EP0467783A1 - Procédé de contrôle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre - Google Patents

Procédé de contrôle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre Download PDF

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Publication number
EP0467783A1
EP0467783A1 EP91401997A EP91401997A EP0467783A1 EP 0467783 A1 EP0467783 A1 EP 0467783A1 EP 91401997 A EP91401997 A EP 91401997A EP 91401997 A EP91401997 A EP 91401997A EP 0467783 A1 EP0467783 A1 EP 0467783A1
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EP
European Patent Office
Prior art keywords
displacement
pendulum
load
mobile support
law
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Withdrawn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
EP91401997A
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German (de)
English (en)
French (fr)
Inventor
Patrice Genet
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.)
Caillard SA
Original Assignee
Caillard SA
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Filing date
Publication date
Application filed by Caillard SA filed Critical Caillard SA
Priority to EP93113406A priority Critical patent/EP0578280B1/fr
Publication of EP0467783A1 publication Critical patent/EP0467783A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • B66C13/063—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads electrical

Definitions

  • the present invention relates to a method for controlling the movements of a pendulum load suspended from a horizontally movable support.
  • the invention also relates to devices for its implementation.
  • the invention applies in particular to port lifting devices such as cranes, gantry cranes or containers.
  • a primary objective is to precisely move from one point to another a load suspended by cables to a mobile support, such as a motorized trolley, and in particular to obtain a zero swing of the load at the end of the journey.
  • the precision of the displacement depends essentially on the control and the damping of the oscillations of the load during the displacement.
  • the object of the present invention is to remedy these drawbacks by proposing a method for controlling the movements of a pendulum load suspended from a horizontally movable support, and moved from a starting point to an ending point during a travel from predetermined duration, which allows for taking into account disturbances and pendulum length variations and which uses the power of the lifting device to the maximum in order to reduce travel times.
  • the device for controlling the movement of a pendulum load suspended from a horizontally movable support implementing the method according to the invention, associated with a lifting machine comprising lifting means and steering means, is characterized in that it comprises control and processing means receiving, on the one hand, information representative of the length of the associated pendulum, of the swing angle and of the displacement of the mobile support respectively length acquisition means, angle acquisition means and displacement acquisition means, and in return issuing lifting orders and direction orders respectively intended for lifting means and direction means , said direction orders being calculated so as to satisfy the displacement law X (t) according to the method as defined above.
  • the device for controlling the movement of a pendular load 20 suspended from a mobile support of a lifting machine 1 comprises a computer 4 receiving on the one hand, at input CL, information on the length of the pendulum from a position encoder 7, at input B, sway information from a camera 18, or any other optical analysis device, and at the CD input, information on the displacement of the mobile support or direction information, and delivering in return, at output SL, lifting orders transmitted to lifting means 6, 5, 8 of the lifting machine 1, and at output SD, direction orders transmitted to lifting means 1 direction 14, 15, 16.
  • the lifting means comprise a lifting drum 8 around which is wound a suspension cable 21 connected to the load 20, for example, a container, a reduction gear 5 and an electric motor 6, arranged according to well known techniques.
  • the lifting motor 6, with which the lifting encoder 7 is associated, is controlled, via a control line 9 and an amplifier 10, either from a lifting control lever 2 or by the computer 4, through the aforementioned SL output.
  • the steering means comprise a steering roller 16 rolling on a horizontal steering rail 17 linked to the lifting machine, a reduction gear 15 and an electric motor 14 to which a direction encoder 13 is fixed.
  • This steering motor 14 is controlled via a steering power line 12 and a power amplifier 11, either from a steering control lever 3, or by the computer 4, through the aforementioned SD output.
  • the swing angle is measured by a camera 18 secured to the movable support and the objective of which is directed vertically downwards, the pendulum load 20 being fitted with an optical beacon 19 emitting a beam directed upwards.
