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Crane open loop optimal anti-rocking control method

A control method and crane technology, applied in the direction of cranes, etc., can solve the problems of property loss, equipment damage, affecting the safety of crane operation, etc., and achieve the effects of improving automation, fast response speed, improving adaptability and engineering applicability

Inactive Publication Date: 2018-09-28
WUHAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

Excessive anti-sway distance will seriously affect the operation safety of the crane, especially during the crane stop process. Excessive anti-sway distance may cause equipment damage and property loss

Method used

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  • Crane open loop optimal anti-rocking control method
  • Crane open loop optimal anti-rocking control method
  • Crane open loop optimal anti-rocking control method

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] An open-loop optimized anti-sway control method for a crane, comprising the following steps:

[0026] S1, such as figure 2 , Figure 5 As shown, set the final running speed v of the car 1max =1m / s, obtain the speed running curve of the trolley under the rope length of k meters, k is a different natural number;

[0027] S2. Fit all the speed running curves obtained in step S1 to obtain the speed fitting equation v 1 =(P 0 t+b 0 ),P 0 is the initial determinant coefficient matrix, b 0 is the initial determinant constant term, 0≤t≤t f , t f Optimum acceleration running time for the t...

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Abstract

The invention discloses a crane open loop optimal anti-rocking control method. Based on the crane kinetic analysis, crane operation state parameters are used as boundary constraint conditions to realize anti-rocking control of shortest crane operation distance, shortest acceleration or deceleration operation time and optimal operation trajectory; and a mathematical model among the crane operationspeed, the operation time and the lifting rope length is built synchronously based on the numerical value analysis and the computer simulation technology. The open loop optimal control method is builtbased on optimal operation distance and acceleration or deceleration time; and the control method has the characteristics of short anti-rocking distance, high response speed and the like, can effectively inhibit the load deflection, improves the crane operation safety and operation stability, is simple in implementation, easy to realize engineering application and high in control precision, and facilitates the crane intelligent and automatic transportation.

Description

technical field [0001] The invention belongs to the technical field of crane intelligent control, and in particular relates to a crane open-loop optimized anti-sway control method. Background technique [0002] The crane system is composed of a cart operating mechanism, a trolley operating mechanism and a lifting operating mechanism. It has a simple structure and can realize the transportation of goods very conveniently. Therefore, it is widely used in metallurgical manufacturing, steel production, processing workshops, biopharmaceuticals, garbage disposal and other places. range of applications. However, the crane is an under-damped flexible control system. During the operation of the crane, if the speed of the crane changes, the load will inevitably swing, which will seriously affect the safety of the crane. At the same time, after the running mechanism stops running, the load will swing for a long time, which seriously reduces the working efficiency of the crane. Crane ...

Claims

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Application Information

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IPC IPC(8): B66C23/48
Inventor 汪小凯吴庆祥华林祝红亮徐强危刚
Owner WUHAN UNIV OF TECH
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