Power flow analysis of vertical vibration of the water turbine under the condition of double disturbances

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (21) : 63-68.

XU Xin-yong 1 ZHI Bao-ping 2 3 JIANG Li 1 3 WU Shan-shan 1

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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;

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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[J]. Journal of Vibration and Shock, 2016, 35(21): 63-68

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