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Approximate method for obtaining source quantities for calculation of structure-borne sound transmission into lightweight buildings

机译：获取源数量的近似方法，用于计算结构声传递到轻型建筑中

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摘要

An approximate approach is described, for obtaining the source quantities required for the calculation of structure-borne sound power from machines into supporting lightweight building elements. The approach is in two stages, which are based on existing international Standards for measurement. The first stage involves direct measurement of the source free velocity at each contact, to give the sum of the square velocities. The second stage is based on the reception plate method and yields the single equivalent blocked force, which approximates the sum of the square blocked forces. The applicability of the source data obtained has been investigated in a case study of a fan unit on a timber joist floor. The approach contains several significant simplifying assumptions and the uncertainties associated with them are considered. For the case considered, the power transmitted into the floor is estimated by the approximate method to within 5 dB of the true value, on average. (C) 2016 Elsevier Ltd. All rights reserved.
机译：描述了一种近似方法，用于获得从机器到支撑轻型建筑元件的计算结构声功率所需的源数量。该方法分两个阶段，以现有的国际测量标准为基础。第一阶段包括直接测量每个触点处的源自由速度，以得出平方速度的总和。第二阶段基于接收板方法，并产生单个等效的闭锁力，它近似于平方闭锁力的总和。在木托梁地板上的风扇单元的案例研究中，对获得的源数据的适用性进行了研究。该方法包含几个重要的简化假设，并考虑了与之相关的不确定性。对于所考虑的情况，通过近似方法估计平均传输到地板的功率在真实值的5 dB以内。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Applied Acoustics》 |2016年第9期|81-90|共10页
  • 作者

    Mayr A. R.; Gibbs B. M.;

  • 作者单位

    Univ Liverpool, Sch Architecture, Acoust Res Unit, Liverpool L69 3BX, Merseyside, England;

    Univ Liverpool, Sch Architecture, Acoust Res Unit, Liverpool L69 3BX, Merseyside, England;

  • 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

    Building acoustics; Structure-borne sound; Reception plate method;

    机译：建筑声学;结构声;接收板法;

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