DE4330389A1 - Damping material - Google Patents
Damping materialInfo
- Publication number
- DE4330389A1 DE4330389A1 DE19934330389 DE4330389A DE4330389A1 DE 4330389 A1 DE4330389 A1 DE 4330389A1 DE 19934330389 DE19934330389 DE 19934330389 DE 4330389 A DE4330389 A DE 4330389A DE 4330389 A1 DE4330389 A1 DE 4330389A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- damping
- damping material
- fibers
- liquid
- 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- Withdrawn
Links
- 238000013016 damping Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 9
- 229920001296 polysiloxane Polymers 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/006—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium characterised by the nature of the damping medium, e.g. biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Die Erfindung betrifft einen Dämpfungsstoff, bestehend aus einem Kunststoff.The invention relates to a damping material consisting of a Plastic.
Es ist allgemein bekannt, daß für die Dämpfung von Schwingungen Kunst stoffe eingesetzt werden (Stoeckhert Kunststofflexikon, Carl Hanser Verlag München Wien 1992). Dabei wird die Fähigkeit der Kunststoffe ausgenützt, bei Wechselbeanspruchung einen Teil der mechanischen Schwingungsenergie als Folge ihres nicht elastischen Verhaltens in Wärme umzusetzen.It is generally known that art for damping vibrations materials are used (Stoeckhert Kunststofflexikon, Carl Hanser Verlag München Vienna 1992). The ability of plastics exploited, part of the mechanical Vibrational energy as a result of their inelastic behavior in To implement heat.
In diesem Zusammenhang ist auch bekannt, daß für viele Anwendungsfälle die Dämpfung von Kunststoffen nicht ausreicht. In derartigen Fällen werden dann oftmals andere Dämpfungsmittel wie Flüssigkeits- oder Reibungsdämpfer eingesetzt.In this context it is also known that for many applications the damping of plastics is not sufficient. In such cases are often other damping agents such as liquid or Friction damper used.
Die Flüssigkeitsdämpfung, beispielsweise angewendet als Squeeze-Film- Dämpfer, benutzt die dämpfende Wirkung eines ölgefüllten Spaltes. Der Nachteil dieser Dämpfungsart liegt darin, daß das flüssige Dämpfungs medium eine aufwendige Abdichtung erfordert.Liquid damping, used for example as a squeeze film Damper, uses the dampening effect of an oil-filled gap. Of the The disadvantage of this type of damping is that the liquid damping medium requires a complex seal.
Der Reibungsdämpfer, der die zwischen Reibflächen auftretenden Rei bungskräfte zum Abschwächen entstehender Schwingungsausschläge aus nützt, hat den Nachteil, daß er aus mehreren Einzelelementen zusammen gesetzt werden muß.The friction damper, which the Rei occurring between friction surfaces forces to weaken the resulting vibrations has the disadvantage that it consists of several individual elements must be set.
Es ist daher Aufgabe der Erfindung, die dämpfende Wirkung von Kunst stoffen mit den Vorteilen der Flüssigkeitsdämpfung und/oder den Vor teilen der Reibungsdämpfung zu verbinden. It is therefore an object of the invention, the dampening effect of art substances with the advantages of liquid damping and / or the advantages share the friction damping to connect.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß im Kunststoff in feinverteilter Form eine viskose Flüssigkeit eingelagert ist.According to the invention the object is achieved in that in plastic finely divided form a viscous liquid is stored.
Dadurch wird eine wesentliche Verstärkung der Dämpfungswirkung des Kunststoffes erreicht. Das mechanische Verhalten des Kunststoffes mit der eingelagerten Flüssigkeit kann in grober Näherung mit einem Modell aus parallel geschalteter Feder und viskosem Dämpfer beschrieben werden, wie es allgemein für Kunststoffe im linearen Bereich visko elastischer Verformung gilt, bei dem der Dämpfer sehr stark ausgebil det ist.As a result, the damping effect of the Plastic reached. The mechanical behavior of the plastic with The stored liquid can be roughly approximated using a model described from parallel spring and viscous damper be, as is generally the case for plastics in the linear range, viscous elastic deformation applies in which the damper is very strongly trained det.
