一种新型隔震器的研制  

New Type of Vibration Isolator

作　　者：张克猛[1] 范晓军[1] 黄幼玲[1] 

机构地区：[1]西安交通大学建筑工程与力学学院,西安710049

出　　处：《西安交通大学学报》2002年第1期70-73,93,共5页Journal of Xi'an Jiaotong University

基　　金：教育部"教育振兴行动计划"资助项目

摘　　要：以平行四边形机构作为基本构架 ,采用滑动摩擦作为阻尼 ,研制出了集隔震、防风与复位功能为一体的滚摆式隔震器 ,并建立了隔震器的力学模型和控制方程 .数值计算和实验测量的结果表明 :对具有破坏性的地震 ,安装该隔震器后的低层建筑物可削减地震动加速度达 80 %以上 .由分析比较可见 ,数值计算和实验测量结果具有很好的一致性 .由于弹簧刚度系数的取值直接影响到滑动摩擦力的大小 ,故必须对其进行优化设计 ,方可获得最佳的减震效果 .所编制的计算程序可用来指导该类隔震器的研制和产品开发 .Utilizing parallelogrammic mechanism as basic structure, and adopting sliding friction as damping, a new type of multifunctional rolling pendulous vibration isolator was developed. The isolator serves the function of vibration isolation, wind protection and reposition. The mathematical model and control equations of the isolator is presented by the classical mechanics method. The numerical and experimental results show that if subjected to destructive earthquake, the acceleration of low structures installed the new isolators can be decreased by more than 80 percent. Comparison between the numerical and experimental results show that good agreement is obtained from these two different results. As the value of the spring striffness has a direct effect on the value of sliding friction force, optimization of spring stiffness is necessary to obtain the optimum vibration isolation effect. A computer code is developed, and the software can be used to guide the research and development of such rolling pendulous isolator.

关 键 词：滚摆式隔震器 数值分析 实验研究 平行四边形机构 建筑结构 力学模型 控制方程 

分 类 号：TU352.12[建筑科学—结构工程]