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Assessment of UAM and drone noise impact on the environment based on virtual flights

机译：基于虚拟航班的环境评估UAM和无人机噪声影响

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摘要

Drones and urban air mobility vehicles, which are mostly intended for urban operations, have attracted intensive research interest. Their environmental noise impact should not be ignored and should be a certification consideration. Numerical simulations can provide means to efficiently assess the noise impact on the complex urban environments, thanks to the advances in both software and hardware. In this study, virtual flights of the noise sources to mimic the drones and urban air mobilities are conducted to investigate the environmental impact by using the Gaussian beam tracing method implemented in an in-house solver Environmental Acoustic Ray Tracing Code, in which the dominant acoustic processes in outdoor applications are modelled. The solver also allows for modelling of sources with generic directivity patterns, which is beneficial for investigating the drone and urban air mobility noise produced by multiple rotors. Two examples of studying noise impact on building and realistic urban environment are conducted. The effects of the surface acoustic impedance, source type and flight path are investigated. By using the efficient simulation solver, the noise impact can be quickly assessed through virtual flights, providing a promising approach to assist the low-noise flight planning and noise certification. (C) 2021 Elsevier Masson SAS. All rights reserved.
机译：无人驾驶和城市空中移动车辆主要用于城市业务，吸引了密集的研究兴趣。不应忽略它们的环境噪音影响，应该是认证考虑因素。由于软件和硬件的进步，数值模拟可以提供有效地评估复杂城市环境的噪声影响。在这项研究中，通过使用在内部求解器环境声射线追踪代码中的高斯梁追踪方法中，进行了模仿无人机和城市空气迁移率的虚拟飞行，以研究环境影响。建模室外应用中的进程。求解器还允许使用通用方向性模式建模来源，这有利于研究由多个转子产生的无人机和城市空袭噪声。对建筑和现实城市环境进行了研究噪声影响的两个例子。研究了表面声阻抗，源型和飞行路径的影响。通过使用高效的仿真求解器，可以通过虚拟航班快速评估噪声影响，提供有希望的方法来帮助低噪声飞行规划和噪声认证。 （c）2021 Elsevier Masson SAS。版权所有。

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  • 来源
    《Aerospace science and technology》 |2021年第11期|106996.1-106996.6|共6页
  • 作者

    Bian Haoyu; Tan Qichen; Zhong Siyang; Zhang Xin;

  • 作者单位

    Hong Kong Univ Sci & Technol Aerodynam Acoust & Noise Control Technol Ctr Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Aerodynam Acoust & Noise Control Technol Ctr Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Aerodynam Acoust & Noise Control Technol Ctr Kowloon Hong Kong Peoples R China|Hong Kong Univ Sci & Technol HKUST Inst Adv Study Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Aerodynam Acoust & Noise Control Technol Ctr Kowloon Hong Kong Peoples R China|HKUST Shenzhen Res Inst Shenzhen 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
  • 中图分类
  • 关键词

    Environmental noise; Gaussian beam tracing method; UAM; Drones; Virtual flights;

    机译：环境噪声;高斯梁跟踪方法;UAM;无人机;虚拟航班;

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