高速列车外流场气动噪声的特性研究

U270.16; 针对高速列车外流场气动噪声完成了在线实验测试研究,对列车模型进行了简化并确定了合理性;进行了列车模型湍流流场模拟,完成了列车远场气动噪声的预测研究.研究表明,合理缩短列车不会改变车身表面声功率分布规律;高速列车气动噪声属于宽频带噪声;在频率范围(0~5000 Hz)内气动噪声仿真与实验结果吻合较好,说明仿真方法准确度高;列车转向架处湍流最为剧烈,其次为车头鼻锥处;车身表面的气流最为平缓,进一步说明缩短列车模型的合理性.所提出的仿真方法能够为高速列车的结构优化设计提供依据,并能验证高速列车气动噪声控制方法的有效性....

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Published in东北大学学报(自然科学版) Vol. 41; no. 1; pp. 74 - 78
Main Authors 姜世杰, 杨松, 闻邦椿, 战明
Format Journal Article
LanguageChinese
Published 东北大学机械工程与自动化学院,辽宁沈阳,110819%东北大学信息科学与工程学院,辽宁沈阳,110819 2020
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ISSN1005-3026
DOI10.12068/j.issn.1005-3026.2020.01.013

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Abstract U270.16; 针对高速列车外流场气动噪声完成了在线实验测试研究,对列车模型进行了简化并确定了合理性;进行了列车模型湍流流场模拟,完成了列车远场气动噪声的预测研究.研究表明,合理缩短列车不会改变车身表面声功率分布规律;高速列车气动噪声属于宽频带噪声;在频率范围(0~5000 Hz)内气动噪声仿真与实验结果吻合较好,说明仿真方法准确度高;列车转向架处湍流最为剧烈,其次为车头鼻锥处;车身表面的气流最为平缓,进一步说明缩短列车模型的合理性.所提出的仿真方法能够为高速列车的结构优化设计提供依据,并能验证高速列车气动噪声控制方法的有效性.
AbstractList U270.16; 针对高速列车外流场气动噪声完成了在线实验测试研究,对列车模型进行了简化并确定了合理性;进行了列车模型湍流流场模拟,完成了列车远场气动噪声的预测研究.研究表明,合理缩短列车不会改变车身表面声功率分布规律;高速列车气动噪声属于宽频带噪声;在频率范围(0~5000 Hz)内气动噪声仿真与实验结果吻合较好,说明仿真方法准确度高;列车转向架处湍流最为剧烈,其次为车头鼻锥处;车身表面的气流最为平缓,进一步说明缩短列车模型的合理性.所提出的仿真方法能够为高速列车的结构优化设计提供依据,并能验证高速列车气动噪声控制方法的有效性.
Author 闻邦椿
杨松
战明
姜世杰
AuthorAffiliation 东北大学机械工程与自动化学院,辽宁沈阳,110819%东北大学信息科学与工程学院,辽宁沈阳,110819
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Author_FL ZHAN Ming
YANG Song
JIANG Shi-jie
WEN Bang-chun
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Keywords 在线实验
气动噪声
高速列车
预测
噪声控制
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Publisher 东北大学机械工程与自动化学院,辽宁沈阳,110819%东北大学信息科学与工程学院,辽宁沈阳,110819
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Snippet U270.16; 针对高速列车外流场气动噪声完成了在线实验测试研究,对列车模型进行了简化并确定了合理性;进行了列车模型湍流流场模拟,完成了列车远场气动噪声的预测研究.研究表...
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Title 高速列车外流场气动噪声的特性研究
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