基于FE-BE耦合方法的轻轨轮轨噪声辐射模型

IF 1.3 4区 医学 Q3 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
C. Layman, J. Nelson
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引用次数: 0

摘要

本文建立了弹性轻轨车轮在几种轨道上滚动噪声的有限元-边界元耦合模型。振动声模型采用三维弹性实体表示车轮和轨道受线性赫兹界面载荷的激励。获得辐射声功率、辐射效率和路旁噪声水平的估计,然后使用平行阻抗框架和粗糙度剖面进行缩放。将结果与最近测量的华盛顿州西雅图Sound Transit的车辆经过噪音和轨道衰减率进行比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Light rail wheel/rail noise radiation model using a coupled FE-BE method
This paper presents the development of a coupled finite element - boundary element model of rolling noise from a resilient light rail wheel on several types of tracks. The vibro-acoustic model utilizes a 3D elastic solid representation for both wheel and rail which are excited by linearized Hertzian interface loads. Estimates of the radiated sound power, radiation efficiencies and wayside noise levels are obtained and then scaled using a parallel impedance framework and a roughness profile. Results are compared to recently measured vehicle passby noise and track decay rates at Sound Transit in Seattle Washington.
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来源期刊
Noise & Health
Noise & Health AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY-PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
CiteScore
2.10
自引率
14.30%
发文量
27
审稿时长
6-12 weeks
期刊介绍: Noise and Health is the only International Journal devoted to research on all aspects of noise and its effects on human health. An inter-disciplinary journal for all professions concerned with auditory and non-auditory effects of occupational, environmental, and leisure noise. It aims to provide a forum for presentation of novel research material on a broad range of topics associated with noise pollution, its control and its detrimental effects on hearing and health. It will cover issues from basic experimental science through clinical evaluation and management, technical aspects of noise reduction systems and solutions to environmental issues relating to social and public health policy.
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