考虑流固耦合的斜拉管桥结构压电阻尼减震控制研究  

Piezoelectric Damping and Vibration Damping Control of Cable-stayed Tube Bridge Structures Considering Fluid-structure Coupling

作　　者：代建波[1,2] 马祥祥 汪浩 刘冬[1] DAI Jianbo;MA Xiangxiang;WANG Hao;LIU Dong(School of Civil Engineering,Xi'an Shiyou University,Xi'an,Shaanxi 710065,China;School of Mechanical Engineering,Xi'an Shiyou University,Xi'an,Shaanxi 710065,China)

机构地区：[1]西安石油大学土木工程学院,陕西西安710065 [2]西安石油大学机械工程学院,陕西西安710065

出　　处：《水利与建筑工程学报》2025年第1期7-15,共9页Journal of Water Resources and Architectural Engineering

基　　金：陕西省秦创原“科学家+工程师”队伍建设项目(2023KXJ-194);陕西省技术创新引导专项(基金)(2024ZC-YYDP-21)。

摘　　要：为减小流固耦合的斜拉管桥结构的地震响应,基于压电陶瓷的逆压电效应等特点,设计了一种新型压电摩擦阻尼器,并以某单塔双跨多索双管道斜拉管桥为例,建立考虑流固耦合的斜拉管桥结构有限元模型,探讨阻尼器在斜拉管桥结构中的最优安装位置及减震控制效果。结果表明:设计的新型压电变摩擦阻尼器具有良好的工作性能,阻尼力与驱动电压之间呈现较好的线性关系,建立的阻尼力-驱动电压本构模型可以用于管桥结构的压电减震控制;阻尼索在算例斜拉管桥上的最佳减震效果安装位置L为42.875 m,对应的阻尼器最佳倾斜角为41.4°;压电阻尼器在最佳安装位置,阻尼系数为50 kN·s/m时,管桥结构的位移控制效果为13.5%,加速度控制效果为33.9%。随着阻尼系数的增大,明显提高了减震效果。In order to reduce the seismic response of the fluid-structure coupled cable-stayed tube bridge structure,a new type of piezoelectric friction damper is designed and developed based on the characteristics of piezoelectric ceramics,such as the inverse piezoelectric effect,and the output force performance test of piezoelectric friction damper is carried out.By taking a single-tower,two-span,multi-cable and two-pipe cable-stayed bridge as an example,a finite element model of the cable-stayed bridge structure considering fluid-structure coupling is established to explore the optimal installation position of the damper in the cable-stayed bridge structure and the effect of seismic control.The experimental results are as follows.The new piezoelectric variable friction damper has good working performance,and the linear relationship between the damping force and the driving voltage is good,and the established damping force-driving voltage intrinsic model can be used for the piezoelectric damping control of the pipe bridge structure;the optimal damping installation position of the damping cable in the cable-stayed pipe bridge is 42.875 m,and the corresponding optimal tilt angle of the damper is 41.4°;the optimal installation position of the dampers at the optimal damping angle is 41.4°;the optimal installation position of the dampers at the optimal damping angle is 41.4°;the piezoelectric damper at the optimal installation position with a damping coefficient of 50 kN·s/m,the displacement control effect of the tube bridge structure is 13.5%,and the acceleration control effect is 33.9%,which significantly improves the damping effect with the increase of the damping coefficient.

关 键 词：斜拉管桥结构 压电变摩擦阻尼器 流固耦合 减震率 减震控制 

分 类 号：TE88[石油与天然气工程—油气储运工程]