Dynamic response analysis on powerhouse structure of Shaanxi Zhen'an Pumped Storage Power Station
Due to the high water head,prominent problems of structural vibration in underground powerhouses and fre-quent start-stop of pumped storage power stations,the dynamic response analysis of underground powerhouses had re-ceived more attention as a key issue in the design and research of powerhouses.Taking Shaanxi Zhen'an Pumped Storage Power Station as an example,a solid model of the underground powerhouse was established using ANSYS finite element software.The natural vibration characteristics and resonance analysis of the powerhouse,as well as the dynamic response of the underground powerhouse under the action of unit load and pressure pulsation were studied.The overall and local structural natural vibration characteristics and dynamic response of the powerhouse under different working conditions were analyzed.The results indicated that the anti-vibration design of the Zhen'an Pumped Storage Power Station build-ing was basically reasonable,and the stairs and columns,as weak links in the building,need to be given special atten-tion.When the power station operates at a low head,the dynamic response of the plant structure increases significantly.In actual operation,reasonable scheduling should be carried out to minimize the duration of low head operation.The re-search results can provide a reference for the design of similar engineering projects.
vibration of powerhousedynamic responseself-vibration characteristicspressure fluctuationZhen'an Pumped Storage Power Station
万方数据
维普
