An active continuous control method and its experiment on the rapid suppression of inverted pendulum structure oscillation. (17th March 2022)

• Record Type: Journal Article
• Authors: Chu, Wei; Li, Chaofeng; Zhang, Guobin
• Is Part Of: Journal of sound and vibration. Volume 521(2022)
• Publication Date: 2022-03-17
• Subjects: Inverted pendulum -- Active control -- Moving mass -- Simulation -- Experiment; Sound -- Periodicals; Vibration -- Periodicals; Son -- Périodiques; Vibration -- Périodiques; Sound; Vibration; Periodicals; Electronic journals; 620.205
• DOI: 10.1016/j.jsv.2021.116691
• Languages: English
• ISSNs: 0022-460X

Abstract

Highlights: A new active continuous control method for the mass motion trajectory is proposed. System equivalent damping ratio is derived for the first time. An experiment platform corresponding to the proposed model is built. System parameters have a considerable influence on the suppression of the pendulum. Abstract: Aiming at the oscillation control problem of inverted pendulum structures in engineering, we propose an inverted pendulum model with a moving mass, and study the use of the mass to move on the pendulum to suppress the oscillation of the pendulum. The system mechanics are analysed firstly and the preliminary control strategy of the mass' motion is obtained. The real-time angle of the pendulum is used as the input and an active continuous control method based on simple harmonic function is given. Moreover, the energy equivalent damping ratio of the system with a moving mass is derived. The relationship between system parameters, motion parameters and the damping ratio is obtained through simulation. Then, we build an experimental platform corresponding to the proposed model to further prove the results' reliability. The experimental results verify the method's effectiveness, and the same conclusions are obtained as the system equivalent damping simulation results.