| Citation: | CHEN Xueqi, LI Jie, MA Yanhong, et al. Influence of assembly on unbalanced state and dynamic response dispersity of high-speed rotors[J]. Journal of Aerospace Power, 2025, 40（8）：20240576 doi: 10.13224/j.cnki.jasp.20240576
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Advanced aero-engine rotors require lightweight and high-efficiency designs, leading to increased rotational speeds. This makes their dynamic response highly sensitive to unbalanced states and assembly effects. To address this issue, the correlations between assembly parameters and rotor unbalanced states were investigated. An assembly-dependent rotor dynamic response dispersion model was developed, revealing how assembly affected response variability. Results indicated that different assemblies altered the deflection distribution of the rotor’s inertia spindle. Notably, the tilt of a thin turbine disc’s inertia spindle generated significant rotational inertia moment excitation under high-speed conditions. Variations in assembly parameters caused dispersion in the turbine disc’s spindle tilt amplitude, which critically contributed to high-speed rotor dynamic response dispersion.
| [1] |
JEFFCOTT H H. XXVII. The lateral vibration of loaded shafts in the neighbourhood of a whirling speed: the effect of want of balance[J]. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1919, 37(219): 304-314. doi: 10.1080/14786440308635889
|
| [2] |
RAO J S. History of rotating machinery dynamics[M]. New York: Springer, 2011.
|
| [3] |
SMITH D M. The motion of a rotor carried by a flexible shaft in flexible bearings[J]. Proceedings of the Royal society A: Mathematical, Physical And Engineering Sciences, 1933, 142(846): 92-118.
|
| [4] |
DEN HARTOG J P. Mechanical vibration[M]. New York: McGraw-Hill Book Company, 1940.
|
| [5] |
TIMOSHENKO S P. Vibration problems in engineering[M]. New York: D. Van Nostrand, 1955.
|
| [6] |
CARNEGIE W. Rotary inertia and gyroscopic effects in overhung shaft systems[J]. Bulletin of Mechanical Engineering Education, 1964, 3: 191.
|
| [7] |
KIKUCHI K. Analysis of unbalance vibration of rotating shaft system with many bearings and disks[J]. Bulletin of JSME, 1970, 13(61): 864-872. doi: 10.1299/jsme1958.13.864
|
| [8] |
CRUZ W, ARZOLA N, ARAQUE O. Modeling and experimental validation of the vibration in an unbalance multi-stage rotor[J]. Journal of Mechanical Engineering and Sciences, 2019, 13(3): 5703-5716. doi: 10.15282/jmes.13.3.2019.30.0456
|
| [9] |
DATZ J, KARIMI M, MARBURG S. Effect of uncertainty in the balancing weights on the vibration response of a high-speed rotor[J]. Journal of Vibration and Acoustics, 2021, 143(6): 061002. doi: 10.1115/1.4049628
|
| [10] |
洪杰, 杨哲夫, 孙博, 等. 局部旋转惯性对转子系统动力特性的影响[J]. 航空动力学报, 2022, 37(4): 673-683. HONG Jie, YANG Zhefu, SUN Bo, et al. Effect of local rotational inertia on dynamic characteristics of rotor system[J]. Journal of Aerospace Power, 2022, 37(4): 673-683(. in Chinese
HONG Jie, YANG Zhefu, SUN Bo, et al. Effect of local rotational inertia on dynamic characteristics of rotor system[J]. Journal of Aerospace Power, 2022, 37(4): 673-683(. in Chinese)
|
| [11] |
洪杰, 闫琦, 丰少宝, 等. 界面连接多盘转子旋转惯性模型及动力响应特性[J]. 航空动力学报, 2022, 37(5): 897-908. HONG Jie, YAN Qi, FENG Shaobao, et al. Rotational inertia model and dynamic response characteristics of multi-disk rotor system with interface[J]. Journal of Aerospace Power, 2022, 37(5): 897-908. (in Chinese
HONG Jie, YAN Qi, FENG Shaobao, et al. Rotational inertia model and dynamic response characteristics of multi-disk rotor system with interface[J]. Journal of Aerospace Power, 2022, 37(5): 897-908. (in Chinese)
|
| [12] |
HAN Zhuoluo, WANG Dong, WANG Yongfeng, et al. Dynamic effects of the initial skewness of the inertial principal axis on the rotor with bolted joint[J]. Mechanical Systems and Signal Processing, 2023, 200: 110564. doi: 10.1016/j.ymssp.2023.110564
|
| [13] |
WU Fayong, HONG Jie, CHEN Xueqi, et al. Analysis of high-speed rotor vibration failure due to sudden angular deformation of bolt joints[J]. Symmetry, 2023, 15(10): 1937. doi: 10.3390/sym15101937
|
| [14] |
WU Fayong, HONG Jie, CHEN Xueqi. Distributed rotational inertia load excitation model and its impact on high-speed jointed rotor dynamic response[J]. Symmetry, 2023, 15(11): 2009. doi: 10.3390/sym15112009
|
| [15] |
SHUGUO L, YANHONG M, DAYI Z, et al. Studies on dynamic characteristics of the joint in the aero-engine rotor system[J]. Mechanical Systems and Signal Processing, 2012, 29: 120-136.
|
| [16] |
LIU Yi, LIU Heng, FAN Bowen. Nonlinear dynamic properties of disk-bolt rotor with interfacial cutting faults on assembly surfaces[J]. Journal of Vibration and Control, 2018, 24(19): 4369-4382. doi: 10.1177/1077546317724602
|
| [17] |
LIU Yi, LIU Heng, FAN Bowen. Numerical analysis on the static-dynamic coupling influences of parallelism flaw in disc-rod rotor ball bearing system[J]. Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 2018, 232(1): 103-112.
|
| [18] |
CHEN Xueqi, MA Yanhong, HONG Jie. Vibration suppression of additional unbalance caused by the non-continuous characteristics of a typical aero-engine rotor[C]//Proceedings of the 10th International Conference on Rotor Dynamics-IFToMM. Cham, Swisse: Springer International Publishing, 2018: 34-48.
|
| [19] |
洪杰, 徐翕如, 苏志敏, 等. 高速转子连接结构刚度损失及振动特性[J]. 北京航空航天大学学报, 2019, 45(1): 18-25. HONG Jie, XU Xiru, SU Zhimin, et al. Joint stiffness loss and vibration characteristics of high-speed rotor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(1): 18-25. (in Chinese
HONG Jie, XU Xiru, SU Zhimin, et al. Joint stiffness loss and vibration characteristics of high-speed rotor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(1): 18-25. (in Chinese)
|
| [20] |
SALTELLI A, ANNONI P, AZZINI I, et al. Variance based sensitivity analysis of model output: design and estimator for the total sensitivity index[J]. Computer Physics Communications, 2010, 181(2): 259-270. doi: 10.1016/j.cpc.2009.09.018
|
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