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首页> 外文会议>3rd sound quality symposium (SQS 2008) >Sound quality analysis of the combined aerodynamic andpower transmission noise with application to rotorcraftinterior response
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Sound quality analysis of the combined aerodynamic andpower transmission noise with application to rotorcraftinterior response

机译：空气动力传递动力噪声的声品质分析及其在旋翼飞机内部响应中的应用

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摘要

Acoustic signatures of aerodynamic and power transmission noise sources are very different.rnSpecial combination of sound quality metrics is needed to explain their combined effect. Tornstudy this problem more in-depth, the rotorcraft passenger cabin noise example is analyzed as itrnis dominated by both types of responses. The aim of this study is to identify which class ofrnmetrics is the best quality predictor for sound fields with combined aerodynamic and powerrntransmission responses. To achieve this goal, a series of jury evaluation tests based on the pairedrncomparison analysis are performed on a wide variety of rotorcraft interior sounds as stimuli. Atrnthe same time, various new and existing sound quality metrics were computed from thernmeasured sound data. A multivariate regression analysis was applied to determine a suitablernpredictor model that correlates well with the normalized mean jury preference scores. Thernresults, not only provided a better understanding of the controlling attributes in the combinedrnaerodynamic and power transmission sound field, it can be used as a guide to identify the class ofrnmetrics that provides a reliable measure of subjective response.
机译：空气动力和动力传输噪声源的声学特征非常不同。rn需要对声音质量指标进行特殊组合才能解释它们的组合效果。对这个问题进行了更深入的研究，对旋翼飞机客舱噪声示例进行了分析，因为这两种类型的响应都以itrnis为主。这项研究的目的是确定结合空气动力学和动力传递响应的声场的最佳质量预测指标。为了实现这一目标，对成对的旋翼机内部声音作为刺激，进行了基于配对比较分析的一系列评审团评估测试。同时，从测得的声音数据中计算出各种新的和现有的声音质量指标。应用多元回归分析来确定合适的预测模型，该模型与归一化的平均陪审团偏爱评分密切相关。结果不仅可以更好地理解气动和动力组合声场中的控制属性，而且可以用作识别可提供主观反应的可靠度量的度量标准的指南。

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  • 来源
  • 会议地点 Dearborn MI(US);Dearborn MI(US)
  • 作者

    Pravin B. Sondkar; rnTeik C. Lim; Robert D. Celmer;

  • 作者单位

    Vibro-Acoustics and Sound Quality Research LaboratoryrnDepartment of Mechanical Engineering, University of CincinnatirnCincinnati, OH 45221rnUnited States of America Email address: sondkapb@email.uc.edu;

    rnVibro-Acoustics and Sound Quality Research LaboratoryrnDepartment of Mechanical Engineering, University of CincinnatirnCincinnati, OH 45221rnUnited States of America Email address: teik.lim@uc.edu;

    rnAcoustic Laboratory, College of Engineering, Technology ArchitecturernUniversity of Hartford, West Hartford, CT 06117rnUnited States of America Email address: celmer@hartford.edu;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 振动、噪声及其控制;
  • 关键词

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