication of SE9000794L publication Critical patent/SE9000794L/en
Priority to CA 2057733 priority patent/CA2057733A1/en
Priority to GB9200602A priority patent/GB2263281A/en
Priority to DE19924200773 priority patent/DE4200773A1/en
Priority to FR9200756A priority patent/FR2686725A1/en
Priority to JP4037233A priority patent/JPH05273986A/en
Publication of SE500795C2 publication Critical patent/SE500795C2/en

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
    • G10K11/162—Selection of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/28—Arrangement of offensive or defensive equipment
    • B63G8/34—Camouflage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H3/00—Camouflage, i.e. means or methods for concealment or disguise

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

A sound-damping material for underwater use includes a layer of solid material having a thickness of at least 1 cm and an open structure. The material has open alveole structures of 2-20 alveoles per centimeter which, in use, are filled with water. The front surface of the material is preferably structured with crests and troughs. The material is a plastic material having a glass transition temperature for frequencies of 50-500 Khz which is near to a temperature of use. The layer preferably includes an open-cell cellular plastic which is preferably a reticulated polyurethane foam. <IMAGE>
SE9000794A 1990-03-06 1990-03-06 Sound absorbing material for underwater use SE500795C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9000794A SE500795C2 (en) 1990-03-06 1990-03-06 Sound absorbing material for underwater use
CA 2057733 CA2057733A1 (en) 1990-03-06 1991-12-16 Sound-damping material for underwater use
GB9200602A GB2263281A (en) 1990-03-06 1992-01-13 A sound-damping material for underwater use
DE19924200773 DE4200773A1 (en) 1990-03-06 1992-01-15 SOUND ABSORBING MATERIAL FOR USE UNDER WATER
FR9200756A FR2686725A1 (en) 1990-03-06 1992-01-24 Sound damping material for underwater use
JP4037233A JPH05273986A (en) 1990-03-06 1992-01-27 Silencer for underwater use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000794A SE500795C2 (en) 1990-03-06 1990-03-06 Sound absorbing material for underwater use

Publications (3)

Publication Number Publication Date
SE9000794D0 SE9000794D0 (en) 1990-03-06
SE9000794L true SE9000794L (en) 1991-09-07
SE500795C2 SE500795C2 (en) 1994-09-05

Family

ID=20378780

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000794A SE500795C2 (en) 1990-03-06 1990-03-06 Sound absorbing material for underwater use

Country Status (5)

Country Link
CA (1) CA2057733A1 (en)
DE (1) DE4200773A1 (en)
FR (1) FR2686725A1 (en)
GB (1) GB2263281A (en)
SE (1) SE500795C2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1088671A (en) * 1963-09-21 1967-10-25 Bostik Ltd Improvements in or relating to sound-deadening material
FR2528474A1 (en) * 1982-06-14 1983-12-16 Fabrikant Luc Cutting cellular board into acoustic absorption panels - using lateral slicing to produce two or more panels simultaneously
ATE67038T1 (en) * 1982-06-15 1991-09-15 Raychem Corp SONAR SYSTEM CONTAINING HIGH DAMPING POLYMER COMPOUNDS.
US4584232A (en) * 1983-01-20 1986-04-22 Illbruck Gmbh Schaumstofftechnik Foam material sound absorption
GB2167425B (en) * 1984-09-22 1988-04-27 Wardle Storeys Plc Vibration damping and sound insulation materials

Also Published As

Publication number Publication date
FR2686725A1 (en) 1993-07-30
SE9000794D0 (en) 1990-03-06
SE500795C2 (en) 1994-09-05
GB2263281A (en) 1993-07-21
GB9200602D0 (en) 1992-03-11
DE4200773A1 (en) 1993-07-22
CA2057733A1 (en) 1993-06-17

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Legal Events

Date Code Title Description
NUG Patent has lapsed