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The vibration control of flexible object that has multiple modes is studied in this paper. Two EI shapers based on Zero-placement technique are introduced firstly and then they are used to reduce the residual vibration of flexible structure. Different from the available method, this method does not design shaper for every mode but design a shaper based on nominal mode so all modes locate on the allowable...
Because of the long distance between the last finishing mill and the X-ray thickness gauge, there was a long delay time for the AGC system to get the gauge error information feedback, which has some negative effect on the control of strip thickness, so the monitor AGC was not a control system in time. According to the virtual model fitted by true measured parameters, the Smith predictor in the monitor...
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