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Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:水利与建筑工程学报

Affiliation of Author(s):建设工程学部

Issue:6

Page Number:78-81

ISSN No.:1672-1144

Abstract:There is the strong vibration and noise after the operation of a pumped storage station ,which is influent in the security of equipment and healthy of people .In order to find out the reason of vibration ,the model analysis and reso-nance recheck for the floors and pillars of the powerhouse structure were studied by establishing three -dimensional finite element model of the underground powerhouse structure in the station .The harmonic response analysis method was pro-posed to study the vibration response of each part of the powerhouse structure under the action of the pressure fluctuations of water turbine based on the observational data .The results show that not only the vibration acceleration of the floors and pillars was larger as the amplitude of pressure fluctuation was larger and the vibration frequency was higher ,but also the local resonance happened .

Note:新增回溯数据