金属橡胶阻尼器滞回性能及其动态模型研究

发布时间：2018-04-26 16:52

本文选题：金属橡胶阻尼器 + 滞回性能　；参考：《哈尔滨工业大学》2014年硕士论文

【摘要】：为使金属橡胶在土木工程振动控制领域得到广泛的应用，本文利用其良好的阻尼性能，研制了板式和筒式两种金属橡胶剪切摩擦阻尼器，并对其分别进行了动态性能试验。通过阻尼器的性能试验得出其各个材料因素对其滞回性能的影响，并根据试验结果提出金属橡胶剪切摩擦阻尼器的Bouc-Wen模型，并对该模型进行参数识别。本文主要研究内容如下： (1)对金属橡胶块进行准静态单向循环压缩试验，对准静态下的参数影响进行分析；改进原来的板式金属橡胶阻尼器并对其进行动态性能研究，得出金属橡胶材料参数对其滞回性能的影响。研究发现：相对密度越大，丝径越小，滞回性能越好。此外还对金属橡胶阻尼器进行了等幅疲劳加载试验，推导出阻尼器的S-N曲线，发现该阻尼器具有非常好的疲劳性能。 (2)设计筒式金属橡胶阻尼器，并且进行不同工况下的动态性能试验，得出不同材料因素对其性能的影响。并通过与板式阻尼器进行比较，，找出更优秀的阻尼器进行下一步的数值模拟和研究。 (3)根据试验和相关理论对阻尼器进行Bouc-Wen模型的建模和参数识别，提出适用于该阻尼器的最优参数，得出适合于该阻尼器的Bouc-Wen模型，并利用阻尼器的试验数据验证该模型的正确性。
[Abstract]:In order to make metal rubber widely used in the field of civil engineering vibration control, two kinds of metal rubber shear friction dampers, plate type and cylinder type, have been developed by using their good damping properties, and their dynamic properties have been tested. The effects of various material factors on the hysteretic properties of the damper are obtained through the performance tests of the damper. According to the experimental results, the Bouc-Wen model of the metal rubber shear friction damper is proposed, and the parameters of the model are identified. The main contents of this paper are as follows: 1) the quasi-static unidirectional cyclic compression test of the metal rubber block is carried out to analyze the influence of the parameters on the static state, and the original plate metal rubber damper is improved and its dynamic performance is studied. The effect of metal rubber material parameters on hysteretic properties was obtained. It is found that the larger the relative density, the smaller the wire diameter and the better hysteretic performance. In addition, the constant amplitude fatigue loading test of the metal rubber damper is carried out, and the S-N curve of the damper is deduced. It is found that the damper has very good fatigue performance. (2) the cylindrical metal rubber damper is designed, and the dynamic performance of the damper is tested under different working conditions, and the influence of different material factors on its performance is obtained. By comparing with the plate dampers, we find out the better dampers for further numerical simulation and research. (3) according to the experiment and relevant theory, the Bouc-Wen model of the damper is modeled and identified, and the optimal parameters suitable for the damper are put forward, and the Bouc-Wen model suitable for the damper is obtained. The validity of the model is verified by the experimental data of the damper.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU352.1

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