嵌入式共固化穿孔阻尼复合材料的制备与性能  

MANUFACTURE PROCESS AND PROPERTIES OF THE EMBEDDED CO-CURED PERFORATED DAMPING COMPOSITE

作　　者：闫云鹏 梁森 古恒 郑长升 YAN Yun-peng;LIANG Sen;GU Heng;ZHENG Chang-sheng(School of Mechanical&Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China;Cooling&Microstructure Design H,Qingdao Haier Special Electrical Co.,Ltd.,Qingdao 266101,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,青岛266520 [2]青岛海尔特种制冷电器有限公司冰冷设计小微H,青岛266101

出　　处：《复合材料科学与工程》2020年第6期46-50,共5页Composites Science and Engineering

基　　金：国家自然科学基金资助项目(51375248);山东省自然科学基金资助项目(ZR2019MEE088)。

摘　　要：为了提高复合材料的阻尼性能,促进阻尼复合材料的发展,本文探索一种新的嵌入式共固化穿孔阻尼复合材料。在T300碳纤维布上刷涂阻尼胶浆,晾干后制出规则分布的小孔,按真空导入成型工艺制备预成型体,将其放入温度试验箱进行固化,得到嵌入式共固化穿孔阻尼复合材料,并将复合材料按尺寸切割成试件。对试件进行模态试验、自由衰减试验和层间剪切试验。试件板的一阶模态阻尼达到3.65%,固有频率为12.88 Hz;试件梁的一阶模态阻尼达到2.02%,固有频率为34.25 Hz;试件梁的层间剪切力最大值为6488.452 N,剪切强度为5.19 MPa。结果表明这种嵌入式共固化穿孔阻尼复合材料具有较好的阻尼性能与层间力学性能。In order to improve the damping performance of composite materials and promote the development of damping composites,this paper explored a new embedded co-cured perforated damping composite.The damping mucilage was brushed on T300 carbon fiber cloth,and the small holes with regular distribution were perforated after the damping mucilage was dried.The preform was prepared by vacuum induction moulding process and solidified the preform in the temperature test chamber to obtain an embedded co-cured perforated damping composite,and cut the composite into pieces according to its size.The modal test,the free decay test and the interlaminar shear test were carried out on the specimens.The first-order modal damping of the plate specimen is 3.65%,the natural frequency is 12.88 Hz.And the first-order modal damping of the beam specimen is 2.02%,the natural frequency is 34.25 Hz.The maximum interlaminar shear force of the beam specimen is 6488.452 N,the shear strength is 10.38 MPa.It was shown that the composite has good damping performance and interlayer mechanical properties.

关 键 词：阻尼性能 粘弹性阻尼材料 共固化工艺 嵌入式共固化穿孔阻尼复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]