Fuzzy Control Algorithm of Structural Vibration in Civil Engineering

摘要

As more and more multi-storey buildings rise from the ground, how to reduce the vibration of buildings in earthquakes has become a research and debate issue. Vibration control of civil engineering structures is an emerging discipline developed after the traditional seismic and wind resistance design methods. Structural control is divided into passive control, active control and semi-active control. They use non-portable control devices to apply control forces to slow the vibration response of the structure itself. Using appropriate control methods to control these devices is the focus of the investigation. In this paper, the experimental verification method is used to test the mechanical vibration of civil engineering structures. The following results are obtained. When the maximum displacement error is 1cm, the prediction rate is 88%; the maximum speed error is 0.1m/s, and the prediction rate is 77%; The maximum acceleration error is 0.2m/s, and the prediction rate is 81%. This shows that the moment when the response of displacement, speed, and acceleration is the largest is also the moment of greater error, and because the speed and acceleration change more drastically than displacement, the error is slightly larger than displacement, but this situation only occurs at fewer moments. Most of the time the prediction effect is still quite good.