Results 211 to 220 of about 70,005 (261)

Dynamics of Rotor/Bearing System With Flexible Rotor and Flexible Bearing Support

Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, 1997
Abstract The paper analyzes, theoretically and experimentally, the lowest four lateral modes of an isotropic rotor/fluid-lubricated bearing system with flexible rotor and flexible bearing support. The parameters of the analytical model of the system are identified using sweep-frequency modal testing of the rotor rig.
Agnes Muszynska, Alex Petchenev, Paul Goldman   +2 more
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Identification of Bearing Coefficients of Flexible Rotor-Bearing Systems

Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 2000
The accuracy of stiffness and damping coefficients of bearings is critical for the rotordynamic analysis of rotating machinery. However, the influence of bearings depends on the design, manufacturing, assembly, and operating conditions of the bearings. Uncertainties occur quite often in manufacturing and assembly, which causes the inaccuracy of bearing
Tachung Yang, Wei-Ching Chaung
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The Vibration of Rotating Shafts Supported in Flexible Bearings

Journal of Mechanical Engineering Science, 1959
This paper deals with an axially symmetric system composed of a uniform or non-uniform flexible shaft rotating in flexible bearings. It is shown how natural frequencies and characteristic functions may be found, using data that have been presented previously.
Gladwell, G. M. L., Bishop, R. E. D.
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A New Flexible Bearing

Aircraft Engineering and Aerospace Technology, 1944
THE bearing described in this article may help to solve many problems peculiar to aircraft design, where deflections of large orders are experienced between one location and another.
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Elastohydrodynamic analysis of a cylindrical journal bearing with a flexible bearing shell

Wear, 1982
Abstract The effect of the elastic deformation of a bearing shell was considered in the determination of the performance characteristics of a hydrodynamic journal bearing. The finite element method with an iteration scheme was employed to solve the Reynolds equation governing flow in the clearance space and the three-dimensional linear elasticity ...
S.C. Jain, R. Sinhasan, D.V. Singh
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A Flexible Rotor on Flexible Bearing Supports: Part I — Stability

Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1999
Abstract An experimental study of the effects of bearing support flexibility on rotor stability is presented. A flexible roto supported by fluid film bearings on flexible supports was used with fifteen support configurations. The horizontal suppor stiffness was varied systematically while the vertical stiffness was kept constant.
José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack   +2 more
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Flexible Stepped Thrust Bearings

A S L E Transactions, 1973
A means is suggested by which a stepped thrust bearing can be adapted so that it operates at or near its optimum operating condition over a wide range of applied load. It is shown theoretically that when the outlet step is mounted on an elastic foundation of the correct stiffness, the changes in step height with load enable the bearing to operate with ...
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A Flexible Rotor on Flexible Bearing Supports: Stability and Unbalance Response

Journal of Vibration and Acoustics, 2000
An experimental study of the effects of bearing support flexibility on rotor stability and unbalance response is presented. A flexible rotor supported by fluid film bearings on flexible supports was used with fifteen support configurations. The horizontal support stiffness was varied systematically while the vertical stiffness was kept constant.
Jose´ A. Va´zquez, Lloyd E. Barrett, Ronald D. Flack   +2 more
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Bearing Dynamic Coefficients of Flexible-Pad Journal Bearings

Tribology Transactions, 1995
The application of flexible-pad journal bearings for high-speed rotating machinery has recently gained attention from equipment manufacturers for its simplicity of one-piece design which can eliminate the manufacturing tolerance stack-up and possible lower functional power loss.
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Balancing of Flexible Shafts Rotating in Massive Flexible Bearings

Journal of Mechanical Engineering Science, 1973
A process of modal balancing has been developed in recent years for rotors whose modal deflection shapes ψ1( x), ψ2( x), …, are orthogonal. If a shaft is rotating in massive flexible bearings, these shapes are not orthogonal, so that the correctness of modal balancing for such rotors requires investigation.
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