文章摘要
刘海生,杨春庄,陈士杰.统计能量分析方法声振预测应用研究[J].声学技术,2010,(2):192~197
统计能量分析方法声振预测应用研究
Vibroacoustic applications of statistical energy analysis method
投稿时间:2008-12-10  修订日期:2009-03-09
DOI:
中文关键词: 统计能量分析  声振耦合  共振传输  非共振传输  辐射比
英文关键词: Statistical Energy Analysis  sound and vibration coupling system  resonant transmission  non-resonant transmission  radiation ratio
基金项目:国家自然科学基金项目(10774114)
作者单位E-mail
刘海生 同济大学声学研究所, 上海, 200092 56614735@163.com 
杨春庄 同济大学声学研究所, 上海, 200092  
陈士杰 同济大学声学研究所, 上海, 200092  
摘要点击次数: 873
全文下载次数: 2069
中文摘要:
      从声振系统激励和响应的频谱特征、预测模型的特点、精度等方面总结了统计能量分析方法(SEA)在多个领域内的应用成果,得出了含有声子系统的双壳和单壳系统是两种基本的SEA声振预测模型的结论.该系统的特点是内外的声能交换须通过声振耦合来实现,当激发的声波频率低于双壳的共振频率时,双壳系统转化为单壳系统.深入讨论了影响其SEA模型预测精度的主要因素是结构子系统的划分方式、统计能量分析参数的测量,以及有界空间内声振耦合损耗因子的正确计算.
英文摘要:
      The achievements of applying Statistical Energy Analysis(SEA) Method in many fields have been summarized from the view points of the system excitation, feature of frequency response, prediction model and precision.It has been put forward that the double and single shell models containing acoustic subsystem are the basic types of sound and vi-bration coupling system.The feature of such systems is that the inside and outside sound field exchanges energy by sound-vibration coupling.The double system converts to a single system while the frequency of exciting sound lower than the resonant frequency of double shell.The main elements to influent the precision of such SEA models is division of subsystem, measurement of SEA parameters and coupling loss factor between sound field and vibration.
查看全文   查看/发表评论  下载PDF阅读器
关闭