EP0818374A1 - Profilé extrudé avec des pièces intercalaires d'amortissement compressibles - Google Patents

Profilé extrudé avec des pièces intercalaires d'amortissement compressibles Download PDF

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Publication number
EP0818374A1
EP0818374A1 EP97110368A EP97110368A EP0818374A1 EP 0818374 A1 EP0818374 A1 EP 0818374A1 EP 97110368 A EP97110368 A EP 97110368A EP 97110368 A EP97110368 A EP 97110368A EP 0818374 A1 EP0818374 A1 EP 0818374A1
Authority
EP
European Patent Office
Prior art keywords
damping
profile
profiles
cavities
cross
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.)
Withdrawn
Application number
EP97110368A
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German (de)
English (en)
Inventor
Heinz Dipl.-Ing. Steinegger
Klaus Dipl.-Ing. Hofmann
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP97110368A priority Critical patent/EP0818374A1/fr
Publication of EP0818374A1 publication Critical patent/EP0818374A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/18—Internal lining, e.g. insulating
    • B61D17/185—Internal lining, e.g. insulating for sound insulating
    • 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

Definitions

  • the present invention discloses a method for Damping of hollow aluminum profiles for wagon construction Filling cavities.
  • Aluminum hollow profiles are lightweight and very rigid components and are as such in modern wagon construction ideally suited for the individual construction of a Car body support structure. However, when using them also their properties with regard to heat conduction and Consider acoustic behavior. With the undamped aluminum hollow profile a bending vibration excited somewhere without Spread the weakening over the whole structure and hereby one cause unwanted strong sound radiation in the listening area. Of the inherently good heat conduction of aluminum is used constructively as thin-walled webs as possible between the inner and outer wall counteracted. However, the heat transport still remains from the warmer to the colder side and vice versa Rotation of the trapped air in the cavities, caused by the convection effect.
  • the basic solution is filling the Cavities with porous material. This will make it a smaller one Thermal conductivity achieved by preventing thermal convection and will, depending on the physical and chemical properties the filling, achieved an appropriate sound insulation.
  • EP 0 461 215 describes a sound-absorbing composite Noise reduction in vehicle construction.
  • Sheet metal or plastic becomes a flexible heavy foil with a associated viscoelastic pad
  • the Heavy film with a variety of edged textured Support elements between the vibratable component and the Bottom of the heavy foil is a labyrinth of voids with acoustic effective cavities.
  • thermal insulation composite is in for a floor coating Provided and suitable for vehicles and can for a Cavity insulation should not be used for hollow profiles.
  • the invention is characterized inter alia by in that the Damping materials as a composite damping profile outside of damping cavities prefabricated with individual cross sections and in compressed form in the cavities to be damped be pushed
  • damping profiles are prefabricated as composite panels and tailored to the required cross-sectional shapes and lengths resp. composed.
  • the damping profile is two or three layers with one outer insulation layer and a subsequent support layer built up, with the outer insulation layer made of PUR heavy foam closed surface and the support layer of open-pore, highly elastic PUR foam with delayed Reset behavior after compression exists.
  • Fig. 1 shows a half cross section of the supporting structure a double-decker wagon 1, which by means of extruded Aluminum hollow profiles 2 is constructed.
  • 3 that is circled Hollow profile called, which is the transition from the bottom part to the side wall.
  • the hollow profile 3 has several cavities with different cross-sectional shapes. About half of the Cavities are dampened with an appropriate filling.
  • the Cavities point to four different ones in this example Cross-sectional shapes, which with the capital letters A-D are designated.
  • the cross sections of these cavities are trapezoidal and triangular.
  • the profile cavities in the vertical The side walls here are square and rectangular and with the Capital letters E and F.
  • the games with the Window openings are labeled "windows”.
  • the structure of a damping profile 4 can be seen from FIG. With 5 the actual damping layer is designated, which so is arranged that this only on the inside of a Profile inner skin 10 and a profile outer skin 11 is present.
  • the middle layer of the damping profile 4 is made of support foam 6 formed, and this support foam 6 has the task of Damping layer 5 to press permanently on their contact surface.
  • Material for the damping layer 5 is, for example, a filled PUR heavy foam with closed oil and gasoline resistant Surface used, with a layer thickness of some Millimeters is provided.
  • the support foam 6 is preferably a open-pore, highly elastic PUR foam. So the support effect for the damping layer 5 over the entire operating time one The wagon structure preserved is an excess of the cross section of the damping profile 4 of, for example, up to 20%.
  • the partial view of a wagon side according to Figure 4 shows quasi as X-ray image of the arrangement of the damping profiles 4 and in particular the places where no damping profiles 4 may be.
  • Such recessed locations are above the window openings 7, in close to a door opening 8 and where apparatus 13 in the Sidewall are installed.
  • the cavities above the windows 7 are required for the installation of sun blinds, for example.
  • Another method for pre-compression is also a mechanical compression of the damping profiles 4 with subsequent storage under pressure possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP97110368A 1996-07-11 1997-06-25 Profilé extrudé avec des pièces intercalaires d'amortissement compressibles Withdrawn EP0818374A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97110368A EP0818374A1 (fr) 1996-07-11 1997-06-25 Profilé extrudé avec des pièces intercalaires d'amortissement compressibles

