权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

THEORETICAL AND EXPERIMENTAL APPLICATION OF ACTIVE VIBRATION CONTROL TO BRIDGE VIBRATION UNDER TRAFFICLOADS BY SEVERAL CONTROL LAWS

交通荷载下桥梁振动主动振动控制的理论与实验应用

基本信息

批准号：
06650525
负责人：
OKABAYASHI Takatoshi
金额：
$ 1.28万
依托单位：
Nagasaki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650525/
关键词：
Bridge vibration Road environment Vibration control Active control Control law Traffic loads 交通荷重

项目摘要

In nearby urban elevated highway bridges, the ground vibrations caused by the traffic induced vibrations affect the buildings. This project studies the active vibration control to the traffic induced vibrations by the several control laws. In order to the realize active vibration control for the elevated bridges, we need to solve the problems as follows.(1) to predict the state variables of the moving vehicles from the informations obtained by the observation points of the bridge.(2) to obtain the optimal control laws for the time variant systems.(3) to develop the actuator to generate the desirable control forces.Results obtained in this project are summarized as follows :(1) Applying the Kalman filter to the bridge-vehicle-road system, we can predict the state variables of the bridge-vehicle system from the informations of one observation point on the bridge. By combing the optimal feedback control and the Kalman filter, the stochastic control law can be formulated.(2) A new control law for the time variant system can be obtained by expanding the instantaneous optimal control theory. The effectiveness of the control law is confirmed by the numerical simulations.(3) The trial construction of actuator was done. We did the vibration control tests of the pedestrian bridge using by the actuator. On the results of the test, the effectiveness of the actuator is ascertained.

在附近的城市高架公路桥梁中，交通引起的振动引起的地面振动会对建筑物产生影响。本项目研究了多种控制律对交通诱发振动的主动振动控制。为了实现高架桥梁的主动振动控制，我们需要解决以下问题：(1)根据桥梁观测点获得的信息预测移动车辆的状态变量。(2)获得时变系统的最优控制律。(3)开发执行器以产生期望的控制力。本项目取得的成果总结如下：(1)应用将卡尔曼滤波器应用到桥-车-路系统中，可以根据桥上某一观测点的信息来预测桥-车系统的状态变量。将最优反馈控制与卡尔曼滤波器相结合，可以建立随机控制律。(2)通过扩展瞬时最优控制理论，可以得到新的时变系统控制律。数值模拟验证了控制律的有效性。(3)进行了执行机构的试制。我们利用执行器对人行天桥进行了振动控制测试。根据测试结果，确定了执行器的有效性。