摘要
漫湾电站拦污栅体形布置特殊，结构复杂，本文采用大比尺模型动态测试数据，使用新的系统识别方法详细研究了该拦污栅结构在库空、库满两种工况下栅一坝联合作用时的动力特性。识别出了两种工况下结构的各阶模态参数及相应的振型。结果表明，使用本文的识别方法，能自动适应结构的非线性特性，准确地识别出任意非线性振动下的复杂结构的各阶模态参数及振型。本研究的结果已被试验观测所验证。
The trashrack of Manwan hvdro power plant has a special and complexcomfiguration and is located at the high seismic intensity region。Therefore,it is impor-tant to understand precisely its dynamic behaviour.In this paper,the dynamic character-istics of this trashrack under the interaction of reservior-trashrack-dam is studied by usingthe testing data and the authors’indentification methods.
基金
云南省应用基础研究基金
云南省教委基金
关键词
水电站
动力特性
拦污栅
Manwam hydro power plant,vibration,dynamic characteristics,identifica-tion.trashrack
