考虑多叶片-机匣多点变形转静碰摩模型的机匣响应特征与验证

推进技术 ›› 2016, Vol. 37 ›› Issue (1): 128-145.

考虑多叶片-机匣多点变形转静碰摩模型的机匣响应特征与验证

王海飞,陈果

南京航空航天大学民航学院，江苏南京 210016,南京航空航天大学民航学院，江苏南京 210016

发布日期:2021-08-15
作者简介:王海飞，男，博士生，研究领域为转子动力学和航空发动机整机振动建模。
基金资助:
国家安全重大基础研究项目(613139)；江苏省研究生培养创新工程(KYLX_0295)；中央高校基本科研业务费专项资金资助。

Casing Response Characteristics and Its Verification Considering Multiple Blades-Casing Multiple Point Deformation Rotor-Stator Rubbing Model

College of Civil Aviation，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China and College of Civil Aviation，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China

Published:2021-08-15

摘要/Abstract

摘要： 针对航空发动机叶片-机匣碰摩故障，提出了一种考虑多叶片-机匣耦合振动下的转静碰摩故障模型，该模型在通用的弹性碰摩模型的基础上，考虑了多个叶片与圆盘之间的耦合作用、叶片与叶片之间的耦合作用、叶片与机匣之间碰摩故障以及叶片与机匣之间转静间隙变化对碰摩力的影响，能够模拟机匣单点、局部及整圈，转子的局部和整圈的碰摩规律。将所提出的碰摩模型运用于转子-支承-机匣耦合动力学模型中，利用数值积分获取碰摩故障下的机匣加速度响应规律。利用带机匣的航空发动机转子试验器，进行了转子叶片-机匣的机匣单点-转子全周的碰摩实验，仿真和实验取得了很好的一致性，验证了所提出的叶片-机匣碰摩新模型的正确有效性。并利用该模型仿真了其他碰摩状态下的碰摩故障特征和碰摩力随时间变化规律。

关键词: 航空发动机整机振动；叶片-机匣碰摩；转子-支承-机匣耦合动力学模型；机匣加速度信号；碰摩力

Abstract: For the aircraft engine blade-casing rubbing fault，a new aero-engine multiple blades-casing rubbing model which considers multiple blades-casing coupling vibration is put forward，based on the general elastic rubbing model. The new model considers the coupling action between the multiple blades and disk，the blade and blade coupling，blade and casing rubbing fault and the rotor-stator clearance change on rubbing forces，and it can simulate single point，part and whole-cycle rubbing faults on casing，part and whole-cycle rubbing faults on rotor. The new rubbing model is applied to the rotor-support-casing coupling model，and the casing acceleration responses under rubbing faults are obtained by the numerical integration approach. The aero-engine rotor tester with casing is used to carry out the rubbing experiment whose rubbing positions are the single point rubbing fault on casing and whole-cycle rubbing fault on rotor. The simulation results are found to agree well with the experimental results and the new blade-casing rubbing model is fully verified. Finally，the other rubbing faults with various rubbing positions are simulated，and their rubbing characteristics as well as the law of rubbing force variations with time are found out.

Key words: Whole aero-engine vibration；Blade-casing rubbing；Rotor-support-casing coupling dynamic model；Casing acceleration signal；Rubbing force

王海飞,陈果. 考虑多叶片-机匣多点变形转静碰摩模型的机匣响应特征与验证[J]. 推进技术, 2016, 37(1): 128-145.

WANG Hai-fei,CHEN Guo. Casing Response Characteristics and Its Verification Considering Multiple Blades-Casing Multiple Point Deformation Rotor-Stator Rubbing Model[J]. Journal of Propulsion Technology, 2016, 37(1): 128-145.

