一种新型滑移式摩擦摆支座模型及耗能研究

A New Sliding-Type Friction Pendulum Bearing Model and Energy Consumption Research

对于传统滑移隔震支座存在滑移量大且无法自回复的弊端,设计一种新型的具有自回复功能的滑移式摩擦摆支座。详细地介绍了支座的结构、隔震耗能原理,通过有限元软件ABAQUS对两种工况下的支座进行非线性静态接触分析,对支座进行了理论上的校核。重点研究分析了支座在简谐振动下摩擦耗能情况,得出该新型支座相较于传统摩擦摆支座具有较强的摩擦耗能性能,且有更小的位移量和自回复功能。同时也研究分析了支座参数拨叉间隙量d0、摩擦系数μ分别对支座耗能的影响,得到了参数与耗能的关系曲线图。

For the traditional slip-isolated isolation bearing, there was a disadvantage of large slippage and self-recovery. A new sliding-type friction pendulum bearing with self-recovery function was designed. The structure of the support and the principle of energy isolation for vibration isolation are introduced in detail. The nonlinear static contact analysis of the bearings under two working conditions was carried out by the finite element software ABAQUS, and the bearing was theoretically checked. The key research was to analyzes the frictional energy consumption of the bearing under simple harmonic vibration. It is concluded that the new bearing has stronger frictional energy dissipation performance than the traditional friction swing bearing, and has a smaller displacement and self-recovery function. At the same time, the influence of the bearing parameter shift amount d0 and the friction coefficient μ on the energy consumption of the support is also researched. And obtained a graph of the relationship between parameters and energy consumption.