According to an electric automotive powertrain

a hammering modal test is carried out.The modal parameters are identified by PolyMAX.The validation of the modal parameters is testified by frequency response function synthesis.Then a finite element model（FEM） is established based on hypermesh

the nature frequency and vibration mode of powertrain are obtained through the simulation.The modal parameters from test are coincided with the simulation through comparing the test result with simulation result.The results indicate the correctness of the FEM

the basis for the subsequent dynamic analysis is provided.