Rub vibration responses of rotating blade and flexible casing

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (5) : 162-168.

GUO Xumin1，SUN Qi1，MA Hui1,2，SUN Fan1

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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.

Key words

cylindrical shell / blade-flexible casing rubbing / vibration response / nodal diameter vibration

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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

References

[1] Sinha S K. Dynamic characteristics of a flexible bladed-rotor with Coulomb damping due to tip-rub [J]. Journal of Sound and Vibration, 2004, 273: 875-919.
[2] Lesaffre N, Sinou J J, Thouverez F. Stability analysis of rotating beams rubbing on an elastic circular structure [J]. Journal of Sound and Vibration, 2007, 299(1): 1005-1032.
[3] 太兴宇，马辉，谭祯，等. 叶片-机匣系统碰摩振动响应分析 [J]. 振动、测试与诊断, 2014, 34(2): 280-287.
TAI Xingyu, MA Hui, TAN Zhen, et al. Analysis of vibration response during blade-casing rub events [J]. Journal of vibration, Measurement & Diagnosis, 2014, 34(2): 280-287.
[4] Ma H, Tai X, Han Q, et al. A revised model for rubbing between rotating blade and elastic casing [J]. Journal of Sound and Vibration, 2015, 337: 301-320.
[5] Hemmatnezhad M, Rahimi G H, Tajik M, et al. Experimental, numerical and analytical investigation of free vibrational behavior of GFRP-stiffened composite cylindrical shells [J]. Composite Structures, 2015, 120: 509-518.
[6] Rodrigues L, Silva F M A, Gonçalves P B, et al. Effects of modal coupling on the dynamics of parametrically and directly excited cylindrical shells [J]. Thin-Walled Structures, 2014, 81: 210-224.
[7] Song X, Zhai J, Chen Y, et al. Traveling wave analysis of rotating cross-ply laminated cylindrical shells with arbitrary boundaries conditions via Rayleigh–Ritz method [J]. Composite Structures, 2015, 133: 1101-1115.
[8] 王宇，罗忠. 薄壁圆柱壳构件受迫振动的响应特征研究 [J]. 振动与冲击, 2015, 34(7): 103-108.
WANG Yu, LUO Zhong. Forced vibration response characteristics of thin cylindrical shell [J]. Journal of vibration and shock, 2015, 34(7): 103-108.
[9] 李晖，孙伟，张永峰，等. 约束态薄壁圆柱壳固有频率的精确测试 [J]. 东北大学报(自然科学版)，2013, 34(9): 1314-1318.
LI Hui, SUN Wei, ZHANG Yongfeng, et al. Accurate test of natural frequency of constrained thin cylindrical shell [J]. Journal of Northeastern University (Natural Science), 2013, 34(9): 1314-1318.
[10] 曹志远. 板壳振动理论 [M]. 北京：中国铁道出版社，1989.
CAO Zhiyuan. Vibration theory of plates and shells [M]. Beijing: China Railway Publishing House, 1989.
[11] Chen G. Study on the recognition of aero-engine blade-casing rubbing fault based on the casing vibration acceleration [J]. Measurement, 2015, 65: 71-80.
[12] Chen G. Simulation of casing vibration resulting from blade-casing rubbing and its verifications [J]. Journal of Sound and Vibration, 2016, 361: 190-209.
[13] Turner K, Adams M, Dunn M. Simulation of engine blade tip-rub induced vibration [C]. Proceedings of GT2005, Ren-Tahoe, Nevada, USA, 2005.
[14] Turner K, Dunn M, Padova C. Airfoil deflection characteristics during rub events [J]. Journal of Turbomachinery, 2012, 134: 011018-1-011018-7.
[15] 太兴宇，马辉，谭祯，等. 脉冲力加载下的叶片-机匣动力学特性研究 [J]. 东北大学学报(自然科学版), 2012, 33(12): 1759-1799.
TAI Xingyu, MA Hui, TAN Zhen, et al. Research on Dynamic Characteristics of Blade-Casing with Impulse Loading [J]. Journal of Northeastern University (Natural Science), 2012, 33(12): 1759-1799.
[16] Legrand M, Pierre C, Peseux B. Structural modal interaction of a four degree of freedom bladed disk and casing model [J]. Journal of Computational and Nonlinear Dynamics, 200, 5(4): 13-41.
[17] 马辉，孙祺，太兴宇，等. 旋转叶片-机匣碰摩振动响应分析 [J]. 振动与冲击, 2017, 36(14): 26-32.
MA Hui, SUN Qi, TAI Xingyu, et al. Vibration response analysis of rotating blade-casing rubbing [J]. Journal of vibration and shock, 2017, 36(14): 26-32.
[18] Ma H, Yin F, Tai X, et al. Vibration response analysis caused by rubbing between rotating blade and casing [J]. Journal of Mechanical Science and Technology, 2016, 30(5): 1983-1995.