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Date of Publication:2012-01-01

Journal:水利学报

Volume:43

Issue:5

Page Number:615-622

ISSN No.:0559-9350

Abstract:A FEM model has been established for a large hydropower house to
   calculate the frequency according to the test data of hydraulic turbine
   model.Based on the theory of power flow,and the method of power flow FEM
   as well as the APDL language,the power flow in wind cover,floor,pillars
   and gallery was calculated.The results show that the shear wave
   dominates during the process of spiral pulse energy conduction with the
   response along vertical direction and river flow direction.Turbine pier
   and wind cover are the main path for conduction due to the simpie
   structure form which is ineffectively to dissipate energy.Thick plates
   and walls can dissipate energy which comes from vibration source and
   restrict the vibration amplitude in superstructure of the hydropower
   house.

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