参考文献

[1] Beatty R F. Differentiating Rotor Response Due to Radial Rubbing[J]. Journal of Vibration,Acoustics, Stress, and Reliability in Design, 1985, 107(2), 151-160.
[2] Li G X, Paidoussis M P. Impact Phenomena of Rotor-Casing Dynamic System[J]. Nonlinear Dynamics, 1994, 5(1): 53-70.
[3] 张思进, 陆启韶, 王琪. 转子与定子几何不对中引起的碰摩分析[J]. 振动工程学报, 1998, 11(4): 492-456.
[4] 刘献栋. 旋转机械转静件碰摩故障及其诊断技术的研究[D]. 北京:北京航空航天大学, 1999.
[5] 褚福磊, 马正松, 冯冠平. 碰摩转子系统的混沌特征[J]. 清华大学学报(自然科学版), 1996, 36(7): 52-57.
[6] Chen G, LI C G, Wang D Y. Nonlinear Dynamic Analysis and Experiment Verification of Rotor-Ball Bearings-Support-Stator Coupling System for Aeroengine with Rubbing Coupling Faults[J]. Journal of Engineering for Gas Turbines and Power, 2010, 132(2).
[7] Williams R J. Simulation of Blade Casing Interaction Phenomena in Gas Turbines Resulting from Heavy Tip Rubs Using an Implicit Time Marching Method[R]. ASME GT 2011-45495 .
[8] 刘书国, 洪杰, 陈萌. 航空发动机叶片-机匣碰摩过程的数值模拟[J]. 航空动力学报, 2011, 26(6):1282-1288.
[9] 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, 2010, 5(4): 13-41.
[10] Sinha S K. Non-Linear Dynamic Response of a Rotating Radial Timoshenko Beam with Periodic Pulse Loading at the Free-End[J]. International Journal of Nonlinear Mechanics, 2005, 40: 113-149.
[11] Turner K, Adams M, Dunn M. Simulation of Engine Blade Tip-Rub Induced Vibration[C]. Nevada: Power for Land, Sea and Air Proceedings of GT2005, Ren-Tahoe, 2005.
[12] Turner K, Dunn M, Padova M. Airfoil Deflection Characteristics During Rub Events[J]. Journal of Turbomachinery, 2012, 134(1).
[13] 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): 1756-1761.
[14] Batailly A, Legrand M, Cartraud P, et al. Assessment of Reduced Models for the Detection of Modal Interaction through Rotor Stator Contacts[J]. Journal of Computational and Nonlinear Dynamics, 2010, 329: 5546-5562.
[15] Legrand M, Barailly A, Pierre C. Numerical Investigation of Abradable Coating Removal in Aircraft Engines through Plastic Constitutive Law[J]. Journal of Computational and Nonlinear Dynamics, 2012, 7(1).
[16] J Padovan, F K Choy. Nonlinear Dynamics of Rotor/Blade/Casing Rub Interactions[J]. Journal of Turbomachinery, 1987, 109: 527-534.
[17] Sunil K Sinha. Rotordynamic Analysis of Asymmetric Turbofan Rotor Due to Fan Blade-Out Event with Contact-Impact Rub Loads[J]. Journal of Sound and Vibration, 2013, 332:2253-2283.
[18] 徐斌, 高跃飞, 余龙. MATLAB有限元结构动力学分析与工程应用[M]. 北京:清华大学出版社, 2009.
[19] 张文. 转子动力学理论基础 [M]. 北京:科学出版社, 1990.
[20] 陈果. 航空发动机整机振动耦合动力学新模型及其验证[J]. 航空动力学报, 2012, 27(2):241-254.(编辑:朱立影)　　　　　　　　　　　　　*　收稿日期:2014-09-14；修订日期:2014-11-20。基金项目:国家安全重大基础研究项目(613139)；江苏省研究生培养创新工程(KYLX_0295)；中央高校基本科研业务费专项资金资助。作者简介:王海飞,男,博士生,研究领域为转子动力学和航空发动机整机振动建模。E-mail: wanghaifei1986318@163.com