中国机械工程2016，Vol.27Issue(9)：1208-1214,7.DOI:10.3969/j.issn.1004-132X.2016.09.012
识别黏弹性阻尼材料力学参数用约束阻尼试件设计方法
Design Methods of Constrained Damping Specimen Used in Measurement of Viscoelastic Damping Material’s Mechanics Parameters
摘要
Abstract
The sandwich specimens with supplemental structural damping were frequently used in the measurement of mechanics parameters of viscoelastic material with low stiffness through flexural resonating cantilever beam method (FRCBM),so appropriate designed specimens might assure the accuracy of experimental results.Through sensitivity analysis,influence coefficient was proposed and used in the precision analysis of experimental results which were affected by the measurement accuraG cy of thickness ratio,resonance frequency ratio,density ratio and loss factor of the specimen,and some significant technical specifications were proposed to help design specimens.Finally,the applicaG bility of the sandwich specimens used in the measurement of viscoelastic material’s mechanics paramG eters through FRCBM was analyzed.关键词
黏弹性阻尼材料/试件设计/灵敏度分析/影响系数/约束阻尼结构Key words
viscoelastic material/specimen design/sensitivity analysis/influential coefficient/constrained damping structure分类
交通工程引用本文复制引用
王超,吕振华,顾叶青..识别黏弹性阻尼材料力学参数用约束阻尼试件设计方法[J].中国机械工程,2016,27(9):1208-1214,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2006AA110103) （863计划）
国家自然科学基金资助项目(51490664) （51490664）
