Results 221 to 230 of about 70,005 (261)

Flexible Membrane Hydrostatic Air Bearing

Journal of Lubrication Technology, 1968
The ordinary hydrostatic air bearing requires a very smooth surface upon which to operate. A flexible membrane used as part of the air bearing eliminates this restriction. The membrane shape, pressure distribution, and minimum air gap as functions of bearing load and flow rate are determined by the simultaneous solution of a reduced form of the Navier ...
S. B. Levy, C. H. Coogan
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Magnetic Bearing Sizing for Flexible Rotors

Journal of Tribology, 1992
Magnetic bearing load capacity in flexible rotor systems must be adequate to accommodate external loads acting on the rotor. The first part of this paper develops the theoretical basis for computing the bearing load capacity requirements of flexible rotors subject to bounded external harmonic loads and strict motion constraints. The second part of this
E. H. Maslen, P. E. Allaire
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The Analysis of the Lubrication of a Flexible Journal Bearing

Journal of Lubrication Technology, 1975
An analysis is made of the effects of flexibility on the lubrication of a loaded journal bearing. Numerical and graphical results are presented for (a) the pressure distributions in the oil film, (b) the thickness variation of the film, (c) the magnitude and direction of the load applied to the bearing, and (d) the frictional forces in the bearing. The
H. D. Conway, H. C. Lee
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Optimum Gas Journal Bearing with the Flexible Surface

Fluid Dynamics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Chaos of a Flexible Rotor in Journal Bearings

Volume 3B: 15th Biennial Conference on Mechanical Vibration and Noise — Acoustics, Vibrations, and Rotating Machines, 1995
Abstract Nonlinear systems can give rise to chaotic behaviour, essentially unpredictable. Oil film forces arising from hydrodynamic bearings in rotating machinery can be extremely nonlinear under conditions of large unbalance. Chaotic response has been demonstrated in theoretical models of rigid rotors supported in hydrodynamic bearings.
R. D. Brown, G. Drummond
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Nonlinear Dynamic Effect of Thrust Bearing on a Flexible Rotor Bearing System

Volume 7: Structures and Dynamics, Parts A and B, 2012
This article is concerned with the effect of nonlinearities on the stability and bifurcation of a flexible rotor system subjected to the influences of thrust bearing and mass eccentricity. The shaft is modeled by using the finite element method and then the model is reduced by a component mode synthesis method which can account for nonlinear forces and
Heng Liu, Yi Liu, Xuebin Song, Jun Yi, Minqing Jing, Weimin Wang, Shiquan Zhao, Xiaobing Qi   +7 more
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A Virtual Bearing Method for Optimal Bearing Placement of Flexible Rotor Systems

Volume 8: 29th Conference on Mechanical Vibration and Noise, 2017
Flexible multistage rotor systems have a variety of engineering applications. Vibration optimization is important to the improvement of performance and reliability for this type of rotor systems. Filling a technical gap in the literature, this paper presents a virtual bearing method for optimal bearing placement that minimizes the vibration amplitude ...
Shibing Liu, Bingen Yang
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Modeling and control of magnetic flexible rotor bearing system

2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, 2013
The dynamics of a flexible non-uniform rotor supported by two 3-pole active magnetic bearings (AMB) is modeled by integrating generalized polynomial expansion method (GPEM) and eigen mode method. The assumed modes required for the eigen mode method are obtained by GPEM. A stabilizing levitation controller is designed for the system.
Chow Shing Toh, Shyh-Leh Chen
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Magnetic Bearings and Flexible Rotor Dynamics

Tribology Transactions, 1989
The mechanics of an active magnetic bearing (AMB) is explained by presenting a practical AMB control scheme. The scheme comprises three parallel feedback loops to achieve dynamic stiffness, static stiffness and damping. These AMB properties are presented for rotor/bearing designers in closed-form functions of exciting frequency and several ...
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Analysis of Dynamically Loaded Floating Bush Bearing With Flexible Shaft in Flexible Anisotropic Bearing Used in Textile Application

Volume 11: Mechanical Systems and Control, 2008
A FLOATING bush bearing is a kind of bearing which has a thin bush floating freely between journal and fixed bush. In recent years considerable attention has been paid to the “vibration suppressing effect” of floating us bearing. It is reported that floating bush bearing are, if properly designed, effective in suppressing both resonant vibrations at ...
D. C. Patel, D. P. Vakharia
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