  • FIG. 2 The general diagram of a container handling and lifting machine 30 that can be fitted with a movement control device according to the invention is given in FIG. 2.
  • the port lifting device 30 comprises, according to known techniques, a gantry 35 to which a horizontal boom structure 33 is connected.
  • a mobile carriage 34 can be moved horizontally in a direction X along the arrow 33.
  • a container 31 is suspended from the mobile carriage 34 by cables 32 whose variation in length allows the container 31 to move in a vertical direction Z.
  • FIG. 4 illustrates the main geometric variables taken into account in the implementation of the method according to the invention.
  • the variable x represents the horizontal displacement of the carriage or mobile support 40.
  • a perpendicular load 41 is suspended from the mobile carriage 40 by a cable of length l .
  • the cable is inclined at an angle ⁇ relative to the vertical, the pendulum load 41 having a gap y relative to said vertical.
  • the instantaneous displacement of the pendulum load 41 is represented by a variable X equal to the sum x + y.
  • the displacement of the suspension point of the load 41, and therefore the displacement of the mobile support 40 is determined by expressing the dynamic balance of the pendulum load:
  • X ⁇ (t) y l (g 1- ( y l ) 2- l ⁇ ) g being the acceleration of gravity.
  • Equation (1) calculates the displacement X (t) as a function of the maximum acceleration ⁇ and the travel time T, while equation (2) calculates the difference y as a function of the derivative second l ⁇ of the instantaneous length of the pendulum associated with the load and the acceleration X ⁇ (t).
  • the position x of the carriage 40 is determined, with reference to FIG. 1, using the encoder 13, for example an incremental encoder, mounted on the shaft of the steering motor 14.
  • variable l is determined by the encoder 7 mounted on the shaft of the lifting motor 6 while the variable y is calculated from the angle ⁇ and the length l via the optical system constituted by the camera 18 and tag 19.
  • This tag 19 constitutes a light source which creates a light spot on the sensitive element of the camera 18 which in return delivers a signal proportional to the angle ⁇ .
  • the computer 4 can then determine the theoretical value of the difference y and the instantaneous real position X of the pendulum load 41.
  • a first block 61 illustrates the calculation of the theoretical displacement X (t) according to the invention.
  • This theoretical displacement X (t) is compared to the actual displacement X equal to the sum of the displacement x of the carriage 40 ( Figure 4) and of the product l.sin ⁇ of the instantaneous length l of the pendulum and the sine of the swing angle ⁇ , this sum being represented by block 67.
  • the difference ⁇ 1 between the theoretical displacement X (t) and the actual displacement X is derived at 62.
  • the speed is then regulated (block 65) at the level of the steering motor 14 (FIG. 1).
  • the effective displacement x of the carriage causes a swinging of angle ⁇ (block 66).
  • Such control ensured a substantially zero swing at the end of the pendulum load path.
  • the method according to the invention moreover allows a relative optimization of the duration T of the path of the pendulum load. For a given distance D to be covered, it is possible to vary the period T of the maximum acceleration continuously.
  • VMAX the journey time T and the maximum acceleration ⁇ can then be determined. On the other hand, if this limitation is reached, a phase at VMAX speed is undertaken. A maximum acceleration and a distance traveled at VMAX speed are also determined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control And Safety Of Cranes (AREA)
  • Control Of Position Or Direction (AREA)
EP91401997A 1990-07-18 1991-07-17 Procédé de contrôle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre Withdrawn EP0467783A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93113406A EP0578280B1 (fr) 1990-07-18 1991-07-17 Procédé de contrÔle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9009145A FR2664885B1 (fr) 1990-07-18 1990-07-18 Procede de controle de deplacement d'une charge pendulaire et dispositif pour sa mise en óoeuvre.
FR9009145 1990-07-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP93113406.8 Division-Into 1991-07-17

Publications (1)

Publication Number Publication Date
EP0467783A1 true EP0467783A1 (fr) 1992-01-22

Family

ID=9398842

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91401997A Withdrawn EP0467783A1 (fr) 1990-07-18 1991-07-17 Procédé de contrôle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre
EP93113406A Expired - Lifetime EP0578280B1 (fr) 1990-07-18 1991-07-17 Procédé de contrÔle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93113406A Expired - Lifetime EP0578280B1 (fr) 1990-07-18 1991-07-17 Procédé de contrÔle de déplacement d'une charge pendulaire et dispositif pour sa mise en oeuvre

Country Status (5)