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96810449 1996-07-11
EP96810449 1996-07-11
EP97110368A EP0818374A1 (fr) 1996-07-11 1997-06-25 Profilé extrudé avec des pièces intercalaires d'amortissement compressibles

Publications (1)

Publication Number Publication Date
EP0818374A1 true EP0818374A1 (fr) 1998-01-14

Family

ID=26144225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110368A Withdrawn EP0818374A1 (fr) 1996-07-11 1997-06-25 Profilé extrudé avec des pièces intercalaires d'amortissement compressibles

Country Status (1)

Country Link
EP (1) EP0818374A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1116638A1 (fr) * 2000-01-17 2001-07-18 Hitachi, Ltd. Bogie de véhicule ferroviaire avec dispositif de réduction des vibrations
EP1266815A1 (fr) * 2001-06-11 2002-12-18 Kabushiki Kaisha Kobe Seiko Sho Structure d'amortissement à double paroi
FR2983815A1 (fr) * 2011-12-12 2013-06-14 Peugeot Citroen Automobiles Sa Dispositif ameliore de limitation de la propagation d'ondes acoustiques au sein d'un corps creux d'un vehicule automobile tel qu'un longeron du vehicule
DE102015214670A1 (de) * 2015-07-31 2017-02-02 Siemens Aktiengesellschaft Verfahren zum Dämmen einer Wandungsplatte und Wandungseinheit
EP3231669A1 (fr) * 2016-04-11 2017-10-18 Volvo Car Corporation Élément d'isolation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407116A1 (fr) * 1977-10-25 1979-05-25 Daimler Benz Ag Procede et dispositif de remplissage a la mousse des espaces vides des carrosseries
DE8707140U1 (de) * 1987-05-18 1987-09-10 Pelzer, Helmut, 58313 Herdecke Füllkörper zur akustischen Abdichtung rohrförmiger Körper
DE3842890A1 (de) * 1987-12-21 1989-06-29 Toyota Motor Co Ltd Waermehaertbares, geschaeumtes dichtungsmaterial
WO1993011001A1 (fr) * 1991-12-03 1993-06-10 Stankiewicz Gmbh Corps de remplissage en forme de piece moulee pour l'obturation de cavites difficilement accessibles
EP0610859A1 (fr) * 1993-02-08 1994-08-17 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Profilé d'amortissement des vibrations, son procédé de fabrication, et élément de construction pour véhicule de transport

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407116A1 (fr) * 1977-10-25 1979-05-25 Daimler Benz Ag Procede et dispositif de remplissage a la mousse des espaces vides des carrosseries
DE8707140U1 (de) * 1987-05-18 1987-09-10 Pelzer, Helmut, 58313 Herdecke Füllkörper zur akustischen Abdichtung rohrförmiger Körper
DE3842890A1 (de) * 1987-12-21 1989-06-29 Toyota Motor Co Ltd Waermehaertbares, geschaeumtes dichtungsmaterial
WO1993011001A1 (fr) * 1991-12-03 1993-06-10 Stankiewicz Gmbh Corps de remplissage en forme de piece moulee pour l'obturation de cavites difficilement accessibles
EP0610859A1 (fr) * 1993-02-08 1994-08-17 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Profilé d'amortissement des vibrations, son procédé de fabrication, et élément de construction pour véhicule de transport

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1116638A1 (fr) * 2000-01-17 2001-07-18 Hitachi, Ltd. Bogie de véhicule ferroviaire avec dispositif de réduction des vibrations
EP1266815A1 (fr) * 2001-06-11 2002-12-18 Kabushiki Kaisha Kobe Seiko Sho Structure d'amortissement à double paroi
US6708626B2 (en) 2001-06-11 2004-03-23 Kobe Steel, Ltd. Double-walled damping structure
EP1607298A3 (fr) * 2001-06-11 2007-05-02 Kabushiki Kaisha Kobe Seiko Sho Structure d'amortissement à double paroi
FR2983815A1 (fr) * 2011-12-12 2013-06-14 Peugeot Citroen Automobiles Sa Dispositif ameliore de limitation de la propagation d'ondes acoustiques au sein d'un corps creux d'un vehicule automobile tel qu'un longeron du vehicule
DE102015214670A1 (de) * 2015-07-31 2017-02-02 Siemens Aktiengesellschaft Verfahren zum Dämmen einer Wandungsplatte und Wandungseinheit
EP3231669A1 (fr) * 2016-04-11 2017-10-18 Volvo Car Corporation Élément d'isolation
CN107284370A (zh) * 2016-04-11 2017-10-24 沃尔沃汽车公司 隔离构件
US10272853B2 (en) 2016-04-11 2019-04-30 Volvo Car Corporation Insulation member
CN107284370B (zh) * 2016-04-11 2021-08-03 沃尔沃汽车公司 隔离构件

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