振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
6期
23-28
,共6页
水电站%振动%识别%传递熵%传递路径
水電站%振動%識彆%傳遞熵%傳遞路徑
수전참%진동%식별%전체적%전체로경
hydropower house%vibration%identification%transfer entropy%transfer path
针对水轮发电机组与厂房结构相互作用耦合动力系统的振动传递路径及传递方向反分析问题，提出基于信息流理论的延时传递熵识别方法。结合数值模拟分析，研究基于传递熵的水电站振动信息传递路径识别方法；结合现场测试资料开展对原型水电站中不同振源信号传递方向、传递途径识别。为进一步分析水电站振动传递规律、振源位置及内在机理提供新的时域识别方法及相关研究结论。
針對水輪髮電機組與廠房結構相互作用耦閤動力繫統的振動傳遞路徑及傳遞方嚮反分析問題，提齣基于信息流理論的延時傳遞熵識彆方法。結閤數值模擬分析，研究基于傳遞熵的水電站振動信息傳遞路徑識彆方法；結閤現場測試資料開展對原型水電站中不同振源信號傳遞方嚮、傳遞途徑識彆。為進一步分析水電站振動傳遞規律、振源位置及內在機理提供新的時域識彆方法及相關研究結論。
침대수륜발전궤조여엄방결구상호작용우합동력계통적진동전체로경급전체방향반분석문제，제출기우신식류이론적연시전체적식별방법。결합수치모의분석，연구기우전체적적수전참진동신식전체로경식별방법；결합현장측시자료개전대원형수전참중불동진원신호전체방향、전체도경식별。위진일보분석수전참진동전체규률、진원위치급내재궤리제공신적시역식별방법급상관연구결론。
The coupled vibration of water turbine generator set and power house in hydropower station produces superimposed and coupled signals from multiple vibration sources.The time-delayed transfer entropy was proposed to identify the transport direction and the path of vibration information.The identifying method for the information transfer was studied with the help of a simulation model.Based on the field experiments data,the actual paths of different vibration sources were identified and analyzed.A new time domain identifying method was presented,which can be beneficial to the study of the transmission regularity,source location and inherence mechanism of the vibration in hydropower station.
