拱坝实验模态分析  

EXPERIMENTAL MODAL ANALYSIS ON ARCH DAM

作　　者：王义锋 高明[2] 

机构地区：[1]成都勘测设计院 [2]南京水利科学研究院材料结构研究所

出　　处：《水利水运科学研究》1991年第1期50-62,共13页

摘　　要：应用实验模态分析方法,对双曲拱坝的动力特性进行了试验研究。同时,以有限元法对拱坝的原型、模型进行了计算校核,取得了较为一致的成果。此外,利用模态分析及参数识别的结果,对拱坝与库水的相互作用做了一些探讨。结果表明,实验模态分析对于分析拱坝结构的动力特性具有一定的优越性,且简便易行,重复性强,可靠性高,费用经济。Based on the method of experimental modal analysis, a test on the dynamic characteristics of arch dam is performed, and the tested results are compared with the analytical results by finite element method showing satisfactory agreement. Using the tests results, studies on damreservoir interaction are also carried out, and the results are compared with that calculated by Westergaard's formula of hydro-dynamlc pressure. The work of the paper shows that the method of experimental modal analysis is an effective, convenient, as well as economical method for dynamic studies on large hydraulic structures.

关 键 词：双曲拱坝 模态分析 实验 

分 类 号：TV642.42[水利工程—水利水电工程]