Results 231 to 240 of about 70,005 (261)

The dynamics of a viscoelastic rotor in flexible bearings

Archive of Applied Mechanics, 1991
The stability of a symmetric, one-disk rotor model in flexible bearings has been analyzed. The viscoelastic property of the shaft complying with a 3-parameter standard model has been taken into account. The existence of an unstable region has been proved analytically. It exists only in the range of small values of the external damping coefficient.
openaire   +1 more source

A Flexible Rotor on Flexible Bearing Supports: Part II — Unbalance Response

Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 1999
Abstract An experimental study of the effects of bearing support flexibility on rotor unbalance response is presented. A flexible rotor supported by fluid film bearings on flexible supports was used with fifteen support configurations.
José A. Vázquez, Lloyd E. Barrett, Ronald D. Flack   +2 more
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Active Vibration Control of a Flexible Rotor on Flexibly-Mounted Journal Bearings

Journal of Dynamic Systems, Measurement, and Control, 1981
Some recent experimental studies have been concerned with the stabilization of rotating machinery through control action applied at critical points on the rotor. These studies have tended to ignore fundamental constraints on the positioning of active control inputs and measurement transducers.
R. Stanway, C. R. Burrows
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Stability of rotors with unsymmetrical flexible bearings

1969
In classical studies of rotors supported by flexible bearings, isotropy of the bearings is assumed in most cases. F. M. Dimentberg [1], A. Tondl [2], and W. Kellenberger [3] have treated the problem of rotors with anisotropic flexible bearings with the principal axes of flexibility being in parallel.
openaire   +1 more source

Control of Flexible Rotor Vibration with Flexibly Mounted Active Magnetic Bearings

2018
Typical rotor/active magnetic bearing (AMB) system layouts involving large, external stator AMBs may be difficult or inconvenient to apply to some rotor systems. Where space in the machine working envelope is at a premium, the space required by traditional AMBs may preclude them from inclusion in the design.
Lusty, Chris, Bailey, Nicola, Keogh, Patrick S.   +2 more
openaire   +2 more sources

Dynamic modeling and properties analysis for ball bearing driven by structure flexible deformations

Tribology International, 2023
Ke Yan, Yongsheng Zhu, Mingkai Wang
exaly  

Load analysis of thin-walled flexible bearing in harmonic reducer considering assembly with flexspline and cam

Mechanism and Machine Theory, 2023
Chaosheng Song, Caichao Zhu, Xinzi Li
exaly  

Vibration characteristic analysis of flexible rotor-bearing system subjected to external combined loads

European Journal of Mechanics, A/Solids, 2022
Qingshan Wang, Wen Shao
exaly  

Dynamic modeling and simulation of a flexible-rotor ball bearing system

JVC/Journal of Vibration and Control, 2022
Jing Liu
exaly  

Kinematic characteristics and fault feature frequency of flexible thin-wall ellipse bearing

Mechanical Systems and Signal Processing, 2021
Xuezhi Zhao, Bangyan Ye
exaly