EP0811097B1 - Plattenresonator - Google Patents

Plattenresonator Download PDF

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Publication number
EP0811097B1
EP0811097B1 EP96905783A EP96905783A EP0811097B1 EP 0811097 B1 EP0811097 B1 EP 0811097B1 EP 96905783 A EP96905783 A EP 96905783A EP 96905783 A EP96905783 A EP 96905783A EP 0811097 B1 EP0811097 B1 EP 0811097B1
Authority
EP
European Patent Office
Prior art keywords
plate
resonator
resonator according
plate resonator
sound
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 - Lifetime
Application number
EP96905783A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0811097A1 (de
Inventor
Helmut Fuchs
Jörg HUNECKE
Xueqin Zha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to SI9630467T priority Critical patent/SI0811097T1/xx
Publication of EP0811097A1 publication Critical patent/EP0811097A1/de
Application granted granted Critical
Publication of EP0811097B1 publication Critical patent/EP0811097B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
    • 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
    • E04B1/8209—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 sound absorbing devices
    • 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
    • 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
    • E04B1/99—Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing 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
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • 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
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/829—Flat elements mounted at an angle, e.g. right angle, to the supporting surface
    • 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
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements
    • 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

Definitions

  • the invention relates to a plate resonator for broadband damping of rooms, for example in closed, relatively small rooms, for example: 4 x 5 m 2 and 3 m in height.
  • the transfer function of a rectangular room with the dimensions of, for example, 5 x 4 x 3 m 3 shows in the undamped unfinished state with constant airborne sound excitation level differences of up to 40 dB between the maxima and minima for any transmission and reception points. If you consider that in a real situation the transfer function of the room, as shown in Figure 1 , is superimposed on that of a bass instrument, it becomes clear that the room can play along if you leave your natural resonances untreated.
  • the spatial intensity distribution of the sound field at a certain frequency is as uneven as the frequency dependence of the entire room (see Fig . 2 ). But the decay behavior of the room during a transmission pause is also perceived as very uncomfortably fluctuating at frequencies between two resonance peaks by sensitive ears.
  • the "distortions” that distort the sound up to the well-known "roar” of language and music all too often make such a demanding job unnecessarily difficult for demanding artists and sound engineers.
  • a sound-absorbing multilayer board is known from DE 74 27 551 U1 has holes with a perforation area of at least 5% on the front. behind it then there is the absorbent foam plastic. Furthermore, from US-PS 32 15 225 a similar arrangement known with an inner layer of a plasterboard or Asbestos cement board; however, the front panel is also partially reflective with a cushioning pad, similar to an anti-drumming covering in passenger cars.
  • the object of the invention is to provide a plate resonator that is simple in construction is and does not need artificial mineral fibers. This is according to the invention by the Plate resonator solved according to claim 1, some advantageous applications are in Claim 16 and advantageous embodiments characterized in the subclaims.
  • the component according to the invention can be attached, for example, to the ceiling in a punctiform, strip-like or full-surface manner with the aid of adhesive, adhesive strips or so-called Velcro fasteners (4).
  • Velcro fasteners (4) For assembly and disassembly as well as return or disposal of the eB, it would in any case be advantageous if the connections (3) of the front and back panels as well as those of the panel resonator and structure (5) could be detached again at any time without residues that are difficult to remove or dispose of. Numerous materials and connection technologies used in the textile and packaging industry are available for this.
  • FIG. 5 An example of this, such as is recommended for wall cladding, is shown in Figure 5: the narrow angle rails (8), which are dowelled in the raw component using small plates (9) and give the eB support and fixation, remain invisible behind the front plate.
  • the front panel can be locked, for example, by means of hard rubber pins on the back of the front panel as shown in Figure 6 , which snap into prepared holes in the panels (10) of the corner profiles in the manner of push buttons (11).
  • the attachment can be designed so that the interior designer or decorator finds a structurally well fixed, stable, smooth surface that he can paint, print, coat, cover or structure as required without significantly changing its acoustic properties.
  • the sound absorber does not stand in the way of the interior, but offers itself as an additional design element (e.g. also as a mirror) if the component is attached to the wall or is in the room.
  • Figure 10 shows an example of such an ⁇ e measurement: measured from 100 Hz upwards with third-octave noise and below 100 Hz with sine excitation with the natural resonances (down to 35 Hz). If you only cover about 10% of the total area in the corners and edges with this prototype, its transfer function (see Fig. 1) can be smoothed according to Fig. 11 to hardly more than 10 dB level fluctuation below 100 Hz. The component according to the invention thus provides a very effective means of avoiding or eliminating the "booming" in small rooms.
  • Figure 12 shows the reverberation time of a recording studio optimized with various prototypes (all with a construction depth of only 100 mm and a weight of 7 - 20 kg / m 2 ): with an approx. 30% occupancy, the reverberation time only increases below 63 Hz to slightly higher Values.
  • the front plate with its vibrations can to a certain extent "adapt" to the spatial and temporal structure of the room modes and thus optimally deform and resonate due to its completely free mobility.
  • this forced resonance is most pronounced in the corners and edges of the rectangular spaces, in which the airborne sound energy is concentrated at the low frequencies of the lowest eigenmodes of the room.
  • a front panel supported at most at the 4 corners is so low (at least below 10 Hz) with its lowest natural frequency f 1.0 according to [10] that every room mode between 50 and 100 Hz finds adjacent panel modes with which it can vibrate coupled.
  • GI for the plate supported on two opposite edges at a distance L, use GI.
  • the back plate not only acts as a self-resilient element with high “inner” (viscoelastic) losses but with all-round open access to the airborne sound waves also as a (in relation to airborne sound) practically rigid, but open-pored structure with As is known, high "external” friction in the transient formed Shear layers.
  • image 14a shows the plate resonator according to Figure 4.
  • Figure 14b shows that a soft foam layer 101 is arranged in the sound direction in front of the front panel 1, front panel and Pad are connected by means of an all-over adhesive 102.
  • Figure 14c shows one another possibility, namely the attachment of another thin front panel 103, the was constructed in the same way as the front panel 1, and that with the soft foam pad 101 is connected by the full-surface adhesive 104.
  • Figure 14d shows another variant, the attachment of a further soft foam layer 105 by means of an adhesive 106 the front panel 103.
  • the soft foam pads 101 and 105 are in particular for absorption at higher frequencies advantageous.
  • the design according to Figure 14c causes the second plate to be an additional one Mass and the soft foam pad 101 acts as an additional spring.
  • the soft foam pads can be of different thicknesses to sound absorb different frequencies.
  • Another particularly advantageous application of the basic idea of the invention is for larger halls or rooms with a high ceiling are particularly advantageous.
  • Figure 15a shows the plate resonator adapted for such applications.
  • the plate resonator on the back of the back plate 2 has a thin one
  • the Plate resonator according to Figure 15 a is by means of the suspensions 18 from the ceiling 5 suspended.
  • the suspensions 18 are expediently designed such that they are variable in length in the well-known false ceilings.
  • Figure 15b the plate resonator with a soft foam layer 101 is also analogous to Figure 14b equipped.
  • Figure 15c shows another way of using the Plate resonator without the plate resonator on a rigid ceiling or back wall is appropriate.
  • the plate resonator is floating in a tub 110, e.g. B. from Metal or plastic, with the tub having large holes, with a Perforated area> 30%.
  • the trough 110 is then on the supporting beams below the ceiling 111 stored.
  • Figure 15d shows a variant of 15c, where the plate 1a on the Tray 110 rests and the soft foam pad 101 floating in the tray 110 lies.
  • Fleece cover 120 shown for better handling.
  • Figure 16 shows the plate resonator as a sound absorber effective on both sides with a 2-mass / spring system
  • the back plate 2a is arranged between plates 1b and 1c is and on these plates 1a and 1c on the other side soft foam pads 101 are attached.
  • Soft foam pad, plate and back plate 2a are again using full-surface bonds bonded together and form a sandwich structure.
  • This sound absorber can again be wrapped in a fleece 120 and by means of a tub or border 110 may be suspended. This arrangement comes in for high rooms Question.
  • This sound absorber can also be used in normal high rooms and For example, be designed as a partition, wall element or room divider.
  • the Tray or border 110 should then be off the floor or one if necessary existing edition be acoustically decoupled.
  • the plate resonator not only works as an absorber (silencer) but also as Soundproofing for the rooms above, in the case of Figure 15, or the ones next to it Rooms in the case of use as a wall element or room divider.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Vibration Prevention Devices (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP96905783A 1995-02-24 1996-02-23 Plattenresonator Expired - Lifetime EP0811097B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630467T SI0811097T1 (en) 1995-02-24 1996-02-23 Plate resonator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19506511 1995-02-24
DE19506511A DE19506511C2 (de) 1995-02-24 1995-02-24 Plattenresonator
PCT/EP1996/000751 WO1996026331A1 (de) 1995-02-24 1996-02-23 Plattenresonator

