Performance analysis of mechanical vibration suppression control system for motor drives with elastic load based on frequency response

Vibration suppression in servo systems is significant in high-precision motion control. This paper describes a vibration-suppression method based on input shaping and adaptive model-following control. First, a zero vibration input shaper is used to suppress the vibration caused by an elastic load to obtain an ideal position output. Then, a configuration that combines input shaping with model-following control is developed to suppress the vibration caused by changes of system parameters. Finally, analyzing the percentage residual vibration reveals that it is effective to employ the sum of squared position error as a criterion. Additionally, a golden-section search is used to adjust the parameters of a compensator in an online fashion to adapt to the changes in the vibration frequency. A comparison with other input shaper methods shows the effectiveness and superiority of the developed method.

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FREQUENCY RESPONSE MEASUREMENTS OF THE EBWR AUTOMATIC STEAM BY-PASS VALVE CONTROL SYSTEM

10.2172/4339953 ◽

1957 ◽

Author(s):

J.A. Jr. DeShong ◽

E.S. Beckjord

Keyword(s):

Control System ◽

Frequency Response ◽

Valve Control

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Comparative performance analysis for two tanks liquid level control system with various controllers using matlab

International Journal of Latest Trends in Engineering and Technology ◽

10.21172/1.72.555 ◽

2016 ◽

Vol 7 (2) ◽

Keyword(s):

Control System ◽

Performance Analysis ◽

Liquid Level ◽

Level Control ◽

Comparative Performance ◽

Level Control System ◽

Liquid Level Control

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Simulation and Parameter Optimization for Vibration Control System of MLRS Launcher

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.668-669.526 ◽

2014 ◽

Vol 668-669 ◽

pp. 526-531

Author(s):

Xian Zhao ◽

De Qing Luo

Keyword(s):

Control System ◽

Control Mechanism ◽

Vibration Suppression ◽

Structural Parameters ◽

Pulse Frequency ◽

Structure Parameter ◽

Pulse Control ◽

Lateral Direction ◽

Parameter Values ◽

Rocket System

Vibration suppression of the launcher is an important way to improve the firing accuracy of Multiple Launch Rocket System (MLRS). In order to get a better control result from the course that pulse control mechanism generates pulses to restrain the vibration of MLRS launcher, this paper analyzed the process that pulse thruster control the vibration of launcher under the modulation of pulse width and pulse frequency (PWPF) modulator. And the simulation model of the control system is established through the SIMULINK software in MATLAB. Under repeated modifications of the structural parameters of PWPF modulator, the influence laws of these parameters are found out, and the best structure parameter values are obtained. The final simulation result shows that the vibration in the pitch and lateral direction is greatly reduced. It is a big help to improve the firing accuracy of MLRS.

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