Voraussetzung ist jedoch dabei, daß Kunststoff und viskose Flüssigkeit chemisch nicht miteinander reagieren. So kann die viskose Flüssigkeit beispielsweise einem Thermoplasten im geschmolzenen Zustand beige mischt werden. Im erstarrten Zustand des Thermoplast liegt dann das viskose Medium in fein verteilter Form, d. h. ein Absetzen muß unbe dingt verhindert werden, vor und sorgt für eine verbesserte Dämpfungs wirkung.However, the prerequisite is that plastic and viscous liquid do not react chemically with each other. So can the viscous liquid for example, a thermoplastic in the molten state beige to be mixed. This then lies in the solidified state of the thermoplastic viscous medium in finely divided form, d. H. discontinuation must be prevent things from happening and provide improved damping effect.
In vorteilhafter Weise ist nach Anspruch 2 vorgesehen, als viskoses Medium Silikonöl oder Silikonfett einzusetzen, d. h. hochmolekulare Stoffe mit Silizium und Sauerstoff als aufbauenden Kettengliedern. Silikone weisen bei hohen und tiefen Temperaturen eine nur geringe Temperaturabhängigkeit der Viskosität auf. Zwar ist die Einlagerung von Silikonen in Kunststoffen bereits bekannt, jedoch erfolgt diese im Gegensatz zur erfindungsgemäßen Lösung zur Beeinflussung von Reibungs verhalten und Verschleiß des Kunststoffes und nicht zur Verstärkung von dessen Dämpfungswirkung.It is advantageously provided according to claim 2, as a viscous Use medium silicone oil or silicone grease, d. H. high molecular weight Fabrics with silicon and oxygen as building links. Silicones have a low temperature at high and low temperatures Temperature dependence of the viscosity. It is storage of silicones in plastics already known, but this is done in In contrast to the solution according to the invention for influencing friction behavior and wear of the plastic and not for reinforcement of its damping effect.
In Weiterbildung der Erfindung nach Anspruch 3 ist vorgesehen, die Dämpfungswirkung des Kunststoffes weiter zu erhöhen, indem man in einem Kunststoff mit feinverteilter viskoser Flüssigkeit Fasern ein lagert. Eine Erhöhung der Dämpfungswirkung der Fasern setzt jedoch voraus, daß diese im Gegensatz zum bisher bekannten Stand der Technik nicht fest mit der Matrix verbunden sind. In a development of the invention according to claim 3 it is provided that Damping effect of the plastic to increase further by in a plastic with finely divided viscous liquid fibers stores. However, an increase in the damping effect of the fibers ahead that this in contrast to the previously known prior art are not firmly attached to the matrix.
Verformt man einen derartigen Verbundwerkstoff in Faserlängsrichtung, überträgt die Matrix die Verformungskraft bis zu einer werkstoffbe stimmten Maximalkraft elastisch. Außerdem wirkt der Verformung die Reibkraft zwischen den Fasern untereinander und zwischen Faser und Matrix entgegen. Das mechanische Verhalten des Kunststoffes mit einge lagerter Flüssigkeit und eingelagerten Fasern kann in erster grober Näherung mit einem Modell aus parallel geschalteter Feder, viskosem Dämpfer und Reibungsdämpfer beschrieben werden.If one deforms such a composite material in the longitudinal direction of the fiber, The matrix transmits the deformation force up to a material agreed maximum force elastic. The deformation also acts Frictional force between the fibers and between fibers and Opposite matrix. The mechanical behavior of the plastic with Stored liquid and stored fibers can be rough at first Approximation with a model of parallel spring, viscous Damper and friction damper are described.
