黏弹性阻尼器滞回曲线及特征参数的相似准则

发布时间：2018-03-21 05:50

本文选题：消能减震　切入点：黏弹性阻尼器　出处：《中南大学学报(自然科学版)》2014年12期 　论文类型：期刊论文

【摘要】：对不同尺寸、不同温度的黏弹性阻尼器滞回曲线的力和位移相似关系进行研究和推导,并得出黏弹性阻尼器储能刚度、耗能、等效阻尼等特征参数的相似关系。然后利用3种不同尺寸的黏弹性阻尼器,对试样VE40×40在不同温度下、试样VE100×100和VE400×400在不同应变下进行性能测试,验证上述相似准则的正确性。研究结果表明:基于此相似准则,只要通过试验获取黏弹性阻尼器中一种尺寸阻尼器的滞回曲线及其温度相关性,就可以容易地获得同种材料、其他各种尺寸阻尼器在不同温度下的滞回曲线及特征参数。提出的黏弹性阻尼器相似准则可以使此类阻尼器方便地应用于各类研究及工程设计中。
[Abstract]:The relationship between force and displacement of hysteretic curves of viscoelastic dampers with different sizes and temperatures is studied and deduced, and the energy storage stiffness and energy dissipation of viscoelastic dampers are obtained. Using three kinds of viscoelastic dampers of different sizes, the properties of VE40 脳 40 samples at different temperatures and samples VE100 脳 100 and VE400 脳 400 under different strains were tested. The results show that the hysteretic curve and temperature dependence of a size damper in viscoelastic damper can be easily obtained based on the similarity criterion. The hysteretic curves and characteristic parameters of other dampers of various sizes at different temperatures. The proposed similarity criterion of viscoelastic dampers can be applied to various kinds of research and engineering design conveniently.
【作者单位】：同济大学土木工程防灾国家重点实验室;
【基金】：国家自然科学基金项目资助(51322803,51261120377) 上海市青年科技启明星项目(13QA1403700)~~
【分类号】：TU352.1

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