期刊文献+

典型船舶结构中振动波传递特性研究 被引量:26

Characteristics of vibration wave propagation in typical hull structure
下载PDF
导出
摘要 以波动理论为基础,根据不均质结构中波型转换、阻抗特性,系统地分析了典型船舶结构中振动波的传递特性,推导并给出了平面弯曲波入射时的隔声量公式。在此基础上人为构造了阻抗失配基座,分析了阻抗失配基座的隔振性能。结果表明,十型结构对弯曲波有较强的阻抑作用,弯曲波在突变截面处的能量再分配关系主要由两块板的特性阻抗所决定;■型构件的连接处机械阻力较大,其隔振效果超过十型结构;■型结构隔振性能随突变截面阻抗失配程度增大显著提高,采取多次截面突变的办法能够得到较大的隔声量;阻抗失配基座加剧了振动波在船体板架中的波型转换、散射和反射,使总的隔振效果显著提高。本文旨在为船舶结构声学设计提供参考。 Based on wave analysis method, the characteristics of vibration wave propagation in typical hull structure were analyzed in consideration of wave type conversion and impedance variation in non-homogeneous structure, and the formula of sound transmission loss during incidence of plane bending wave was deduced. On this basis, the influence of impedance-mismatched ship foundation on isolation performance was discussed. The results show that 十 type structure greatly impedes the bending wave propagation, and the redistribution of bending wave at mutated-section is mainly determined by natural impedance of the two plates. The resistance at the connection of ■ type structure increases and its isolation performance is better than that of 十 type structure. The isolation performance of ■ type structure obviously becomes better with the increase of impedance mismatch level at mutated-section, therefore more sound transmission loss can be get by bringing in a number of cross-sectional mutations. The impedance-mismatched base aggravates type conversion, scattering and reflection of vibration wave in hull plates, so the total isolation performance improved significantly.
出处 《振动与冲击》 EI CSCD 北大核心 2009年第8期20-24,196,共5页 Journal of Vibration and Shock
基金 国防重点预研项目(40*********02) 国际科技合作基金资助项目(2007DFR80340) 船舶工业国防科技预研基金(批准号:07J1.5.3)
关键词 波动分析法 平面弯曲波 阻抗失配 隔声量 wave analysis method impedance-mismatch plane bending wave sound transmission loss
  • 相关文献

参考文献10

  • 1盛元生,顾伟豪,等译.工程噪声和振动分析基础[M].北京:航空工业出版社,1993.
  • 2Лялуноы В Т,НLkLфоров А С.ВиброизоляциЯ в судовых конструкциЯх[M].Л:Судостроение, 1975.
  • 3阿.斯.尼基福罗夫,船体结构声学设计[M].北京:国防工业出版社,1998,5.
  • 4Cremer L, Heckl M, Ungar E E. Structure-borne Sound. Second edition. Berlin : Springer-Verlag, 1988 : 316 - 334.
  • 5石勇,朱锡,刘润泉.方钢隔振结构对结构噪声隔离作用的理论分析与试验[J].中国造船,2004,45(2):36-42. 被引量:28
  • 6Griee R M, Pinnigton R J. A Method For the Vibration Analysis of Built-up Structures. Part I : Introduction and Analytical Analysis of the Plate-stiffened Beam. Journal of Sound and Vibration,2000,230(4) :825 - 849.
  • 7车驰东,陈端石.成任意角度连接的两块平板转角处阻振质量对平面弯曲波传递的影响分析[J].声学学报,2007,32(3):282-288. 被引量:35
  • 8Park D H, Hong S Y. Power flow models and analysis of inplan waves in finite coupled thin plates[ J]. Journal of Sound and Vibration ,2002, 244 (4) : 651 - 668.
  • 9赵松龄.噪声的降级与隔离[M].上海:同济大学出版社,1985.
  • 10Petersson B, Plunt I. Approximate effective point Mobilities for foundations and machinery Footing. Internoise-81, Proceeding, 1981,128 - 132.

二级参考文献10

  • 1肖明康,李强,李天匀.复杂结构——声场耦合系统的响应和声辐射预测[J].船海工程,2001,0(S2):88-90. 被引量:4
  • 2朱宏平,唐家祥.高层建筑结构的波传播及其振动功率流[J].华中理工大学学报,1995,23(3):78-81. 被引量:5
  • 3李天匀,张小铭.自由曲梁纵弯耦合波及其功率流[J].华中理工大学学报,1995,23(3):89-93. 被引量:6
  • 4Nefske D, Sung S. Automobile interior noise prediction using a coupled structural acoustic finite element model [A]. 11 International Congress of Acoustic Proceeding[C]. Paris: 1993, 36-39.
  • 5金咸定.船舶动力响应和控制进展[A]..第五届船舶力学委员会全体会议专集[C].绵阳,2002..
  • 6Grice R M, Pinnington R J. A method for the vibration analysis of built-up structures, Part I: Introduction and analytical analysis of the plate-stiffened beam. Journal of Sound and Vibration, 2000; 230(4): 825-849
  • 7Bouthier O M, Bernhard R J. Simple models of the energetics of transversely vibrating plates. Journal of Sound and Vibration, 1995; 182(1): 149-164
  • 8Cremer L, Heckl M, Ungar E E, Structure-borne Sound. Second edition. Berlin: Springer-Verlag, 1988:316--334
  • 9Park D H, Hong S Y, Power flow models and analysis of inplan waves in finite coupled thin plates. Journal of Sound and Vibration, 2001; 244(4): 651--668
  • 10闫安志.模拟无限长梁的功率流强度测量[J].焦作工学院学报,1998,17(2):153-157. 被引量:4

共引文献58

同被引文献131

引证文献26

二级引证文献122

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部