A Trajectory Planning Method for Variable Speed Drop of Composite Press
A technology of trajectory planning and composite materials, which is applied in general control systems, instruments, adaptive control, etc., can solve the problems of slow planning speed and inability to achieve effective vibration reduction in the output trajectory, so as to weaken pressure vibration and realize accurate identification and suppression. The effect of fast planning of vibration trajectory and avoiding motion impact
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[0040] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0041] A trajectory planning method for the variable-speed drop of a composite material press according to the present invention, first, control the cyclic drop of the press by comparing the proportional pilot control valve input and other differential command signals, and collect the movable beam displacement, return cylinder pressure and command signals; then, Differentiate the displacement signal of the movable beam to obtain the descending speed signal of the movable beam, and use the neural network algorithm to train the acquisition parameters to obtain the mathematical model of the oil flow of the valve; then, combine the force balance equation and flow continuity equation of the return cylinder to construct the drop The mathematical model of the system is integrated; finally, taking the error integral of the return cylinder pressure...
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