Eine Erhöhung der Dämpfung eines Kunststoffes durch eingelagerte Fasern, die nicht fest mit der Matrix verbunden sind, verlangt aber nicht notwendigerweise, daß im Kunststoff auch eine Viskoseflüssigkeit eingelagert sein muß.An increase in the damping of a plastic through embedded However, fibers that are not firmly attached to the matrix are required not necessarily that in the plastic also a viscose liquid must be stored.
Nach Anspruch 4 ist vorgesehen, daß der Kunststoff ein Thermoplast, ein Duroplast oder ein Elastomer ist.According to claim 4 it is provided that the plastic is a thermoplastic, is a thermoset or an elastomer.
Die Erfindung wird an nachstehenden Ausführungsbeispielen näher erläu
tert:
Ein Silikongummi wurde in seiner Dämpfwirkung durch eingelagerte
Silikontröpfchen verstärkt. Zusätzlich wurden zu den Silikontröpfchen
in einem weiteren Silikongummi kurze Glasfasern eingelagert. Die
Dämpfungswirkung war im Silikongummi mit eingelagerten Silikonöltröp
fen und Glasfasern am größten.The invention is illustrated by the following examples:
A silicone rubber was reinforced in its damping effect by embedded silicone droplets. In addition to the silicone droplets, short glass fibers were embedded in another silicone rubber. The damping effect was greatest in silicone rubber with embedded silicone oil droplets and glass fibers.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19934330389 DE4330389A1 (en) | 1993-09-08 | 1993-09-08 | Damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19934330389 DE4330389A1 (en) | 1993-09-08 | 1993-09-08 | Damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4330389A1 true DE4330389A1 (en) | 1995-03-09 |
Family
ID=6497153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19934330389 Withdrawn DE4330389A1 (en) | 1993-09-08 | 1993-09-08 | Damping material |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4330389A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235285A1 (en) * | 2002-08-02 | 2004-02-12 | Ina-Schaeffler Kg | Belt drive motion dampening mechanism has rolling body in contact on both sides with inner face of outer body and outer face of inner body |
| WO2014080154A1 (en) * | 2012-11-23 | 2014-05-30 | The Secretary Of State Of Defence | A deformable element |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1044396B (en) * | 1957-04-04 | 1958-11-20 | Gruenzweig & Hartmann A G | Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion |
| US3477984A (en) * | 1966-09-12 | 1969-11-11 | Owens Corning Fiberglass Corp | Insulating material |
| FR2229984A1 (en) * | 1973-05-16 | 1974-12-13 | Electricite De France | Electrical insulation of fibre optic light guides - by flooding the sheath with a high dielectric liq. (silicone oil) |
| SU579291A1 (en) * | 1975-05-08 | 1977-11-05 | Предприятие П/Я М-5409 | Self-lubricating press-composition |
| DE2701181A1 (en) * | 1977-01-13 | 1978-07-20 | Picker | Resilient filling material for suspension unit - comprising suspension of fluid and hollow polymer particles with closed elastic casings (NL 17.7.78) |
| DE2650100B2 (en) * | 1976-10-30 | 1978-09-28 | Gerb Gesellschaft Fuer Isolierung Mbh & Co Kg, 1000 Berlin | |
| DE3002273A1 (en) * | 1980-01-23 | 1981-07-30 | Kollengode Narayan 5000 Köln Natarajan | Fine mica panel prodn. for electrical insulation - from aq. pulp contg. silicone resin powder and carrier impregnated with silicone liquid, emulsion or soln. |
| DE3207654A1 (en) * | 1981-03-03 | 1982-10-28 | Schiedel GmbH & Co, 8000 München | Paste-like dampener, method for its manufacture and its use |
