%0 Journal Article
%T NATURAL CHARACTERISTICS OF WAVE PROPAGATION IN BEAM<br>梁波传播的固有特性
%A Cheng Wei
%A Zhu Dechao
%A Wang Dajun
%A <br>程伟
%A 诸德超
%A 王大钧
%J 力学学报
%D 1997
%I 
%X The natural characteristics of wave propagation in beam has been studied based on distributed parameter concepts, and the relations between those and the periodic structures are given. The influence of support condition on characteristics of wave propagation has been discussed. It is shown in this paper that some problem would create if an approximate method (such as finite element method) is used. The study results of this paper can be applied to analyse the periodic structures.
%K vibration analysis
%K wave propagation
%K periodic structure<br>振动分析
%K 波传播
%K 周期性结构
%K 结构波
%K 噪声
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=AE6D6FBC5E5081AC3CF22AD1BEE26250&yid=5370399DC954B911&vid=771469D9D58C34FF&iid=0B39A22176CE99FB&sid=A58CF3BAE79427D0&eid=7EBE588F611589FC&journal_id=0459-1879&journal_name=力学学报&referenced_num=5&reference_num=2