首页> 外文期刊>Journal of Vibration and Acoustics >Vibration Reduction Index of a T-Junction With a Flexible Interlayer
【24h】

Vibration Reduction Index of a T-Junction With a Flexible Interlayer

机译:具有挠性中间层的T型结的减振指数

获取原文
获取原文并翻译 | 示例
           

摘要

This paper describes the procedure followed to evaluate the vibration reduction index for T-junctions with inserted flexible elements and proposes new equations to complement the standard EN 12354-1:2000. The experiment described in this work is based on a 1:3 scale model of a T-junction with a flexible interlayer. It was used to obtain a significant reduction in the cost of the configurations under study. We chose to carry out vibration measurements by near-field acoustic holography (NAH) in order to avoid the risk of ac-celerometer interference. Flanking transmission was determined for different elastic-layers with the objective of quantifying the effect of the flexible interlayer and to compare the results obtained with predictive formulas. The results enabled us to propose new equations to complement EN 12354-1:2000 for the reliable prediction of the apparent sound reduction index. The uncertainty associated with the different average velocity levels is determined according to the Guide for the Expression of Uncertainty of Measurement (GUM).
机译:本文介绍了评估带有插入的柔性元件的T型接头的减振指数的过程,并提出了新的方程式来补充标准EN 12354-1:2000。这项工作中描述的实验基于具有柔性夹层的T型结的1:3比例模型。它用于显着降低所研究配置的成本。我们选择通过近场声全息术(NAH)进行振动测量,从而避免交流加速度计受到干扰的风险。确定了不同弹性层的侧向透射,目的是量化柔性中间层的作用,并与预测公式进行比较。结果使我们能够提出新的方程式来补充EN 12354-1:2000,以便可靠地预测视在降噪指数。根据测量不确定度表示指南(GUM)确定与不同平均速度水平相关的不确定性。

著录项

  • 来源
    《Journal of Vibration and Acoustics》 |2012年第2期|p.021009.1-021009.10|共10页
  • 作者单位

    IGIC, Department of Applied Physics, Higher Polytechnic School of Gandia, Polytechnic University of Valencia,c/ Paraninfo n° 1, 46730 Gandia,Spain;

    IGIC, Department of Applied Physics, Higher Polytechnic School of Gandia, Polytechnic University of Valencia,c/ Paraninfo n° 1, 46730 Gandia,Spain;

    Department of Physics,Engineering of Systems and Signal Theory,University of Alicante,Alicante 99,03080,Spain;

    IGIC, Department of Applied Physics,Higher Polytechnic School of Gandia,Polytechnic University of Valencia,c/ Paraninfo n° 1, 46730 Gandia,Spain;

    Department of Civil Engineering,University of Alicante,Alicante 99, 03080,Spain;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    flanking transmission; vibration reduction index; scale model; NAH;

    机译:侧面传动;减振指数比例模型;国民健康保险;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号