Swing suppression control method for double-pendulum tower crane with distributed mass load
A tower crane, distributed mass technology, applied in the direction of load hanging components, transportation and packaging, etc., can solve problems such as complex dynamic model of the system
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Embodiment 1
[0058] In the past, underactuated crane positioning and anti-sway control was mostly aimed at the bridge crane system. Even for a multi-degree-of-freedom bridge crane moving in three-dimensional space, the dynamic nature of its drive mechanism is still a linear force, and the dynamic characteristics are still simple. The control is convenient, but when there are different driving forces in the crane transportation task, such as the control of the tower crane studied in the present invention, one direction is the translational force of the trolley, and the other direction is the rotational force of the cantilever; at this time, Due to the participation of centrifugal motion, the dynamic characteristics of the system become very complicated. At the same time, when the mass of the load and the hook are similar, or the suspension rope and the length of the suspension rope are similar, the double pendulum characteristics of the crane system are more obvious. In addition, due to the ...
Embodiment 2
[0191] refer to Figure 5-7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. In order to better verify the technical effect adopted in the method of the present invention, the traditional controller LQR is selected in this embodiment to carry out Test, compare the test results with the means of scientific demonstration, to verify the real effect of this method.
[0192] refer to Figure 7, in order to conduct experiments, this embodiment builds an experimental platform, which is composed of PC, control board, servo motor driver, trolley, cantilever, and swing angle measurement mechanism. On the host computer, compile and generate code through MATLAB / Simulink Then through the control board (DSP), with a sampling period of 0.005s, and then through the serial port communication to monitor and record the experimental data on the control board in real time, the position signal of the drive part comes from the counti...
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