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Analysis of vibration reduction characteristics of composite fiber curved laminated panels

机译:复合纤维弯曲层压板的减振特性分析

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摘要

Firstly, based on modal experiment, this paper analyses composite fiber curve laminates, which includes [ 0 vertical bar 15 ](8), [ 15 vertical bar 30 ](8) , [ 30 vertical bar 45 ](8), [ 45 vertical bar 60 ](8), [ 60 vertical bar 75 ](8) , [ 75 vertical bar 90 ](8) , and then gets damping ratio of each laminated plate. After analysis, the results showed that the curve of fiber layer for 30 vertical bar 45 composite laminated plate damping ratio is the maximum, however, the curve of fiber layer for 60 vertical bar 75 composite laminated plate damping ratio is the maximum. Secondly, the simple harmonic test of laminated plates with curved layers was carried out. Those plates includes [0/45/ 0 vertical bar 15 / - 45](s), [0/45/ 15 vertical bar 30 /-45](s), [0/45/ 30 vertical bar 45 /-45](s), [0/45/ 45 vertical bar 60 /-45](s), [0/45/ 60 vertical bar 75 /-45](s), [0/45/ 75 vertical bar 90 / - 45](s). It is easy to get the acceleration response maps of each laminated plate. The above simple harmonic test results showed that larger the damping ratio, the better the damping effect and the smaller the amplitude of acceleration. The amplitude of acceleration changes inversely with the change of damping ratio. Finally, the conclusion is that the laminated plate with the best vibration damping effect is [ 30 vertical bar 45 ](8), and the laminated plate with the worst vibration damping effect is [ 60 vertical bar 75 ](8).
机译:首先,基于模态实验,本文分析了复合纤维曲线层压板,其包括[<0垂直杆15>](8),[<15垂直杆30>](8),[30垂直条45>]( 8),[<45垂直杆60>](8),[<60垂直杆75>](8),[<75垂直杆90>](8),然后达到每个层压板的阻尼比。在分析之后,结果表明,用于<30垂直杆45>复合层压板阻尼比的纤维层曲线是最大值,但是对于<60垂直杆75>复合层压板阻尼比的纤维层曲线是最大值。其次,进行了具有弯曲层的层压板的简单谐波试验。这些板包括[0/45 / <0垂直杆15> / -45](s),[0/45 / <15垂直杆30> / -45](s),[0/45 / <30垂直杆45> / -45](S),[0/45 / <45垂直条60> / -45](S),[0/45 / <60垂直条75> / -45](s),[0 / 45 / <75垂直条90> / - 45](S)。很容易获取每个层压板的加速度响应图。上述简单的谐波试验结果表明,阻尼比越大,阻尼效果越好,加速度越小。随着阻尼比的变化,加速度的幅度变化。最后,结论是具有最佳振动阻尼效果的层压板是[30垂直杆45>](8),并且具有最差振动阻尼效果的层压板是[<60垂直条75>](8) 。

著录项

  • 来源
    《Composite Structures》 |2020年第2期|111396.1-111396.9|共9页
  • 作者单位

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing Jiangsu Peoples R China;

    Huazhong Univ Sci & Technol Sch Mech Sci & Engn Wuhan Hubei Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing Jiangsu Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing Jiangsu Peoples R China;

    Nanjing Univ Aeronaut & Astronaut Coll Mat Sci & Technol Nanjing Jiangsu Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fiber curve placement; Modal experiment; Simple harmonic vibration experiment; Damping ratio; Vibration reduction;

    机译:光纤曲线放置;模态实验;简单的谐波振动实验;阻尼比率;减振;

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