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首页> 外文期刊>Aerospace science and technology >A Statistical Energy Analysis (SEA) model of a fuselage section for the prediction of the internal Sound Pressure Level (SPL) at cruise flight conditions
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A Statistical Energy Analysis (SEA) model of a fuselage section for the prediction of the internal Sound Pressure Level (SPL) at cruise flight conditions

机译：用于预测巡航飞行条件下内置压力水平（SPL）的机身部分的统计能量分析（SEA）模型

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摘要

Comfort plays an increasingly important role in the interior design of airplanes. In general, comfort is defined as 'freedom from pain, well-being'; in scientific literature, indeed, it is defined as a pleasant state of physiological, psychological and physical harmony between a human being and the environment or a sense of subjective well-being. Cabin noise in passenger aircraft is one of the comfort parameter, which creates straightaway discomfort when exceeding personal thresholds. In general the cabin noise varies by the seat position and changes with flight condition. It is driven by several source types, which are transmitted through different transfer paths into the cabin. In the forward area the noise is mainly dominated by the turbulent boundary layer described by pressure vortexes traveling along the fuselage surface.In this paper evaluation of the Sound Pressure level, for the medium-high frequency range, of an aircraft fuselage section at different stations and locations inside the cabin has been performed numerically by using Statistical Energy Analysis (SEA) method. Different configurations have been considered for the analysis: from the "naked" cabin (only primary structure) up to "fully furnished" (primary structure with interiors and noise control treatments) one. These results are essential to understand which are the main parameters affecting the noise insulation. Furthermore the Power Inputs evaluation has been determined to see the contribution of each considered aeronautic component on the acoustic insulation. Finally, the effect of a viscoelastic damping layer embedded in the glass window has been evaluated. (C) 2019 The Authors. Published by Elsevier Masson SAS.
机译：舒适在飞机室内设计中起着越来越重要的作用。一般来说，舒适被定义为“免于痛苦，幸福”的自由;实际上，在科学文学中，它被定义为人类和环境之间的生理，心理和身体和谐的愉快状态或主观幸福感。客机中的驾驶室噪音是舒适参数之一，在超过个人门槛时会产生直接的不适。通常，驾驶室噪音因座椅位置而变化，而且随着飞行条件的变化而变化。它由几种源类型驱动，通过将不同的传输路径传输到机舱中。在前部区域中，噪声主要由沿着机身表面行进的压力涡流描述的湍流边界层。在不同站的飞机机身段的中高频范围内的声压级的纸张评估机舱内的位置通过使用统计能量分析（SEA）方法来执行数值。已经考虑了不同的配置进行分析：从“裸体”机舱（仅限初级结构）直到“完全配备”（具有内部结构和噪声控制处理的主要结构）。这些结果对于了解影响噪声绝缘的主要参数至关重要。此外，已经确定了功率输入评估，以了解每个考虑的航空部件对声学绝缘的贡献。最后，已经评估了嵌入玻璃窗中的粘弹性阻尼层的效果。 （c）2019年作者。由Elsevier Masson SA出版。

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  • 来源
    《Aerospace science and technology》 |2019年第5期|340-349|共10页
  • 作者

    Petrone Giuseppe; Melillo Giacomo; Laudiero Aurelio; De Rosa Sergio;

  • 作者单位

    Univ Naples Federico II Pasta Lab Lab Promoting Experience Aeronaut Struc Dept Ind Engn Aerosp Sect Via Claudio 21 I-80125 Naples Italy;

    Univ Naples Federico II Pasta Lab Lab Promoting Experience Aeronaut Struc Dept Ind Engn Aerosp Sect Via Claudio 21 I-80125 Naples Italy;

    Univ Naples Federico II Pasta Lab Lab Promoting Experience Aeronaut Struc Dept Ind Engn Aerosp Sect Via Claudio 21 I-80125 Naples Italy;

    Univ Naples Federico II Pasta Lab Lab Promoting Experience Aeronaut Struc Dept Ind Engn Aerosp Sect Via Claudio 21 I-80125 Naples Italy;

  • 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

    Interior noise; Sound pressure level; Statistical energy analysis; Aircraft;

    机译：内部噪声;声压级;统计能量分析;飞机;

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