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Research on Vibration Reduction Design of Foundation with Entangled Metallic Wire Material under High Temperature

机译：高温下缠结金属线材的振动减振设计研究

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摘要

When the submarine is sailing at full speed, the power cabin has an abnormally high temperature. However, in the previous research on the vibration reduction design of the foundation, the influence of high temperature on the vibration characteristics of the foundation is not taken into account. In this paper, a new composite foundation with entangled metallic wire material (EMWM) is presented to reduce the vibration of the foundation. The energy transfer path of the foundation was obtained by the power flow method, and then the layout of EMWM was determined. The optimization of the constraining layer was carried out by modal analysis. The damping performance of the composite foundation with EMWM was validated by the thermal-vibration joint test. The results show that, at room temperature, the composite foundation has remarkable vibration reduction efficiency in the middle and high-frequency bands. The maximum insertion loss can reach 15.37 dB. The insertion loss varies with the location of the excitation point. As the temperature rises to 300 degrees C, the insertion loss in the low-frequency band was improved, and the insertion loss is not influenced by the excitation position.
机译：当潜艇以全速驾驶时，电源舱具有异常高的温度。然而，在以前关于基础的减振设计的研究中，没有考虑高温对基础振动特性的影响。本文提出了一种具有缠绕金属线材（EMWM）的新型复合基础，以减少基础的振动。基础的能量传递路径通过功率流量法获得，然后确定EMWM的布局。通过模态分析进行约束层的优化。通过热振动接头试验验证了具有EMWM的复合地基的阻尼性能。结果表明，在室温下，复合地基在中高频带中具有显着减振效率。最大插入损耗可达到15.37 dB。插入损耗随着激励点的位置而变化。随着温度升高到300℃，改善了低频带中的插入损耗，并且插入损耗不受激励位置的影响。

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  • 来源
    《Shock and vibration》 |2019年第9期|7297392.1-7297392.16|共16页
  • 作者

    Zhu Yue; Wu Yiwan; Bai Hongbai; Ding Zheyu; Shao Yichuan;

  • 作者单位

    Fuzhou Univ Engn Res Ctr Met Rubber Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Engn Res Ctr Met Rubber Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Engn Res Ctr Met Rubber Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Engn Res Ctr Met Rubber Fuzhou 350116 Fujian Peoples R China;

    Fuzhou Univ Engn Res Ctr Met Rubber Fuzhou 350116 Fujian 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
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