一种橡胶剪切阻尼器动静态力学特性实验研究

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一种橡胶剪切阻尼器动静态力学特性实验研究
  
【英文篇名】 EXPERIMENTAL STUDY ON STATIC AND DYNAMIC MECHANICAL PROPERTIES OF A NEW RUBBER SHEARING DAMPER
【作者中文名】 吴新如; 华心; 王波;
【作者英文名】 WU XinRu HUA Xin WANG Bo（Department of Engineering Mechanics; School of Aerospace; Applied Mechanics Laboratory （AML）; Tsinghua University; Beijing 100084; China）;
【作者单位】 清华大学航天航空学院工程力学系;
【文献出处】 机械强度, Journal of Mechanical Strength, 编辑部邮箱 2011年 01期  
! e. U, q8 O% J4 I- \4 j期刊荣誉：中文核心期刊要目总览  ASPT来源刊  CJFD收录刊
【关键词】 橡胶剪切阻尼器; 力学特性; 桥梁吊杆; 实验检测与分析; 减震性能;
【英文关键词】 Rubber shearing damper; Mechanical property; Suspended staff; Experimental detect and analysis; Aseismic performance;
【摘要】 对大桥吊杆用橡胶剪切型阻尼器的静动态特性进行9组实验检测研究。研究结果表明,该类橡胶阻尼器的静态试验特性受橡胶与钢板连接方式影响,其主要原因是受橡胶黏弹性呈现出的非线性力学特性所致。因此,橡胶的厚度对拉伸或压缩位移量的响应也呈非线性关系,这种影响程度在10%左右;而动态特性试验表明,阻尼器刚度K′随橡胶长度增长而增大,3种加载频率f(0.5Hz、1Hz、2Hz)对其动态特性影响不大,但随位移加载振幅值(±3mm、±10mm)增大而刚度有所降低;橡胶长度对损耗因子η影响不大。所测刚度、剪切弹性模量、损耗因子及等效黏性系数Ceq均满足工程技术标准。
【英文摘要】 The tests of static and dynamic mechanical properties were carried out based on the 9 series samples of new type rubber dampers.These experimental results indicated that the static mechanical properties of new rubber damper depended strongly on its structure type of rubber and holding steel plates and the thickness of rubber,on which affects by the viscous behavior of rubber.Therefore,the response of thickness of rubber on tensile and compress behavior expresses a weaker nonlinear relation.This effect error...

growchen

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