双扰动条件下水轮机竖向振动传导功率流分析

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摘要为分析水电站实际振动的复杂扰动对结构动力特性的影响，本文在单扰动分析的基础上，结合功率流、Kronecker代数、Hadamard积及随机摄动理论，推导了双扰动条件下的功率流随机参数结构分析方法，并应用于水电站竖向振动传导分析。通过水电站厂房结构振动分析表明，双扰动分析方法的结果是正确的，可分析各参数扰动对能量传导率的灵敏度问题。据此可更全面的分析水电站竖向振动的传递路径，同时为解决复杂扰动的水电站振动传递路径系统分析提供一种新的解决思路。

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关键词 ：双扰动, 功率流, 随机参数结构, 传导路径, 水电站

Abstract：The purpose of this work is to analyze the effect of structure parameter disturbance on the dynamic characteristics of an practical vibration hydropower station powerhouse. This research deduces the power flow analysis method of random parameter structure under double disturbances. The research uses the analysis of single disturbance, combined with the power flow, Kronecker algebra, Hadamard product and random perturbation theory. The application of the stochastic perturbation method is expanded. The correctness and feasibility of these formulae are validated by analyzing the hydropower station powerhouse vibration model. The study provides another way to accurately analyze the transfer paths of vertical vibration in hydropower stations.

Key words： dual disturbances power flow stochastic perturbation method transfer path hydropower station;

收稿日期: 2015-08-05 出版日期: 2016-10-25

引用本文:

许新勇1，职保平2，3，蒋莉1,3，吴珊珊1. 双扰动条件下水轮机竖向振动传导功率流分析[J]. 振动与冲击, 2016, 35(21): 63-68.
XU Xin-yong 1 ZHI Bao-ping 2 3 JIANG Li 1 3 WU Shan-shan 1. Power flow analysis of vertical vibration of the water turbine under the condition of double disturbances. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(21): 63-68.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I21/63

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