复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (1): 42-45.DOI: 10.19936/j.cnki.2096-8000.20220128.006

• 应用研究 • 上一篇    下一篇

共固化黏弹性复合材料梁结构的阻尼性能

朱晓丽1, 王绍清1,2*   

  1. 1.潍坊科技学院 机电技术学院,潍坊262700;
    2.青岛理工大学 机械与汽车工程学院,青岛266000
  • 收稿日期:2021-05-17 出版日期:2022-01-28 发布日期:2022-02-10
  • 通讯作者: 王绍清(1985-),男,博士研究生,主要从事复合材料力学性能分析与优化方面的研究,740174584@qq.com。
  • 作者简介:朱晓丽(1977-),女,硕士,讲师,主要从事复合材料动力学方面的研究。
  • 基金资助:
    国家自然科学基金项目(52075280);设施园艺专项(2021XKJS24);寿光市科技计划(2019JH14)

Damping performance of co-cured viscoelastic composite beam structure

ZHU Xiao-li1, WANG Shao-qing1,2*   

  1. 1. Institute of Mechanical and Electrical Technology, Weifang University of Science and Technology, Weifang 262700, China;
    2. School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266000, China
  • Received:2021-05-17 Online:2022-01-28 Published:2022-02-10

摘要: 为获取共固化黏弹性复合材料梁结构的阻尼性能,建立该结构的动力学解析模型,基于复模量理论和Rayleigh-Ritz法,推导其振动微分方程,并对该方程进行求解,将求解结果同已发表文献结果进行对比,验证理论模型的有效性,利用已验证模型探讨材料和尺寸参数对该结构动力学性能的影响。结果表明:将阻尼膜放置于黏弹性复合材料梁结构中面位置,可获得较理想的阻尼性能;缩短梁的长度、增大阻尼层厚度均可提高结构阻尼性能。

关键词: 复合材料, 损耗因子, 阻尼性能, Rayleigh-Ritz

Abstract: In order to obtain the damping performance of co-cured viscoelastic composite beam structure, a dynamic analysis model of the structure was established. Based on the complex modulus theory and the Rayleigh-Ritz method, the vibration differential equation was derived, and the equation was solved. The calculation results were compared with data from the published literature. The validated model is used to analyze the influence of the geometric and material parameters of the structure on the dynamic characteristics of viscoelastic composite beam structure. The results show that placing the damping membrane on the midplane of the viscoelastic composite beam structure can obtain ideal damping performance. It is proved that shortening the length of the beam and increasing the thickness of the damping layer can improve the damping performance of the structure.

Key words: composite, loss factor, damping performance, Rayleigh-Ritz

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