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 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| 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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| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.12068/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. |
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| 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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| Author_xml | – sequence: 1 fullname: 姜世杰 – sequence: 2 fullname: 杨松 – sequence: 3 fullname: 闻邦椿 – sequence: 4 fullname: 战明 |
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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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| 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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