DE2605476A1 - Vibration damper with out of phase resistance - has vibration sensors producing functional signals linked to analogue computer - Google Patents
Vibration damper with out of phase resistance - has vibration sensors producing functional signals linked to analogue computerInfo
- Publication number
- DE2605476A1 DE2605476A1 DE19762605476 DE2605476A DE2605476A1 DE 2605476 A1 DE2605476 A1 DE 2605476A1 DE 19762605476 DE19762605476 DE 19762605476 DE 2605476 A DE2605476 A DE 2605476A DE 2605476 A1 DE2605476 A1 DE 2605476A1
- Authority
- DE
- Germany
- Prior art keywords
- vibration damping
- elastic
- vibration
- active vibration
- drive elements
- 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.)
- Pending
Links
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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
PatentbeschreibungPatent description
Titel: "Aktive Schwingungsdämpfung elastischer Antriebselemente" Mechanische Bauelemente zur übertragung von Kräften und Bewegungen werden entweder nach ausreichender mechanischer Festigkeit oder nach zulässiger elastischer Deformation dimensioniert.Title: "Active vibration damping of elastic drive elements" Mechanical Components for the transmission of forces and movements are either after sufficient mechanical strength or dimensioned according to permissible elastic deformation.
Bei schlanken Bauelementen, wie sie z.B. bei Hebezeugen verwendet werden, können auch bei ausraichenderBiegefestigkeit von Konstruktionsstäben deren Biegeschwingungen zu unerträglichenStörungen fuhren. Da derartige Biegeschwingungen wegen der guten Elastizität des Stabmaterials nur eine geringe Eigendämpfung aufweisen, stellen sich z.B. bei motorisch angetriebenen Mechanismen mit Positions- und Laufgeschwindigkeit oder Kraftrückführung bei grösserer Verstärkung des Regelkreises angefachte mechanische Schwingungen ein, die das Pegelsystemunbrauchbar machen.With slim components, such as those used in hoists can also be used with sufficient flexural strength of construction rods Flexural vibrations lead to unbearable disturbances. Since such flexural vibrations due to the good elasticity of the rod material have only a low level of internal damping, arise e.g. with motor-driven mechanisms with position and running speed or force feedback with greater amplification of the control loop fanned mechanical Vibrations that make the level system unusable.
Um schwingungsfähige elastische Bauelemente (1) aktiv zu bedämpfen, werden erfindungsgemäss Motore verwendet, die periodiscKräfte geeigneter Amplitude und Phase auf das schwingungsfähige Bauteil so ausüben, dass dem System Schwingungsenergie entzogen wird. Häufig lassen sich die Antriebsmotore (2) für die einzelnen Freiheitsgrade durch eine zusätzlich oszillierende Kraft gleichzeitig zum Antrieb und zur Schwingungsdämpfung benützen. Die oszillierende Kraft F darf dabei nicht mit der Durchfederung S in Phase sein, weil dies nur eine änderungder-Eigenfrequenz des Schwingungssystemes bewirken würde, da die mittlereOszillatorleistung L bei 90° Phasenverschiebung zwischen F und 5 ist. In order to actively damp vibratory elastic components (1), according to the invention, motors are used which exert periodic forces of suitable amplitude and phase on the vibratable component in such a way that vibrational energy is withdrawn from the system. Often the drive motors (2) for the individual degrees of freedom can be used simultaneously for drive and vibration damping by an additional oscillating force. The oscillating force F must not be in phase with the deflection S because this would only cause a change in the natural frequency of the oscillation system, since the mean oscillator power L is between F and 5 at a phase shift of 90 °.
Um dem System durch die oszillierende Kraft F Schwingungsenergie zu entziehen, muss F und 5 in Phase, d.h. F und S um 900 phasenverschoben sein.To the system through the oscillating force F vibration energy withdraw, F and 5 must be in phase, i.e. F and S must be 900 out of phase.
Erfindungsgemäss sollen~mittels besonderer Sensoren Signale gewonnen werden, die mit 5 in Phase sind. Dies können z.B. sein: a) Geschwindigkeitssensoren (3), die im Schwingungsbauch des Konstruktionsstabes (1) montiert sind, und die direkt Signals proportional S liefern.According to the invention, signals are to be obtained by means of special sensors who are in phase with 5. These can be, for example: a) speed sensors (3), which are mounted in the antinode of the construction rod (1), and the directly supply signal proportional to S.
b) Beschleunigungssensoren -(4), die ebenfalls im Schwingungsbauch mon tiert sind und die 5 liefern.b) Accelerometers - (4), which are also in the antinode are assembled and deliver the 5.
c) Drehmomentensensoren (5), die das zu 6 proportionale Drehmoment im Schwingungsknoten messem.c) Torque sensors (5), the torque proportional to 6 messem in the vibration node.