Country Link
EP (2) EP0467783A1 (el)
DE (3) DE467783T1 (el)
ES (2) ES2029975T1 (el)
FR (1) FR2664885B1 (el)
GR (1) GR920300044T1 (el)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596330A1 (de) * 1992-11-03 1994-05-11 Siemens Aktiengesellschaft Anordnung zum messtechnischen Erfassen von Lastpendelungen bei Kranen
FR2698344A1 (fr) * 1992-11-23 1994-05-27 Telemecanique Dispositif de régulation du transfert d'une charge suspendue.
FR2703347A1 (fr) * 1993-04-02 1994-10-07 Telemecanique Dispositif de transfert d'une charge suspendue.
GB2280045A (en) * 1993-07-15 1995-01-18 Daewoo Engineering Company Anti-swing automatic control systems for unmanned overhead cranes
WO1996013455A1 (de) * 1994-10-26 1996-05-09 Siemens Aktiengesellschaft Anordnung zum messtechnischen erfassen von lastpendelungen bei kranen
US5819962A (en) * 1993-03-05 1998-10-13 Mitsubishi Jukogyo Kabushiki Kaisha Apparatus for stopping the oscillation of hoisted cargo
CN1043334C (zh) * 1994-03-28 1999-05-12 三菱重工业株式会社 一种卷扬物件摇摆阻尼控制装置
US6541004B1 (en) 1997-03-21 2003-04-01 Drugabuse Sciences, Inc. Cocaethylene immunogens and antibodies
CN108238550A (zh) * 2018-02-02 2018-07-03 北京市政建设集团有限责任公司 一种起重吊装作业时支撑体系失稳的应急控制方法
CN110963409A (zh) * 2019-11-29 2020-04-07 北京航天自动控制研究所 一种轮胎吊机器视觉自动纠偏偏差测量方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI91239C (fi) * 1993-02-01 1998-07-20 Kimmo Hytoenen Menetelmä ja laitteisto nosturin toiminnan ohjaamiseksi
JPH10139367A (ja) * 1996-11-07 1998-05-26 Mitsubishi Heavy Ind Ltd 吊荷の振れ変位検出装置
DE10029579B4 (de) * 2000-06-15 2011-03-24 Hofer, Eberhard P., Prof. Dr. Verfahren zur Orientierung der Last in Krananlagen
DE102005005358A1 (de) * 2005-02-02 2006-08-10 Siemens Ag Bediengerät für ein Regallager, insbesondere ein Regalbediengerät für ein Hochregallager, sowie ein Verfahren zur Steuerung des Bediengerätes
US7831333B2 (en) 2006-03-14 2010-11-09 Liebherr-Werk Nenzing Gmbh Method for the automatic transfer of a load hanging at a load rope of a crane or excavator with a load oscillation damping and a trajectory planner
DE502006005975D1 (de) 2006-03-15 2010-03-11 Liebherr Werk Nenzing Verfahren zum automatischen Umschlagen von einer Last eines Kranes mit Lastpendelungsdämpfung und Bahnplaner
FI120789B (fi) * 2008-06-23 2010-03-15 Konecranes Oyj Menetelmä nopeussäädettävän nostinkäytön moottorin pyörimisnopeuden ohjaamiseksi ja nostinkäyttö
DE102015008506A1 (de) 2015-07-03 2017-01-05 Gebhardt Fördertechnik GmbH Maschinenvorrichtung, die aus einer impulsförmigen Antriebsbelastung zu Schwingungen neigt, insbesondere Regalbediengerät, Fertigungsmaschine, Roboter, Kran oder dergleichen, und Verfahren zum Betreiben einer derartigen Vorrichtung
EP3653562A1 (de) * 2018-11-19 2020-05-20 B&R Industrial Automation GmbH Verfahren und schwingungsregler zum ausregeln von schwingungen eines schwingfähigen technischen systems

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088462A1 (el) * 1970-05-09 1972-01-07 Siemens Ag
DE2316810A1 (de) * 1972-04-14 1973-10-18 Asea Ab Anordnung bei kraenen zur bestimmung der abweichung des lastbefestigungsorgans von einer definierten lotrechten linie
DE2751823A1 (de) * 1976-11-29 1978-06-01 Asea Ab Anordnung zur lastschwingungshemmenden steuerung von kranen
EP0089662A1 (de) * 1982-03-22 1983-09-28 Fried. Krupp Gesellschaft mit beschränkter Haftung Einrichtung an Hebezeugen für die selbsttätige Steuerung der Bewegung des Lastträgers mit Beruhigung des Pendels der an ihm hängenden Last
WO1986002341A1 (fr) * 1984-10-11 1986-04-24 Bertin & Cie. Procede et dispositif pour limiter le ballant d'une charge librement suspendue sous un support mobile
DE3627580A1 (de) * 1985-08-16 1987-03-05 Hitachi Ltd Verfahren zum steuern eines krans

