Data-Driven Vibration Control Strategy for Hypergravity Centrifugal Shaking Table

Abstract

The hypergravity centrifugal shaking table is widely used in the field of civil engineering, which has the scaling effect and is the most effective means of studying the disaster effect of geotechnical earthquake. The compound control of hypergravity centrifugal shaking table is mainly composed of two parts: position servo control and acceleration vibration control. The position servo control is used to ensure that the shaking table works in a safe working area, and the acceleration vibration control is helpful to further improve the seismic wave reproduction ability of the shaking table. Due to the complexity and diversity of the working conditions of the shaking table, it is proved that under the premise of robust position loop control, the vibration control strategy of the acceleration ring of the hypergravity centrifugal shaking table based on the data-driven idea can effectively improve the vibration control accuracy of the hypergravity centrifugal shaking table. At the same time, the vibration control strategy is only based on the current working state of the shaking table. Therefore, It has stronger adaptive control ability.