Analysis of the cause of the 40Hz frequency component in spiral casing of a high-head pump turbine-Reference-Cited by-同舟云学术

Analysis of the cause of the 40Hz frequency component in spiral casing of a high-head pump turbine

Published:2024-06-01 Issue:1 Volume:2752 Page:012063
ISSN:1742-6588
Container-title:Journal of Physics: Conference Series
language:
Short-container-title:J. Phys.: Conf. Ser.

Author:

Jia W B,Guan Z W,Liang Q W,Liu Y,Wang Z N,Cheng H,He Q Y

Abstract

Abstract Vibration and noise problems affect the safe and stable operation of pump turbines. For the design of pump turbines, it is crucial to accurately identify the excitation sources and their evolution laws that cause vibration and noise. Based on numerical calculation methods, this paper studies the 40Hz frequency component that occurs in the spiral case of a prototype pump turbine during operation in a power plant. Upon analysis of the internal flow characteristics of the spiral case, the study examines the causes for the formation of pressure pulsations at this frequency component and their transmission laws.

Publisher

IOP Publishing

Link

https://iopscience.iop.org/article/10.1088/1742-6596/2752/1/012063/pdf

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