混响室扩散体声学设计及数值仿真
吕义高阳樊康
Acoustic Design of the Diffuser in Reverberation Chamber and Numerical Simulation
LYU YiGAO YangFAN Kang
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作者信息:中车长春轨道客车股份有限公司科技管理部, 130062, 长春
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Affiliation:CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.02.023
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中图分类号/CLCN:U270.7;TB52+7
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栏目/Col:研究报告
摘要:
针对高速铁路动车组车内噪声测量要求,分析了吸声测量和隔声测量中对混响室的功能要求。选择扩散板作为混响室基本扩散体,对扩散体的大小及数量要求进行分析与设计,给出了混响室扩散体设计方案及其基本指标。
Abstracts:
According to the requirements of EMU vehicle noise measurement, the performance of reverberation chamber corresponding to sound absorption and sound reduction measurements is analyzed. The diffusing plate is selected as the basic diffuser in reverberation chamber, in order to analyze and design the proper size and number of the diffusing plate, obtain the acoustic design of the diffuser in EMU reverberation chamber and the basic index.
引文 / Ref:
吕义,高阳,樊康.混响室扩散体声学设计及数值仿真[J].城市轨道交通研究,2019,22(2):98.
LYU Yi,GAO Yang,FAN Kang.Acoustic Design of the Diffuser in Reverberation Chamber and Numerical Simulation[J].Urban mass transit,2019,22(2):98.
LYU Yi,GAO Yang,FAN Kang.Acoustic Design of the Diffuser in Reverberation Chamber and Numerical Simulation[J].Urban mass transit,2019,22(2):98.
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