The comparison of usual calculation model for the vibration feature of twist blade in steam turbine

Twist blade in steam turbine is studied mostly ,and the vibration feature is the focus. The thesis listed three calculation models of twist blade in steam turbine and described the sadvantages disadvantages and the applied field of each one by collecting information. In order to make the model and the calculation better, it is proved that three-dimension finite element model would become an important method for studying the vibration feature of twist blade in steam turbine.