Nonlinear vibration control for hydro-generator unit&rsquo;s shafting based on MRD

PDF(955 KB)

Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (1) : 79-84.

Nonlinear vibration control for hydro-generator unit’s shafting based on MRD

SUN Wanquan1,2,ZHANG Ning1

Author information +

History +

Abstract

Considering actions of various nonlinear factors, a magnetorheological fluid damper (MRD) was introduced into nonlinear vibration model of a hydro-generator unit. The nonlinear dynamic model of the hydro-generator unit shafting based on MRD was established, and effects of MRD on its vibration were studied. Through contrastively study the new model and the traditional nonlinear model for hydro-generator unit, the results showed that using MRD damping passive control can significantly improve dynamic responses of the unit system, and reduce vibration displacement amplitudes and velocity responses of the unit system during its periodic motion without changing its motion form; it can also suppress complex quasi-periodic motion appearing after rotating speed rises under some transient conditions, and reduce its amplitude fluctuation.

Key words

hydro-generator unit / magnetorheological fluid damper (MRD) / vibration control / nonlinear vibration

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

SUN Wanquan1,2,ZHANG Ning1. Nonlinear vibration control for hydro-generator unit’s shafting based on MRD[J]. Journal of Vibration and Shock, 2020, 39(1): 79-84

References

[1] 周建中, 张勇传, 李超顺. 水轮发电机组动力学问题及故障诊断原理与方法[M]. 华中科技大学出版社, 2013.
Zhou Jian-zhong, Zhang Yong-chuan, Li Chao-shun. Dynamics problems and fault diagnosis principles and methods of hydroelectric generating units [M]. Huazhong University of Science and Technology Press, 2013.
[2] 李苹,窦海波,王正.水轮发电机组主轴系统的建模及其非线性瞬态响应[J].清华大学学报(自然科学版),1998(06):124-129.
Li Ping, Dou Hai-bo, Wang Zheng. Modeling and Nonlinear Transient Response of the Spindle System of Hydroelectric Generators [J]. Journal of Tsinghua University (Natural Science Edition), 1998 (06): 124-129.
[3] Zhenyue MA，Zhiqiang S. Nonlinear Dynamic Characteristic Analysis of the Shaft System in Water Turbine Generator Set[J]. Chinese Journal of Mechanical Engineering, 2009, 22(1):124-131.
[4] 张雷克. 水轮发电机组轴系非线性动力特性分析[D].大连理工大学,2014.
Zhang Lei-ke. Nonlinear dynamic characteristics analysis of hydro-generator shafting [D]. Dalian University of Technology, 2014.
[5] Huang Z , Zhou J , Yang M , et al. Vibration characteristics of a hydraulic generator unit rotor system with parallel misalignment and rub-impact[J]. Archive of Applied Mechanics, 2011, 81(7):829-838.
[6] Zeng Y, Zhang L, Guo Y, et al. The generalized Hamiltonian model for the shafting transient analysis of the hydro turbine generating sets[J]. Nonlinear Dynamics, 2014, 76(4):1921-1933.
[7] V.Piccirillo,J.M.Balthazar,A.M.Tusset.Chaos control and impact suppression in rotor-bearing system using magnetorheological fluid[J].The European Physical Journal Special Topics.2015,Vol.224(No.14-15)：3023-3040.
[8] C Sakai, H Ohmori, A Sano. Modeling of MR damper with hysteresis for adaptive vibration control[J].Proceedings of the 42nd IEEE Conference on Decision & Control (Maui,Hawaii USA,December 2003)
[9] Xing J,He L D,Wang K. Optimizing Control for Rotor Vibration with Magnetorheological Fluid Damper[J].Transactions of Nanjing University of Aeronautics and Astronautics,2014,31(05):538-545.
[10] Forte, P; Paternò M, Rustighi, E. A Magnetorheological Fluid Damper for Rotor Applications[J].International Journal of Rotating Machinery.2004,Vol.10(NO.3)
[11] 刘永强,杨绍普,廖英英.一种磁流变阻尼器模型参数识别新方法[J].机械工程学报,2018,54(06):62-68.
Liu Yong-qiang, Yang Shao-pu, Liao Ying-ying. A new method for parameter identification of MR damper model [J]. Journal of Mechanical Engineering, 2018, 54 (06): 62-68.
[12] 李潮,陈章位,贺惠农.磁流变阻尼器性能检测系统的研究[J].振动与冲击,2018,37(05):207-212.
Li Chao, Chen Zhang-bian, He Hui-nong. Research on MR Damper Performance Detection System [J]. Vibration and Impact, 2018,37 (05): 207-212.
[13] 黄志伟,周建中,寇攀高等. 水轮发电机组轴系非线性电磁振动特性分析[J].华中科技大学学报(自然科学版),2010,38(07):20-24.
Huang Zhi-wei, Zhou Jian-zhong, Kou Pan-gao,et al. Analysis of Nonlinear Electromagnetic Vibration Characteristics of Hydrogenerator Shafting [J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2010, 38 (07): 20-24.
[14]Xu B , Chen D , Zhang H , et al. Dynamic analysis and modeling of a novel fractional-order hydro-turbine-generator unit[J]. Nonlinear Dynamics, 2015, 81(3):1263-1274.
[15] 高普云. 非线性动力学[M]. 国防科技大学出版社, 2005.
Gao Pu-yun. Nonlinear Dynamics [M]. University of Defense Science and Technology Press, 2005.
[16]李忠刚,陈照波,陈予恕等.非线性转子-密封系统动力学行为演变机理研究[J].哈尔滨工程大学学报,2016,37(12):1704-1708.
Li Zhong-gang, Chen Zhao-bo, Chen Yu-shu, et al. Study on the evolution mechanism of dynamic behavior of non-linear rotor-seal system [J]. Journal of Harbin University of Engineering, 2016,37(12): 1704-1708.
[17] Wang, J, Meng, G .Study of the Vibration Control of a Rotor System Using a Magnetorheological Fluid Damper[J].Journal of Vibration and Control.2005,Vol.11(NO.2)：263-276.