E-玻璃纤维/乙烯基酯树脂复合材料拉伸与模态特性分析  

TENSILE AND MODAL CHARACTERISTICS ANALYSIS OF E-GLASS FIBER/VINYL ESTER RESIN

作　　者：韩巧丽[1] 李汪灏 邢为特 张正 郭珊珊 Han Qiaoli;Li Wanghao;Xing Weite;Zhang Zheng;Guo Shanshan(College of Energy and Transportation Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China;College of Mechanical and Electrical Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China)

机构地区：[1]内蒙古农业大学能源与交通工程学院,呼和浩特010018 [2]内蒙古农业大学机电工程学院,呼和浩特010018

出　　处：《太阳能学报》2020年第1期210-216,共7页Acta Energiae Solaris Sinica

基　　金：内蒙古自治区自然科学基金(2017MS0515)。

摘　　要：对小型风力机叶片铺层结构所用的E-玻璃纤维/乙烯基酯树脂复合材料进行拉伸试验与试验模态分析,对比分析不同种类纤维的拉伸强度、破坏形态与弹性模量等抗拉性能与模态特性,得出以下结论:根据拉伸强度、破坏形态与弹性模量得出单轴向0°层合板的抗拉性能更好;随着层数增加,单轴向0°纤维布对挥舞固有频率的影响最大,双轴向±45°纤维布对扭转固有频率的影响最大;层数与铺设角度对一阶挥舞、扭转振型影响较小;小型风力机风轮的转速较高,可铺设更多的单轴向0°纤维布,以改变其模态特性;为初步探究单层、多层板模态参数间的关联性,分析得出铺层顺序的变化对层合板固有频率的影响最大值为1.45 Hz,并为E-玻璃纤维/乙烯基酯树脂复合材料钢叶片的生产与研究提供基础理论依据。E-glass fiber/vinyl ester resin composite materials used for the layer structure of small wind turbine blades are carried tensile tests and modal analysis.The following conclusions are obtained through the comparative analysis on the tensile properties and modal properties of different types of fibers,such as the tensile strength,failure modes,modulus of elasticity and so on.The uniaxial 0°laminates have better tensile properties.With the number of layers increases,the uniaxial 0°fiber cloth has the greatest influence on the flapping natural frequency,and the biaxial±45°fiber cloth has the greatest influence on the torsional natural frequency.The numbers of layers and the laying angles have less influence on the first flapping and torsional vibration modes.Since the small scale wind turbine has higher rotor speed,more uniaxial 0°fiber cloth can be laid so as to make the blade structure and modal properties better.In order to study the correlation between modal parameters of single and multi-layer laminates,it can be analyzed that under the different order of layering the maximum amount of the natural frequency is 1.45 Hz.This study can provide basic theoretical basis for the production and research on E-glass fiber/vinyl ester resin composite blades.

关 键 词：复合材料 模态分析 抗拉性能 小型风力机 叶片铺层 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]