迷宫堰频率群分析

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英文篇名：Analysis of the group of the vibration frequency of the labyrinth weir 中文刊名：水力发电学报 英文刊名：Journal of Hydroelectric Engineering 作者：张社荣 ; 王海军 ; 贾树宝 英文作者：ZHANG Sherong 1 ; WANG Haijun 1 ; JIA Shubao 2 (1 School of Civil Engineering ; Tianjing University ; Tianjin\ 300072 ; 2 Xingxiang Institute of Water Conservancy Design ; Xinxiang\ 453000) 中文关键词：水力学 ; 迷宫堰 ; 频率群 ; 水弹实验 ; 模态 英文关键词：hydraulics ; the labyrinth weir ; the group of the frequency ; hydro elastic experiment ; mode 出版日期：2004-04-15 机构：天津大学建筑工程学院,天津大学建筑工程学院,河南省新乡水利设计院 天津300072 ,天津300072 ,新乡453000 年：2004 期：02 出版单位：水力发电学报

摘要

本文应用有限元方法对迷宫堰的振动特性进行分析 ,发现迷宫堰整体模型中出现了频率群的现象。从工程实用角度出发 ,我们由迷宫堰单宫的频率值和单片堰墙模态相似推出整体模型有限元计算结果中频率群的每群个数 ,并且取频率群的均值作为代表值。通过与水弹实验数据的对比 ,认为该代表值在结构的低阶频率区域是可用的。
In this paper,the vibration of the labyrinth weir is analyzed by means of finite element method.From the integral model of labyrinth weir,the group of the vibration phenomenon is found.On the basis of practicability,the counts of the group of the frequency of the integral model are induced from the frequency of one palace and the comparability of half palace.The average of the groups is considered as the representative value. Compared with the experimental results,the representative value is useful in the region of low lying frequency.

引文

[1]　傅志方,华宏星.模态分析理论和应用[M].上海交通大学出版社,2000.7.
    [2]　王良琛,混凝土坝地震动力分析[M].地震出版社,1981.
    [3]　CassidyJJohn,ChristopherACardner,andRobertTPeacock.BoardmanLabyrinthCrestSpillway[J].JournaloftheHydraulicsDivision,ASCE ,Vol.111,No.3.MAR .,1985.