3D Solid Finite Element Modeling and Rotordynamics of Large Rotating Machines:Application to an Industrial Turbo Engine
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 beatings 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-beating model using the unbalance modeling method presented in this paper.The results obtained from modal and unbalance analysis are compared and discussed.
Rotordynamics 3D solid model Dynamic stiffness Unbalance force Harmonic response
Wei Meng Ma Jian Jun Wang
School of jet Propulsion,Beihang University,HaiDian Distric,Beijing,Peoples Republic of China
国际会议
广州
英文
1879-1885
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）