A Fine Analysis Method for Parameter Space of Structural Vibration Active Control System

Abstract

The invention discloses a fine analysis method for the parameter space of an active control system for structural vibration. The method takes the active control system model with multiple time delays in the field of modern structural vibration control engineering as the research object, and studies the optimal combination of state information and control parameters. , to illustrate the mixing delay effect. The fine analysis method of the parameter space of the structure active control system provided by the present invention, in the past research on the time-delay effect in the active control of structural vibration, usually examines the influence of the time-delay on the stable domain and its boundary, or for a given time-delay, Investigate its influence on the control effect. Based on the fine structure diagram, the present invention expounds the influence law of different time-delay combinations on various control performance indicators, reveals which control performance indicators can be optimized through time-delay combinations, and clarifies which time-delay combinations can be optimized. The combination of delays is beneficial to improve the control effect, and the time delay that is beneficial to improve the control effect is given.

Description

technical field [0001] The invention relates to the technical field of active control of structural vibration, in particular to a fine analysis method for the parameter space of an active control system of structural vibration. Background technique [0002] With the application of active control technology in structural vibration control and the increasing requirements for control design, the fine structure and mixed time-delay effect of structural vibration active control system parameter space have become basic theoretical topics that urgently need to be studied in depth. High-rise buildings Structures are prone to vibrations caused by strong winds, earthquakes, etc. In order to improve the safety and comfort of building structures, it is necessary to control the structure to suppress its vibration. However, passive control has narrow effective control frequency bands, poor applicability, and low control efficiency. Disadvantages: With the improvement of people's requireme...

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem that time lag is unavoidable in the process of applying active control to structural vibration. There are often multiple time lag phenomena in the active control system of structural vibration. The influence of time lag on active control of structure has two sides. It may cause the actuator to input energy to the system when the system does not need energy, resulting in a decrease in control efficiency or instability of the controlled system