复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (5): 63-68.

• 应用研究 • 上一篇    下一篇

不同内径碳纤维复合材料轴管的振动性能研究

孙泽玉1,2,3, 余许多4, 陶雷1,2, 高洪平4   

  1. 1.东华大学材料科学与工程学院,上海201620;
    2.民用航空复合材料东华大学协同创新中心,上海201620;
    3.上海市轻质结构复合材料重点实验室,上海201620;
    4.上海华渔新材料科技有限公司,上海201620
  • 收稿日期:2019-10-11 出版日期:2020-05-28 发布日期:2020-05-28
  • 通讯作者: 余木火(1961-),男,博士生导师,教授,主要从事高性能纤维制备及先进复合材料成型技术方面的研究,yumuhuo@dhu.edu.cn。肖杰(1988-),女,实验师,主要从事先进复合材料振动与冲击性能方面的研究,jiex0616@dhu.edu.cn。
  • 作者简介:孙泽玉(1986-),男,博士生,主要从事先进复合材料成型及其在汽车轻量化中的应用方面的研究。
  • 基金资助:
    中央高校基本科研业务费专项资金(2232018A3-02,17D128105);上海市科委科研课题资金(16DZ1121404,17511102801);上海汽车工业科技发展基金会项目(1715)

STUDY ON VIBRATION PROPERTIES OF CARBON FIBER REINFORCEDCOMPOSITE TUBES WITH DIFFERENT INNER DIAMETERS

SUN Ze-yu1,2,3, YU Xu-duo4, TAO Lei1,2, GAO Hong-ping4   

  1. 1.College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
    2.Center for Civil Aviation Composites, Donghua University, Shanghai 201620, China;
    3.Key Laboratory of Shanghai City for Lightweight Composites, Donghua University, Shanghai 201620, China;
    4.Shanghai Fishman New Materials Technology Company, Shanghai 201620, China
  • Received:2019-10-11 Online:2020-05-28 Published:2020-05-28

摘要: 利用脉冲激振实验技术和有限元分析方法,分别采用实验和有限元计算两种方法研究了轴管内径对碳纤维增强环氧树脂基复合材料(CFRP)轴管自由状态下的振动性能的影响。结果表明:随着CFRP轴管内径的增加,其固有频率值增大,当轴管内径从50 mm增加到70 mm时,固有频率增加了39.13%,仿真和实测固有频率结果基本一致,仿真模型可靠。不同内径CFRP轴管在自由状态条件下第一阶振动都发生了弯曲振动,振动时1/4和3/4处不变形而中间和两端变形较大。随着CFRP轴管内径增加,振动衰减系数逐渐减小,衰减系数下降速率逐渐变缓。轴管内径引起阻尼性能的变化对轴管自由状态振幅衰减有较大影响,但是对固有频率影响较小。

关键词: 碳纤维复合材料, 传动轴, 固有频率, 阻尼, 振动性能

Abstract: In this study, the vibration characteristics of carbon fiber reinforced composite tubes with various inner diameters were studied using finite element analysis and experimental modal test. The results indicated that natural frequency of composite tubes increased with the increases in the inner diameter. The high accordance of the simulated and measured results indicated the reliability of the simulation. Under the free state, the first vibration of composite tubes with different inner diameters occurred bending vibration. During the vibration, position 1/4 and 3/4 of the tube did not deform but the middle and both ends deformed greatly. With the increase of the inner diameter of the composite tubes, the vibration attenuation coefficient decreased gradually. The change of damping property caused by the inner diameter of the shaft tube has a great influence on the vibration attenuation of the composite tube under free state, but the damping change has little influence on the natural frequency of the shaft tubein the free state.

Key words: CFRP, drive shaft, natural frequency, damping, vibration performance

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