A method for modeling and analyzing the rotor dynamics of a locomotive turbocharger

作者：Yang, Jianwu^*; Gao, Yaju; Liu, Zhifeng; Zhao, Chengbin; Kang, Taiti; Gu, Lichao; Xu, Bo

来源：Nonlinear Dynamics, 2016, 84(1): 287-293.

DOI：10.1007/s11071-015-2497-z

• Locomotive turbocharger
• Modal analysis
• Rotor dynamics
• Moment

The rotor of the locomotive turbocharger is prone to malfunction of the turbocharger, and it is also the most important part of the turbocharger. The reasonable establishment of rotor dynamics model is very important in the study. It determines the accuracy of analysis. The influence of the shaft quality on the turbine and impeller was not considered in the process of analyzing the dynamic model in the passed research. But the quality of locomotive turbocharger rotor shaft is relatively large, it cannot be ignored because it will have a large bending moment in the model simplified. So the rotor dynamic equation was deduced in the case of considered the quality of the rotor axis. The rotor of the turbocharger rotor was simplified firstly, the various parts of the simplified rotor were analyzed, and the dynamic model of the rotor was established. And the dynamic model was verified by the hammer experiment. The factors considered in the dynamic model were more comprehensive, so the model would be more practical for the future research.

• 出版日期2016-4
• 单位北京工业大学