内外双转子系统的支撑轴承的不对中分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (7) : 142-147.

论文

内外双转子系统的支撑轴承的不对中分析

冯国全1, 2;周柏卓1, 2;林丽晶3;韩清凯1

作者信息 +

Misalignment Analysis of Support Bearing in Inner-and-outer Dual-Rotor System

FENG Guoquan 1, 2;ZHOU Baizhuo 2;Lin Lijing3;HAN Qingkai 1

Author information +

文章历史 +

摘要

针对航空发动机内外双转子系统不对中问题，以某航空发动机转子系统为对象，运用转子动力学的有限元分析方法，给出内外双转子系统中介轴承的处理方法，建立了内外双转子系统动力学模型。通过数值计算，得到了该双转子系统的固有频率和振型，对比分析了考虑外转子(高压转子)支撑轴承不对中的转子振动响应。

Abstract

The bearing misalignment of the inner-and-outer dual-rotor system of an aero-engine is discussed. The whole rotor model including the connection of the internal supporting bearings between the outer and the inner rotors is established following the finite element method based on rotor dynamics. With numerical calculation, the natural frequencies and modes of the inner-and-outer dual-rotor system are obtained. The vibration responses of the rotor system are analyzed under different misalignment and different rotating speeds in cases of different misaligned outer supporting bearing of the out rotor, i.e. the higher pressure rotor.

导出引用

冯国全;;周柏卓;;林丽晶;韩清凯. 内外双转子系统的支撑轴承的不对中分析[J]. 振动与冲击, 2012, 31(7): 142-147

FENG Guoquan;;ZHOU Baizhuo;Lin Lijing;HAN Qingkai . Misalignment Analysis of Support Bearing in Inner-and-outer Dual-Rotor System[J]. Journal of Vibration and Shock, 2012, 31(7): 142-147