Results 21 to 30 of about 2,071 (285)
Numerical simulation and experimental testing of dynamic stiffness of angular contact ball bearing
Angular contact ball bearings are widely used in the multiple rotor system, such as gear box, machine tool spindle, and aero-engine rotors. The support stiffness is very important to the vibration of shafting.
Haitao Luo +5 more
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As a kind of common phenomenon in practical engineering, misalignment error considerably changes the working performance of bearing. However, it has rarely attracted attention in the study of duplex angular contact ball bearings (DACBBs). To evaluate the
Tengfei Xu, Lihua Yang, Kai Wang
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The effect of angle misalignment of bearing on bearing fatigue life in spindle system with non-ideal installation conditions was studied in this paper. For achieving this,firstly,the analysis model of multiple bearings-spindle system was introduced.
ZHANG MengQi +3 more
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Solid-lubricated rolling bearings are widely used in the aerospace field and are key components to support spacecraft rotors. During the start-up of the engine, the sharp acceleration may cause bearing skidding, resulting in damage of the solid ...
Shijie Zhang +3 more
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Based on the displacement coupling relationship and loading equilibrium relationship between rolling bearings and rotor,a dynamics model of rolling bearings- rotor system based on the internal load- bearing deformation coordination condition is ...
Ye Zhenhuan, Liu Zhansheng, Wang Liqin
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Experimental Study on Oil Interruption Performance of Novel Cageless Angular Contact Ball Bearings
The ability of bearings to resist oil interruption directly affects the reliability of aero engines. In order to explore the dry operation performance of a novel cageless angular contact ball bearing, an oil break test scheme under the bearing ring is ...
Tao Xu, Yanfu Li, Shuidian Xu, Jingyu Mo
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NONLINEAR DYNAMICS OF A ROTOR WITH CANTILEVERED DISK RESTING ON ANGULAR CONTACT BALL BEARINGS [PDF]
The mathematical model of nonlinear oscillations of the rotor resting on angular contact ball bearings is developed. The disc is fixed on the console end of the shaft. The deflection of the shaft, and the elastic deformation of the bearings have the same
S. Filipkovskyi
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The dynamic interactions among the internal components of aero-engine main shaft bearings under unsteady-state conditions are intricate, involving clearance collisions, contact, friction, and lubrication.
Haisheng Yang, Qiang Liu, Si’er Deng
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OPTIMIZATION PROGRAM DESIGN AND RESEARCH OF ANGULAR CONTACT BALL BEARING CHANNEL CURVATURE RADIUS
Firstly the theory of Hertz was used to calculate the maximum stress of same angular contact ball bearings in the same condition and different internal and external channel curvature radius.
DENG Tao +4 more
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KINEMATICS ANALYSIS OF HIGH-SPEED ANGULAR CONTACT BALL BEARINGS BASED ON FINITE ELEMENT
Because the traditional method is not easy to test the motion characteristics of angular contact ball bearings under high-speed operation,a multi-body dynamic finite element model of balls,cages and rings was established based on ABAQUS.Taking 7005 type ...
BIAN Qiang +4 more
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