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088462A1 (el) * 1970-05-09 1972-01-07 Siemens Ag
DE2316810A1 (de) * 1972-04-14 1973-10-18 Asea Ab Anordnung bei kraenen zur bestimmung der abweichung des lastbefestigungsorgans von einer definierten lotrechten linie
DE2751823A1 (de) * 1976-11-29 1978-06-01 Asea Ab Anordnung zur lastschwingungshemmenden steuerung von kranen
EP0089662A1 (de) * 1982-03-22 1983-09-28 Fried. Krupp Gesellschaft mit beschränkter Haftung Einrichtung an Hebezeugen für die selbsttätige Steuerung der Bewegung des Lastträgers mit Beruhigung des Pendels der an ihm hängenden Last
WO1986002341A1 (fr) * 1984-10-11 1986-04-24 Bertin & Cie. Procede et dispositif pour limiter le ballant d'une charge librement suspendue sous un support mobile
DE3627580A1 (de) * 1985-08-16 1987-03-05 Hitachi Ltd Verfahren zum steuern eines krans

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE: "IEEE INTERNATIONAL CONFERENCE ON CONTROL AND APPLICATIONS PROCEEDINGS" no. 164460, 1989, IEEE, NEW YORK(US) Pages WA-3-5/1 à WA-3-5/5. *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596330A1 (de) * 1992-11-03 1994-05-11 Siemens Aktiengesellschaft Anordnung zum messtechnischen Erfassen von Lastpendelungen bei Kranen
US5491549A (en) * 1992-11-03 1996-02-13 Siemens Aktiengesellschaft Apparatus for acquiring pendulum oscillations of crane loads using measurement techniques
FR2698344A1 (fr) * 1992-11-23 1994-05-27 Telemecanique Dispositif de régulation du transfert d'une charge suspendue.
US5490601A (en) * 1992-11-23 1996-02-13 Telemecanique Device for controlling the transfer of a load suspended by cables from a carriage movable in translation in a lifting machine
US5819962A (en) * 1993-03-05 1998-10-13 Mitsubishi Jukogyo Kabushiki Kaisha Apparatus for stopping the oscillation of hoisted cargo
FR2703347A1 (fr) * 1993-04-02 1994-10-07 Telemecanique Dispositif de transfert d'une charge suspendue.
GB2280045A (en) * 1993-07-15 1995-01-18 Daewoo Engineering Company Anti-swing automatic control systems for unmanned overhead cranes
CN1043334C (zh) * 1994-03-28 1999-05-12 三菱重工业株式会社 一种卷扬物件摇摆阻尼控制装置
WO1996013455A1 (de) * 1994-10-26 1996-05-09 Siemens Aktiengesellschaft Anordnung zum messtechnischen erfassen von lastpendelungen bei kranen
US6541004B1 (en) 1997-03-21 2003-04-01 Drugabuse Sciences, Inc. Cocaethylene immunogens and antibodies
CN108238550A (zh) * 2018-02-02 2018-07-03 北京市政建设集团有限责任公司 一种起重吊装作业时支撑体系失稳的应急控制方法
CN110963409A (zh) * 2019-11-29 2020-04-07 北京航天自动控制研究所 一种轮胎吊机器视觉自动纠偏偏差测量方法

Also Published As

Publication number Publication date
DE467783T1 (de) 1992-07-23
EP0578280A2 (fr) 1994-01-12
ES2029975T1 (es) 1992-10-16
DE69119913D1 (de) 1996-07-04
DE578280T1 (de) 1994-10-06
EP0578280B1 (fr) 1996-05-29
GR920300044T1 (en) 1992-08-26
DE69119913T2 (de) 1996-12-19
FR2664885B1 (fr) 1995-08-04
ES2090795T3 (es) 1996-10-16
EP0578280A3 (el) 1994-03-02
FR2664885A1 (fr) 1992-01-24

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