Stability Analysis of Rotating Shaft System with Many Bearings and Disks

1977 ◽  
Vol 43 (368) ◽  
pp. 1338-1347 ◽  
Author(s):  
Katsuaki KIKUCHI ◽  
Satomi KOBAYASHI
Keyword(s):  
Stability Analysis ◽  
Rotating Shaft ◽  
Shaft System

scholarly journals Stability Analysis of a Rotating Shaft System with Many Bearings and Disks

1977 ◽  
Vol 20 (150) ◽  
pp. 1592-1600 ◽  
Author(s):  
Katsuaki KIKUCHI ◽  
Satomi KOBAYASHI
Keyword(s):  
Stability Analysis ◽  
Rotating Shaft ◽  
Shaft System

Analysis of the rub-impact forces between a controlled nonlinear rotating shaft system and the electromagnet pole legs

2021 ◽  
Vol 93 ◽  
pp. 792-810
Author(s):  
N.A. Saeed ◽  
Emad Mahrous Awwad ◽  
Mohammed A. EL-meligy ◽  
Emad Abouel Nasr
Keyword(s):  
Rotating Shaft ◽  
Shaft System ◽  
Impact Forces

Improvements in Lightly Loaded Rotor/Bearing and Rotor/Seal Models

1988 ◽  
Vol 110 (2) ◽  
pp. 129-136 ◽  
Author(s):  
A. Muszynska
Keyword(s):  
Stability Analysis ◽  
Fluid Dynamic ◽  
Velocity Ratio ◽  
Nonlinear Function ◽  
Circumferential Velocity ◽  
Rotating Shaft ◽  
Model Adequacy ◽  
Dynamic Forces ◽  
Key Factor ◽  
Lateral Mode

A model for lightly loaded steadily rotating shaft/bearing/seal systems is proposed in this paper. The model is based on modal characteristics for the rotor, and rotational characteristics for the fluid dynamic forces generated in bearings and/or seals. The fluid average circumferential velocity ratio as a nonlinear function of shaft eccentricity represents a key factor in the model. The model is extremely useful for rotor stability analysis. The model adequacy was proved for one and two lateral mode models of rotors.

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