The Analysis And Research Of The GIS Structure Seismic Performance Based On ANSYS

Gas insulated enclosed combination switch (GIS) is the first choice of high voltageswitch equipment in the earthquake-prone areas. in this paper, the research of ZF33-126type GIS’s seismic performance was set as an example, the ANSYS finite elementanalysis and calculation has been carried on, a reasonable ZF33-126type structure finiteelement model has been established, and, this paper expounded the method of finiteelement analysis and calculation, studied the seismic performance of high voltageelectrical equipment represented by GIS. The works of this paper and the results of thisresearch are as follows:Firstly, this paper introduced the importance of high voltage electrical equipmentand present situation of its seismic performance study, then summarized the presentseismic design methods in the application of high voltage electrical equipment. Basedon the study of the above information, summarized the relevant research results and thedisadvantages that are still appear, the research direction and research content of thispaper is determined at last.Secondly, the static coefficient method, response spectrum method and time historyanalysis method, are introduced in detail. Respectively, pointed out their deficiencies ormajority in the seismic analysis of GIS, and finally selected time history analysismethod as the seismic design theory for this paper. In addition, the on the basis of finiteelement theory, ANSYS finite element software in GIS analysis of seismic performancecalculation process is presented.Thirdly, this paper introduces the whole process in the ANSYS software toestablish the GIS structure finite element model, including geometry model, materialparameters, unit type selection, the definition of model grid partition and load condition,boundary condition processing, etc. Then, using time history analysis method and the ANSYS finite element analysissoftware to complete the following contents: the calculation of ZF33-126type GISstructure static analysis, obtained the GIS structure under the effect of the staticstructural response, as for the initial state of seismic time history analysis; carried onmodal analysis for GIS ZF33-126type structure, obtained and analysed the modalparameters of the GIS; selected and input three different seismic waves, includig oneartificial waves same as in the shaking table test and two actual seismic record waves, tocomplete time history analysis of the ZF33-126type GIS structure,.Finally, studied the ANSYS software for the finite element dynamic analysisresults of ZF33-126type GIS, verified the validity of the finite element modelestablished in this paper for GIS structure; Through the modal analysis results of GISstructure, the acceleration and strain analysis results and the coMParison of differentstructural response under the action of seismic waves, this paper expounded the GISZF33-126type structure dynamic characteristics, comprehensively evaluated theresponse of GIS structure under the effect of expected earthquake; further analysisedtime history analysis results of the GIS structure in the normal working state constraints,make a piece of earthquake-resistance performance evaluation for ZF33-126type GIS;the methods in four different conditions to other GIS or high voltage electricalequipment structure seismic performance research is suggested.The author of this paper completed the work above and these important results areobtained by analysis seismic performance of GIS on the ANSYS. The results of thisstudy has important reference significance to the seismic performance research of theother GIS structures or high voltage electrical equipments.