PVDD装置多参数性能试验与隔震新体系控制分析  

Multi-parameter Performance Tests of PVDD and Control Analysis of Novel Combined Isolation System

作　　者：付伟庆 李通 史明妹 李茂 徐菁[1] FU Weiqing;LI Tong;SHI Mingmei;LI Mao;XU Jing(School of Civil Engineering,Qingdao University of Technology,Qingdao,266033,China;Co-operative Innovation Center of Engineering Construction and Safety in Shandong Peninsula Blue Economic Zone,Qingdao University of Technology,Qingdao,266033,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]青岛理工大学蓝色经济区工程建设与安全协同创新中心,青岛266033

出　　处：《振动．测试与诊断》2023年第1期37-43,196,共8页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(52178488);山东省自然科学基金资助项目(ZR202103060268)。

摘　　要：为研究被动变阻尼装置(passive variable damping device,简称PVDD)耗能性能和出力过程与多项参数设计的关系,对装置的不同形状控制阀和预压力值进行了性能试验。结果表明:孔型对装置最大阻尼力和出力过程产生影响,不同阻尼孔形状组合后可实现装置宽幅值、多出力过程的设计输出;预压力值对变阻尼启动条件产生影响,装置启动前表现为普通黏滞阻尼器,启动后可实现变阻尼力输出。将PVDD与隔震支座组合为隔震新体系,针对9层Benchmark模型进行了不同孔型和预压力值下结构控制效果的数值计算分析。结果表明:隔震新体系具有更好的减震效果;不同孔型的装置对不同形式地震有不同的控制效果;初始预压力使速度响应控制范围整体向后平移,装置有效控制区间得到最大利用。该研究成果对PVDD的设计应用具有参考和指导作用。In order to study the energy dissipation performance and output process of passive variable damping device(PVDD) and related to the design of multiple parameters, the performance test of different shape control valves and pre-pressure values of the device are carried out. The results show that the hole pattern has an influence on the maximum damping force and output process of the device, and the design output of the wide amplitude and multi-output process of the device can be realized after the combination of different damping hole shapes. The pre-pressure value has an influence on the variable damping starting conditions, and the device is shown as an ordinary viscous damper before starting, and the variable damping force output can be realized after starting. The PVDD and seismic isolation support are combined into a new seismic isolation system, and the numerical calculation and analysis of the structural control effect under different hole shapes and prepressure values were carried out for the nine-story Benchmark model. The results show that the new seismic isolation system has better damping effect. Different hole devices have different control effects on different earthquake forms. The initial pre-pressure shifts the velocity response control range backward as a whole, and the effective control range of the device is utilized to the maximum. The research results can provide reference and guidance for the design and application of PVDD.

关 键 词：被动变阻尼装置 多参数设计 性能试验 组合隔震 减震性能 

分 类 号：TH703.62[机械工程—仪器科学与技术] TU352.1[机械工程—精密仪器及机械]