文献类型：期刊文献

中文题名：BIIR/P70共混物为夹层的三明治梁阻尼行为的DMA表征

英文题名：DMA Characterization of the Damping Behavior of Sandwich Beam Laminated with BIIR/Petroleum Resins Blends

作者：李聪[1];吴国章[1];曹德明[1];吴驰飞[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2009

卷号：25

期号：1

起止页码：122

中文期刊名：高分子材料科学与工程

外文期刊名：Polymer Materials Science & Engineering

收录：CSTPCD;;EI(收录号：20091011946378);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：阻尼;三明治梁;动态力学分析仪

外文关键词：damping; sandwich beam; dynamic mechanical analyzer

摘要：文中通过动态力学分析仪DMA来表征三明治约束阻尼梁结构损耗因子随各种因素的变化情况。该三明治梁的阻尼层由溴化丁基橡胶和石油树脂的共混物组成。测试结果表明,DMA可以有效反映三明治梁的阻尼行为随温度、频率、组成的变化情况。为了解释DMA的测试结果,建立了合理的理论模型。通过调整石油树脂的含量,可以在室温和宽频范围内获得一个高的结构损耗因子。
This study attempts to characterize the damping behavior of sandwich beam by a new method with dynamic mechanical analyzer （DMA）. Therefore, a high damping material with brominated butyl rubber （BIIR） / petroleum resin blend was developed and used as the damping layer of the sandwich beam. Test results demonstrate the variation of damping behaviors of sandwich beams with temperature, frequency, and component of the damping layer can be reflected by DMA effectively. Theoretical model established here can be used to explain the phenomena obtained by DMA. By means of adjusting the content of the petroleum resin, a high structural loss factor of the sandwich beam can be obtained around ambient temperature during a wide frequency range.