Lateral Vibrations and Stability of Viscoelastic Rods

2014 ◽  
pp. 123-184
Author(s):  
Teodor M. Atanacković ◽  
Stevan Pilipović ◽  
Bogoljub Stanković ◽  
Dušan Zorica
Keyword(s):  
Lateral Vibrations

LATERAL VIBRATIONS OF BEAMS ON AN ELASTIC BASE AT CHANGING THE SUPPORTING CONDITIONS

2020 ◽  
Vol 91 (5) ◽  
pp. 70-76
Author(s):  
E.V. LEONTIEV ◽  
◽  
Keyword(s):  
Dynamic Behavior ◽  
Elastic Foundation ◽  
Dynamic Problem ◽  
Static Problem ◽  
Elastic Base ◽  
Design Model ◽  
Lateral Vibrations ◽  
Internal Forces ◽  
Vibration Loads ◽  
The Right

The paper considers the system "beam - elastic foundation", in which a beam with free edges was at first on a solid elastic foundation, but when a defect suddenly forms in the foundation under the right side of the beam, part of foundation was removed from design model. As a result of calculations performed by the method of initial parameters, the displacements and internal forces for the static problem are determined. The dynamic problem of determining the forces and displacements was solved, taking into account the three vibration loads F (t) = F sinγt applied at arbitrary points d when the conditions for supporting the right side of the beam on an elastic foundation were changed, the values of the dynamics coefficients were determined. Conditions are formulated that must be taken into account when analyzing the dynamic behavior of a structure under the influence of vibration loads in the case of a change in the conditions of bearing on an elastic foundation.

Damping lateral vibrations in rotary machinery using motor speed modulation

2010 ◽  
Vol 329 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Nikolai N. Verichev ◽  
Stanislav N. Verichev ◽  
Vladimir I. Erofeyev
Keyword(s):  
Motor Speed ◽  
Lateral Vibrations ◽  
Speed Modulation ◽  
Rotary Machinery

Damped lateral vibrations of straight and curved cables with no axial pre-load

2007 ◽  
Vol 300 (3-5) ◽  
pp. 676-694 ◽  
Author(s):  
Miha Otrin ◽  
Miha Boltežar
Keyword(s):  
Lateral Vibrations

Current-induced scour at monopile foundations subjected to lateral vibrations

2019 ◽  
Vol 144 ◽  
pp. 15-21 ◽  
Author(s):  
Dawei Guan ◽  
Yee-Meng Chiew ◽  
Bruce W. Melville ◽  
Jinhai Zheng
Keyword(s):  
Lateral Vibrations

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.

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