scholarly journals Analytical study of the dynamic behavior of geometrically nonlinear shaft-disk rotor systems

2011 ◽  
Vol 12 (6) ◽  
pp. 433-443
Author(s):  
Muhammad Rizwan Shad ◽  
Guilhem Michon ◽  
Alain Berlioz
Keyword(s):  
Dynamic Behavior ◽  
Analytical Study ◽  
Geometrically Nonlinear ◽  
Rotor Systems

scholarly journals Dynamic Behavior of Geared Rotors

1997 ◽  
Author(s):  
T. N. Shiau ◽  
J. S. Rao ◽  
J. R. Chang ◽  
Siu-Tong Choi
Keyword(s):  
Dynamic Behavior ◽  
Chaotic Behavior ◽  
Squeeze Film ◽  
Rotor Systems ◽  
Lateral Vibrations ◽  
Squeeze Film Dampers ◽  
Torsional Excitation ◽  
Route To Chaos

This paper is concerned with the dynamic behavior of geared rotor systems supported by squeeze film dampers, wherein coupled bending torsion vibrations occur. Considering the imbalance forces and gravity, it is shown that geared rotors exhibit chaotic behavior due to non linearity of damper forces. The route to chaos in such systems is established. In geared rotor systems, it is shown that torsional excitation can induce lateral vibrations. It is shown that squeeze film dampers can suppress large amplitudes of whirl arising out of torsional excitation.

Experimental and Analytical Study of Dynamic Behavior of a Bridge

1997 ◽  
Vol 123 (11) ◽  
pp. 1506-1511 ◽  
Author(s):  
Giovanni C. Beolchini ◽  
Fabrizio Vestroni
Keyword(s):  
Dynamic Behavior ◽  
Analytical Study

Dynamic Behavior and Stability of a Rotor Under Base Excitation

2006 ◽  
Vol 128 (5) ◽  
pp. 576-585 ◽  
Author(s):  
M. Duchemin ◽  
A. Berlioz ◽  
G. Ferraris
Keyword(s):  
Dynamic Behavior ◽  
Multiple Scales ◽  
Equations Of Motion ◽  
Ritz Method ◽  
Base Excitation ◽  
Flexible Rotor ◽  
Lagrange Equations ◽  
Rotor Systems ◽  
Simple Systems ◽  
Flexible Rotor Systems

The dynamic behavior of flexible rotor systems subjected to base excitation (support movements) is investigated theoretically and experimentally. The study focuses on behavior in bending near the critical speeds of rotation. A mathematical model is developed to calculate the kinetic energy and the strain energy. The equations of motion are derived using Lagrange equations and the Rayleigh-Ritz method is used to study the basic phenomena on simple systems. Also, the method of multiple scales is applied to study stability when the system mounting is subjected to a sinusoidal rotation. An experimental setup is used to validate the presented results.

scholarly journals An analytical study of the dynamic behavior of Lotka-Volterra based models of COVID-19

2021 ◽  
Vol 26 ◽  
pp. 104432
Author(s):  
Wael W. Mohammed ◽  
E.S. Aly ◽  
A.E. Matouk ◽  
S. Albosaily ◽  
E.M. Elabbasy
Keyword(s):  
Dynamic Behavior ◽  
Analytical Study
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