敷设阻尼材料对双层圆柱壳声辐射特性的影响
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摘要
敷设阻尼材料是降低潜艇振动与辐射噪声的有效手段。采用统计能量法(SEA),研究了内、外壳分别敷设阻尼材料时双层圆柱壳的振动与声辐射特性,发现在耐压壳上敷设阻尼材料可以更有效地降低圆柱壳的辐射噪声。分析了阻尼材料的杨氏模量、损耗因子和阻尼层厚度对其降噪效果的影响规律,以及阻尼材料对3种不同结构形式圆柱壳的降噪效果。对于合理使用阻尼材料降低水下结构的振动与辐射噪声有一定参考作用。
Laying damping material is an effective means to reduce the submarine vibration and radiation noise. The vibration and radiated noise of double cylindrical shells are studied when the damping materials are respectively laid in the inner or outer shells based on the statistical energy analysis(SEA). It was found that laying damping material on the pressure shell could more effectively reduce the radiation noise of the double cylindrical shells. Then studied the influence of the Young's modulus, the loss factor and the thickness of damping layer on the noise reduction effect. Finally, the effect of damping material on the noise reduction effect of three kinds of cylindrical shells was studied. The study has a certain reference for the rational useing of damping materials to reduce submarine vibration and radiated noise.
Laying damping material is an effective means to reduce the submarine vibration and radiation noise. The vibration and radiated noise of double cylindrical shells are studied when the damping materials are respectively laid in the inner or outer shells based on the statistical energy analysis(SEA). It was found that laying damping material on the pressure shell could more effectively reduce the radiation noise of the double cylindrical shells. Then studied the influence of the Young's modulus, the loss factor and the thickness of damping layer on the noise reduction effect. Finally, the effect of damping material on the noise reduction effect of three kinds of cylindrical shells was studied. The study has a certain reference for the rational useing of damping materials to reduce submarine vibration and radiated noise.
引文
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[7]陈美霞,骆东平,周锋,等.阻尼材料敷设方式对双层壳体声辐射性能的影响[J].声学学报,2005(4):296-302.
[8]刘向东,庞福振,姚熊亮.敷设阻尼材料的圆柱壳声辐射性能实验分析[J].船海工程,2009(3):26-31.
[9]窦松然.壳体结构振动及声辐射的粘弹性阻尼控制技术研究[D].哈尔滨:哈尔滨工业大学,2015.
[10]王献忠,孙龙泉,邱忠辉,等.部分敷设阻尼材料的水下结构声辐射分析[J].振动与冲击,2012,31(18):122-127.
[11]田宝晶.敷设阻尼层的加肋圆柱壳辐射性能及噪声特性分析[D].哈尔滨:哈尔滨工程大学,2006.
[12]UNGAR E E.Loss factors of viscoelastically damped beam structures[J].Journal of the Acoustical Society of America,1962,34(8):1082-1089.
[13]姚德源.统计能量分析原理及其应用[M].北京:北京理工大学出版社,1995.
[14]LYON R H,DEJONG R G,HECKL M.Theory and application of statistical energy analysis,second edition[J].Journal of the Acoustical Society of America,1995,98(6):3021.
[2]陈炜,骆东平,张书吉,等.敷设阻尼材料的环肋柱壳声辐射性能分析[J].声学学报,2000(1):27-32.
[3]LAULAGNET B,GUYADER J L.Sound radiation from finite cylindrical coated shells,by means of asymptotic expansion of three‐dimensional equations for coating[J].Journal of the Acoustical Society of America,1994,96(96):277-286.
[4]LAULAGNET B,GUYADER J L.Sound radiation from finite cylindrical shells,partially covered with longitudinal strips of compliant layer[J].Journal of Sound&Vibration,1995,186(186):723-742.
[5]LAULAGNET B,GUYADER J L.Sound radiation from a finite cylindrical shell covered with a compliant layer[J].Journal of Vibration&Acoustics,1991,113(2):267.
[6]陈美霞,骆东平,彭旭,等.敷设阻尼材料的双层圆柱壳声辐射性能分析[J].声学学报,2003(6):486-493.
[7]陈美霞,骆东平,周锋,等.阻尼材料敷设方式对双层壳体声辐射性能的影响[J].声学学报,2005(4):296-302.
[8]刘向东,庞福振,姚熊亮.敷设阻尼材料的圆柱壳声辐射性能实验分析[J].船海工程,2009(3):26-31.
[9]窦松然.壳体结构振动及声辐射的粘弹性阻尼控制技术研究[D].哈尔滨:哈尔滨工业大学,2015.
[10]王献忠,孙龙泉,邱忠辉,等.部分敷设阻尼材料的水下结构声辐射分析[J].振动与冲击,2012,31(18):122-127.
[11]田宝晶.敷设阻尼层的加肋圆柱壳辐射性能及噪声特性分析[D].哈尔滨:哈尔滨工程大学,2006.
[12]UNGAR E E.Loss factors of viscoelastically damped beam structures[J].Journal of the Acoustical Society of America,1962,34(8):1082-1089.
[13]姚德源.统计能量分析原理及其应用[M].北京:北京理工大学出版社,1995.
[14]LYON R H,DEJONG R G,HECKL M.Theory and application of statistical energy analysis,second edition[J].Journal of the Acoustical Society of America,1995,98(6):3021.