Aus S muss in den Fällen b) und c) mittels Analogrechner ein zu 8 um 900 voreilendes und somit zu S in Phase schwingendes Signal gebildat werden. Da bei der Integration des messtechnisch zugänglichen S , nur bis auf eine unbestimmte Integrationskonstante definiert ist, kann das mit 5 gleichphasige Dämpfungssignal nur durch Differentiation von S erhalten werden. Somit ist das Regelverhalten dieser aktiven bedämpfen Schwingungssystemes durch eine Differentialgleichung 3.In cases b) and c), S must be converted to 8 using an analog computer Signal leading by 900 and thus oscillating in phase with S can be formed. As with the integration of the metrologically accessible S, only with the exception of an indefinite one Integration constant is defined, the damping signal in phase with 5 can only be obtained by differentiating S. Thus, the control behavior is this active damping vibration system by a differential equation 3.
nung beschrieben, dsrsn Lösungen nur für bestimmte Parameter gedämpft sind.tion described, dsrsn solutions damped only for certain parameters are.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762605476 DE2605476A1 (en) | 1976-02-12 | 1976-02-12 | Vibration damper with out of phase resistance - has vibration sensors producing functional signals linked to analogue computer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762605476 DE2605476A1 (en) | 1976-02-12 | 1976-02-12 | Vibration damper with out of phase resistance - has vibration sensors producing functional signals linked to analogue computer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2605476A1 true DE2605476A1 (en) | 1977-08-18 |
Family
ID=5969654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762605476 Pending DE2605476A1 (en) | 1976-02-12 | 1976-02-12 | Vibration damper with out of phase resistance - has vibration sensors producing functional signals linked to analogue computer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2605476A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2902376A1 (en) * | 1978-01-24 | 1979-07-26 | Gelij Michailovitsch Ivanov | DEVICE FOR VIBRATION DAMPING |
DE3142424A1 (en) * | 1980-10-27 | 1982-07-08 | Aktiebolaget Bofors, 69180 Bofors | DEVICE REDUCTION DEVICE |
EP0062767A1 (en) * | 1981-04-08 | 1982-10-20 | Krupp Stahl Aktiengesellschaft | Electric arc furnace |
DE4234928A1 (en) * | 1992-10-16 | 1994-04-21 | Heidelberger Druckmasch Ag | Device and method for damping mechanical vibrations of printing machines |
US5596931A (en) * | 1992-10-16 | 1997-01-28 | Heidelberger Druckmaschinen Ag | Device and method for damping mechanical vibrations of a printing press |
DE19620439C2 (en) * | 1995-05-30 | 2001-02-01 | Siemens Ag | Process for damping mechanical vibrations |
WO2002045891A1 (en) * | 2000-12-08 | 2002-06-13 | Sandvik Aktiebolag | Method and device for the damping of vibration in a cutting tool |
DE10204763A1 (en) * | 2002-02-05 | 2003-08-14 | Kuesters Eduard Maschf | Method for actively damping vibrations in a device for processing a running web, device suitable for carrying out this method and roller suitable for use in this device |
EP1493985A1 (en) * | 2003-07-02 | 2005-01-05 | Giat Industries | Device for the active attenuation of vibrations of a gun |
-
1976
- 1976-02-12 DE DE19762605476 patent/DE2605476A1/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2902376A1 (en) * | 1978-01-24 | 1979-07-26 | Gelij Michailovitsch Ivanov | DEVICE FOR VIBRATION DAMPING |
DE3142424A1 (en) * | 1980-10-27 | 1982-07-08 | Aktiebolaget Bofors, 69180 Bofors | DEVICE REDUCTION DEVICE |
EP0062767A1 (en) * | 1981-04-08 | 1982-10-20 | Krupp Stahl Aktiengesellschaft | Electric arc furnace |
DE4234928A1 (en) * | 1992-10-16 | 1994-04-21 | Heidelberger Druckmasch Ag | Device and method for damping mechanical vibrations of printing machines |
US5596931A (en) * | 1992-10-16 | 1997-01-28 | Heidelberger Druckmaschinen Ag | Device and method for damping mechanical vibrations of a printing press |
DE19620439C2 (en) * | 1995-05-30 | 2001-02-01 | Siemens Ag | Process for damping mechanical vibrations |
WO2002045891A1 (en) * | 2000-12-08 | 2002-06-13 | Sandvik Aktiebolag | Method and device for the damping of vibration in a cutting tool |
KR100844095B1 (en) * | 2000-12-08 | 2008-07-04 | 산드빅 인터렉츄얼 프로퍼티 에이비 | Method and device for the damping of vibration in a cutting tool |
US7647853B2 (en) | 2000-12-08 | 2010-01-19 | Sandvik Akiebolag | Metal cutting apparatus and method for damping feed-back vibrations generated thereby |
DE10204763A1 (en) * | 2002-02-05 | 2003-08-14 | Kuesters Eduard Maschf | Method for actively damping vibrations in a device for processing a running web, device suitable for carrying out this method and roller suitable for use in this device |
EP1493985A1 (en) * | 2003-07-02 | 2005-01-05 | Giat Industries | Device for the active attenuation of vibrations of a gun |
FR2857071A1 (en) * | 2003-07-02 | 2005-01-07 | Giat Ind Sa | DEVICE FOR ACTIVE AMORTIZATION OF A SECONDARY MOTORIZED ARM |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |