Abstract
An industrial turbo engine is modeled and meshed in ANSYS using solid elements. A rotordynamic analysis of the selected parts of the turbo engine is performed. For the unbalance response prediction, a novel method for modeling unbalance in 3D solid rotor model is presented and validated using a simple rotor model. In order to reduce the model order degree, transfer functions of the casing and bearings are generated and incorporated into the rotor-bearing system to account for the influence of elastic support stiffness on the rotor system. Modal and unbalance response analysis is performed on the 3D solid finite element rotor-bearing model using the unbalance modeling method presented in this paper. The results obtained from modal and unbalance analysis are compared and discussed.
Publisher
Trans Tech Publications, Ltd.
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