| DE2822696C2 (en) * | 1977-06-15 | 1987-05-07 | Müanyagipari Kutató Intézet, Budapest | Process for the production of modified plastics |
| DE3640582A1 (en) * | 1986-11-27 | 1988-06-09 | Bayer Ag | POLYMERISAT POWDER CONTAINING SILICONE RUBBER, THEIR PRODUCTION AND USE AS A FLAME-RETARDANT ADDITIVE |
| DE3915066A1 (en) * | 1989-05-09 | 1990-11-15 | Bayer Ag | Stabilized polyorganosiloxanes and their use as power transfer media |
| EP0540332A1 (en) * | 1991-10-30 | 1993-05-05 | Nichias Corporation | Vibration damping material |
| DE4204200A1 (en) * | 1992-02-13 | 1993-08-19 | Daimler Benz Ag | Liq. useful as heat transfer and insulating media - comprises mixt. of poly-alpha-olefin(s) and/or isoparaffin(s) with poly:di:methyl:siloxane(s) and/or poly:alkyl -/poly:aryl:siloxane(s) |
-
1993
- 1993-09-08 DE DE19934330389 patent/DE4330389A1/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1044396B (en) * | 1957-04-04 | 1958-11-20 | Gruenzweig & Hartmann A G | Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion |
| US3477984A (en) * | 1966-09-12 | 1969-11-11 | Owens Corning Fiberglass Corp | Insulating material |
| FR2229984A1 (en) * | 1973-05-16 | 1974-12-13 | Electricite De France | Electrical insulation of fibre optic light guides - by flooding the sheath with a high dielectric liq. (silicone oil) |
| SU579291A1 (en) * | 1975-05-08 | 1977-11-05 | Предприятие П/Я М-5409 | Self-lubricating press-composition |
| DE2650100B2 (en) * | 1976-10-30 | 1978-09-28 | Gerb Gesellschaft Fuer Isolierung Mbh & Co Kg, 1000 Berlin | |
| DE2701181A1 (en) * | 1977-01-13 | 1978-07-20 | Picker | Resilient filling material for suspension unit - comprising suspension of fluid and hollow polymer particles with closed elastic casings (NL 17.7.78) |
| DE2822696C2 (en) * | 1977-06-15 | 1987-05-07 | Müanyagipari Kutató Intézet, Budapest | Process for the production of modified plastics |
| DE3002273A1 (en) * | 1980-01-23 | 1981-07-30 | Kollengode Narayan 5000 Köln Natarajan | Fine mica panel prodn. for electrical insulation - from aq. pulp contg. silicone resin powder and carrier impregnated with silicone liquid, emulsion or soln. |
| DE3207654A1 (en) * | 1981-03-03 | 1982-10-28 | Schiedel GmbH & Co, 8000 München | Paste-like dampener, method for its manufacture and its use |
| DE3640582A1 (en) * | 1986-11-27 | 1988-06-09 | Bayer Ag | POLYMERISAT POWDER CONTAINING SILICONE RUBBER, THEIR PRODUCTION AND USE AS A FLAME-RETARDANT ADDITIVE |
| DE3915066A1 (en) * | 1989-05-09 | 1990-11-15 | Bayer Ag | Stabilized polyorganosiloxanes and their use as power transfer media |
| EP0540332A1 (en) * | 1991-10-30 | 1993-05-05 | Nichias Corporation | Vibration damping material |
| DE4204200A1 (en) * | 1992-02-13 | 1993-08-19 | Daimler Benz Ag | Liq. useful as heat transfer and insulating media - comprises mixt. of poly-alpha-olefin(s) and/or isoparaffin(s) with poly:di:methyl:siloxane(s) and/or poly:alkyl -/poly:aryl:siloxane(s) |
Non-Patent Citations (1)
| Title |
|---|
| Derwent-Abstracts,Ref. 91-329275/45 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235285A1 (en) * | 2002-08-02 | 2004-02-12 | Ina-Schaeffler Kg | Belt drive motion dampening mechanism has rolling body in contact on both sides with inner face of outer body and outer face of inner body |
| WO2014080154A1 (en) * | 2012-11-23 | 2014-05-30 | The Secretary Of State Of Defence | A deformable element |
| GB2511382A (en) * | 2012-11-23 | 2014-09-03 | Secr Defence | A Deformable element |
| GB2511382B (en) * | 2012-11-23 | 2015-01-28 | Secr Defence | A Deformable element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |