| 双层圆柱壳噪声预报及统计能量参数灵敏度分析 |
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| 引用本文： | 刘小勇,盛美萍,行晓亮,雷烨. 双层圆柱壳噪声预报及统计能量参数灵敏度分析[J]. 振动与冲击, 2007, 26(7): 50-53 |
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| 作者姓名： | 刘小勇 盛美萍 行晓亮 雷烨 |
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| 作者单位： | 西北工业大学,航海学院,西安,710072 |
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| 基金项目： | 教育部新世纪优秀人才培养计划 |
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| 摘 要： | 采用统计能量分析方法，建立水下有限长双层圆柱壳体结构机械噪声预报模型。在已知内层壳体振动速度的情况下，计算出流场中距外层壳体一定距离处的声压级。利用统计能量分析软件AutoSEA2进行建模仿真，通过对统计能量分析重要参数的敏感性分析，得到了一些有价值的结论，对水下结构声学设计具有重要意义。
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| 关 键 词： | 双层圆柱壳 噪声预报 统计能量分析 灵敏度 |
| 修稿时间： | 2006-09-212006-10-11 |
PREDICTION OF NOISE RADIATION FROM A RING-STIFFENED CYLINDRICAL DOUBLE-SHELL AND SENSITIVITY ANALYSIS OF SEA PARAMETERS |
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| LIU Xiao-yong,SHENG Mei-ping,XING Xiao-liang,LEI Ye. PREDICTION OF NOISE RADIATION FROM A RING-STIFFENED CYLINDRICAL DOUBLE-SHELL AND SENSITIVITY ANALYSIS OF SEA PARAMETERS[J]. Journal of Vibration and Shock, 2007, 26(7): 50-53 |
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| Authors: | LIU Xiao-yong SHENG Mei-ping XING Xiao-liang LEI Ye |
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| Abstract: | The model of a cylindrical double-shell under water for sound prediction is built using SEA.The sound pressure level at certain distance from the outer shell in flow field is obtained when the vibration velocity of the inner shell is known.A model is built using the software AutoSEA2.Through the sensitivity analysis of the SEA parameters,some useful conclusions are drawn,and they are important to acoustic design of underwater structures. |
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| Keywords: | cylindrical double-shell noise prediction statistical energy analysis(SEA) sensitivity |
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