旋转叶片-柔性机匣碰摩振动响应分析

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (5) : 162-168.

论文

旋转叶片-柔性机匣碰摩振动响应分析

郭旭民1，孙祺1，马辉1,2,3，孙帆1

作者信息 +

Rub vibration responses of rotating blade and flexible casing

GUO Xumin1，SUN Qi1，MA Hui1,2，SUN Fan1

Author information +

文章历史 +

摘要

以旋转叶片-柔性机匣为研究对象，基于ANSYS分析软件，考虑叶片旋转导致的离心刚化，旋转软化和科氏力效应，分别采用悬臂梁和圆柱壳来模拟叶片和柔性机匣，分析了碰摩导致的机匣及叶片振动，并与将机匣简化为集中质量点模型进行了对比。研究结果表明，考虑机匣柔性时能观察到由碰摩诱发的机匣节径振动，并且碰摩力和叶片振动响应相对于集中质量点模型均呈现出降低趋势。

Abstract

A rotating blade and a flexible casing were taken as the study object, and influences of centrifugal stiffening, spin softening and Coriolis force caused by blade-rotating were considered. A cantilever beam and a cylindrical shell were used to imitate the blade and flexible casing, respectively and analyze their vibrations due to their rubbing based on the software ANSYS. The simulation results were compared with those obtained during the casing being simplified as a lumped mass point. The results showed that the pitch diameter vibration of the casing induced by rubbing is observed when considering the casing’s flexibility; rubbing force and blade vibration response have a declining trend compared with those obtained using the casing’s lumped mass point model.

导出引用

郭旭民1，孙祺1，马辉1,2,3，孙帆1. 旋转叶片-柔性机匣碰摩振动响应分析[J]. 振动与冲击, 2019, 38(5): 162-168

GUO Xumin1，SUN Qi1，MA Hui1,2，SUN Fan1. Rub vibration responses of rotating blade and flexible casing[J]. Journal of Vibration and Shock, 2019, 38(5): 162-168

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