固体低频内耗力学模型及其测量研究  

On the Mechanical Models and Measurment of Low Frequency Internal Friction in Solids

作　　者：周正存[1] 杜洁[1] 杨洪[1] 严勇健[1] 顾苏怡[1] 

机构地区：[1]苏州市职业大学机电工程学院,江苏苏州215104

出　　处：《苏州市职业大学学报》2013年第2期16-23,48,共9页Journal of Suzhou Vocational University

基　　金：江苏省"青蓝工程"资助项目;江苏省教育厅高校科研成果产业化推进项目(JHZD2012-48);苏州市工业科技指导性计划(应用基础研究)资助项目(SGZ2012058)

摘　　要：综述了固体低频内耗的力学模型及其测量的研究进展.固体的内耗有滞弹性和粘弹性内耗,低频内耗常用的测量方法有自由衰减法和强迫振动法.固体内耗的典型力学模型有两参量和三参量的Voigt模型和Maxwell模型,都可用来描述固体内耗,但都有一定局限性,目前还没有一个理想的力学模型来描述粘弹性内耗,尤其是非线性粘弹性内耗.The mechanical models and measurements of low frequency internal friction in solids are discussed and described in this paper. There are anelasticity and viscoelasticity internal friction in solid. Free-decay and forced vibration methods can be used to measure the low frequency internal friction. Two-parameter and three- parameter mechanical models can be used to describe the internal friction of materials but they have their limitations.No appropriate mechanical model can be used to describe viscoelasticity internal friction, especially non-linear viscoelasticity.

关 键 词：低频内耗力学模型 内耗测量 研究进展 

分 类 号：TH73[机械工程—仪器科学与技术]