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High-speed rolling bearing - Rotor friction damping

filmdamperandanunbalancedflexiblerotor [J]. JofEngineeringforGasTurbineandPower, 2004,126 (4) :855-866. SuWeimin. Characteristicofanewdampedflexiblesupportinturbopumprotorforengine [J]. JofPropulsionTechnology, 2000,21 (5) :53-57. (InChinese) GuoBaoting, ZhuZigen. Applicationofmetal-rub-berdampertotherotorsystem [J]. JofAerospacePower, 2003,18 (5) :662-668. (InChinese) GaulL, NitscheR. Frictioncontrolforvibrationsuppression [J]. MechanicalSystemandSignalPro-No. 1WangLiqin, eta1. ReducingVibrationwithFriction-DampinginHigh-Speed ... ... 53 [6] [7] cessing, 2000,14 (2) :139-150. RittwegerA, AlbusJ, HornungE, eta1. Passivedampingdevicesforaerospacestructures [J]. ActaAstronautica,[link widoczny dla zalogowanych], 2002,50 (10) :597-608. SherifHA. AbuOmarTM. Mechanismofenergydissipationinmechanicalsystemwithdryfriction [J]. TribologyInternational, 2004,37 ( Cool

:235-244. E83 [93FanTianyu,[link widoczny dla zalogowanych], LiaoMingfu. Dynamicbehaviorofaro-torwithdryfrictiondampers [J]. MechanicalScienceandTechnology, 2003,22 (5) :743-745, 760. (InChinese) 'FanTianyu, LiaoMingfu, WangYankai. Experi-mentalinvestigationofthedryfrictiondamperwithelasticsupport [J]. MechanicalScienceandTechnol-ogy, 2005,[link widoczny dla zalogowanych],24 (9) :1062-1065. (InChinese) high-speed rolling bearing of a rotor system with friction damping ancient music Zheng Zhi Wang Liqin Li Wenzhong (Mechanical & Electrical Engineering Harbin Institute of Technology, Harbin, 150001, China) Abstract: In order to suppress high-speed rolling bearing of a rotor system through the critical speed is too large when vibration, we use the elastic supporting structure of the friction damper. Analysis of the vibration of the support mechanism and support features, the friction damper is designed to study its response of rotor system unbalance. The results showed that appropriate mechanical structure, the damper stiffness factor and the friction factor depends only on the inner cone angle and friction coefficient on the contact surface. By changing these two parameters and the shell axial stiffness, can change its stiffness and damping characteristics. Supporting the introduction of the rotor system to reduce friction damper support stiffness, thereby reducing the system's critical speed,[link widoczny dla zalogowanych], to avoid the working speed. In addition, damping can increase the support and inhibit the critical amplitude, the vibration reducing system rumored force. Key words: high-speed rotor system; rolling; friction damping; vibration; critical speed in the ring Key words: 0328; THl17.1; V231.96 Foundation item: National Natural Science Foundation of China (5O575O54) funded projects; Harbin research programs ( 2004AA2CG126) funded project.

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