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基于被动控制理论,提出一种新型的金属变摩擦耗能阻尼器。通过改变金属摩擦面的摩擦面积,使摩擦系数具有随位移改变而变化的特性。在金属摩擦学理论的基础上,建立了金属变摩擦耗能器的阻尼力计算模型与产品的开发。理论计算与实验数据表明:新型金属变摩擦耗能器的减震性能显著优于常规阻尼器,避免了传统阻尼装置(如油阻尼器)存在的造价高、维护复杂、易漏油的问题;克服了常规摩擦耗能器不能在不同大小荷载作用下保持同样控制效果的缺点,能做到抗震耗能器在不同荷载下保持很好的抗震效果,真正做到“小震小位移少耗能,大震大位移多耗能”的智能控制。
Based on the theory of passive control, a new type of variable friction energy damper is proposed. By changing the friction area of the metal friction surface, the friction coefficient has the characteristics of changing with the displacement change. Based on the theory of metal tribology, the calculation model and product development of damping force of metal variable friction energy dissipater are established. The theoretical calculation and experimental data show that the new type of metal frictional energy dissipator has significantly better damping performance than the conventional damper, avoiding the problems of high cost, complicated maintenance and oil leakage of the traditional damping device (such as oil damper) The utility model overcomes the defect that the conventional friction energy dissipator can not maintain the same control effect under the load of different sizes and the seismic energy dissipater can maintain good anti-seismic effect under different loads and realizes that the small displacement of the small vibration consumes less Can, big earthquake displacement more energy "intelligent control.