JPS6464996A - Centerrest control method of rotary type crane - Google Patents
Centerrest control method of rotary type craneInfo
- Publication number
- JPS6464996A JPS6464996A JP21915987A JP21915987A JPS6464996A JP S6464996 A JPS6464996 A JP S6464996A JP 21915987 A JP21915987 A JP 21915987A JP 21915987 A JP21915987 A JP 21915987A JP S6464996 A JPS6464996 A JP S6464996A
- Authority
- JP
- Japan
- Prior art keywords
- speed control
- hanging cargo
- control pattern
- productivity
- enhanced
- 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.)
- Granted
Links
Landscapes
- Jib Cranes (AREA)
Abstract
PURPOSE: To enhance operational safety and productivity by forming a speed control system in which feedback control is combined with open-loop control, and enabling swing preventing control over the entire section of movement of hanging cargo. CONSTITUTION: When hanging cargo is moved by a rotary crane to a target point by inputting commands from a microcomputer 7 and a control panel 6 and signals of detectors 3-5 for rotation angle, derricking angle, and position, the angular velocity of turning is varied in accordance with a preset speed control pattern so that the hanging cargo stands still at the completion of acceleration and deceleration. At the same time, linearization is effected near a target track as determined by the speed control pattern, and an optimum regulator is constructed to effect state feedback so that the target track determined by the speed control pattern is held over an entire area of movement so that the hanging cargo is prevented from swinging. Thus, adverse effects of the parameter errors of a dynamic model of the crane are seldom exercised, and safety and productivity can be enhanced as positioning accuracy is enhanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21915987A JPH0712906B2 (en) | 1987-09-03 | 1987-09-03 | Steady stop control method for swing crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21915987A JPH0712906B2 (en) | 1987-09-03 | 1987-09-03 | Steady stop control method for swing crane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6464996A true JPS6464996A (en) | 1989-03-10 |
JPH0712906B2 JPH0712906B2 (en) | 1995-02-15 |
Family
ID=16731125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21915987A Expired - Lifetime JPH0712906B2 (en) | 1987-09-03 | 1987-09-03 | Steady stop control method for swing crane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0712906B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008120596A (en) * | 2006-10-17 | 2008-05-29 | Liebherr-Werk Nenzing Gmbh | Control system for jib crane |
CN114084799A (en) * | 2021-11-22 | 2022-02-25 | 徐州建机工程机械有限公司 | Triple protection system and method for multi-lifting synchronous safety control of tower crane |
-
1987
- 1987-09-03 JP JP21915987A patent/JPH0712906B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008120596A (en) * | 2006-10-17 | 2008-05-29 | Liebherr-Werk Nenzing Gmbh | Control system for jib crane |
CN114084799A (en) * | 2021-11-22 | 2022-02-25 | 徐州建机工程机械有限公司 | Triple protection system and method for multi-lifting synchronous safety control of tower crane |
Also Published As
Publication number | Publication date |
---|---|
JPH0712906B2 (en) | 1995-02-15 |
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