Publications (2)

Publication Number Publication Date
EP0811097A1 EP0811097A1 (de) 1997-12-10
EP0811097B1 true EP0811097B1 (de) 2002-05-15

Family

ID=7754965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905783A Expired - Lifetime EP0811097B1 (de) 1995-02-24 1996-02-23 Plattenresonator

Country Status (7)

Country Link
US (1) US5975238A (ja)
EP (1) EP0811097B1 (ja)
JP (1) JPH11509934A (ja)
AT (1) ATE217665T1 (ja)
DE (2) DE19506511C2 (ja)
ES (1) ES2179934T3 (ja)
WO (1) WO1996026331A1 (ja)

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CN107208425A (zh) 2015-02-11 2017-09-26 可耐福石膏两合公司 用于共振吸声的干墙结构
JP6043407B2 (ja) * 2015-02-27 2016-12-14 富士フイルム株式会社 防音構造、及び防音構造の製造方法
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Also Published As

Publication number Publication date
EP0811097A1 (de) 1997-12-10
ATE217665T1 (de) 2002-06-15
ES2179934T3 (es) 2003-02-01
DE19506511C2 (de) 1998-08-27
US5975238A (en) 1999-11-02
WO1996026331A1 (de) 1996-08-29
JPH11509934A (ja) 1999-08-31
DE59609217D1 (de) 2002-06-20
DE19506511A1 (de) 1996-08-29

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