scholarly journals Nonlinear dynamics of a coupled system with dry-friction

2020 ◽  
Author(s):  
Roberta Lima ◽  
Rubens Sampaio
Keyword(s):  
Nonlinear Dynamics ◽  
Dry Friction ◽  
Coupled System

Modeling and nonlinear dynamics analysis of a rotating beam with dry friction support boundary conditions

2021 ◽  
Vol 498 ◽  
pp. 115978
Author(s):  
Chaofeng Li ◽  
Xiaowen Liu ◽  
Qiansheng Tang ◽  
Zilin Chen
Keyword(s):  
Nonlinear Dynamics ◽  
Boundary Conditions ◽  
Dry Friction ◽  
Dynamics Analysis ◽  
Rotating Beam

The Investigation of the Influence of Structure Parameters on the Friction-Induced Self-Excited Vibration

2011 ◽  
Vol 66-68 ◽  
pp. 933-936
Author(s):  
Xian Jie Meng
Keyword(s):  
Nonlinear Dynamics ◽  
Numerical Method ◽  
Calculation Result ◽  
Dry Friction ◽  
Vibration Amplitude ◽  
The Self ◽  
Structure Parameters ◽  
Dynamics Model ◽  
Excited Vibration ◽  
Nonlinear Dynamics Model

A one degree of freedom nonlinear dynamics model of self-excited vibration induced by dry-friction was built firstly, the numerical method was taken to study the impacts of structure parameters on self-excited vibration. The calculation result shows that the variation of stiffness can change the vibration amplitude and frequency of the self-excited vibration, but can not eliminate it, Along with the increase of system damping the self-excite vibration has the weakened trend and there a ritical damping, when damping is greater than it the self-excite vibration will be disappeared.

Ultrafast nonlinear dynamics in a Frenkel exciton-surface plasmon coupled system

2004 ◽  
Author(s):  
Jung-Hoon Song ◽  
A V. Nurmikko ◽  
J. Tischler ◽  
V. Bulovic
Keyword(s):  
Nonlinear Dynamics ◽  
Surface Plasmon ◽  
Coupled System ◽  
Frenkel Exciton

Self-excited vibration of the shell-liquid coupled system induced by dry friction

1995 ◽  
Vol 11 (4) ◽  
pp. 373-382 ◽  
Author(s):  
Liu Xijun ◽  
Wang Dajun ◽  
Chen Yushu
Keyword(s):  
Dry Friction ◽  
Coupled System ◽  
Excited Vibration

The Investigation of the Influence of Dynamics Parameters on the Friction-Induced Self-Excited Vibration

2011 ◽  
Vol 295-297 ◽  
pp. 2223-2226
Author(s):  
Xian Jie Meng
Keyword(s):  
Nonlinear Dynamics ◽  
Numerical Method ◽  
Calculation Result ◽  
Dry Friction ◽  
Initial Velocity ◽  
Normal Pressure ◽  
The Self ◽  
Dynamics Model ◽  
Excited Vibration ◽  
Nonlinear Dynamics Model

A one degree of freedom nonlinear dynamics model of self-excited vibration induced by dry-friction is built firstly, the numerical method is taken to study the impacts of dynamics parameters on self-excited vibration. The calculation result shows that Along with the variation of system dynamics parameters such as initial velocity or normal pressure the self-excite vibration has the weakened trend or the enhanced trend, so the self-excite vibration could be controled through the control of dynamics parameters.

Nonlinear dynamics of dry friction

1997 ◽  
Vol 30 (17) ◽  
pp. 6057-6063 ◽  
Author(s):  
Franz-Josef Elmer
Keyword(s):  
Nonlinear Dynamics ◽  
Dry Friction

Nonlinear dynamics of mechanical system with external excitation

Open Physics ◽  
2005 ◽  
Vol 3 (1) ◽  
Author(s):  
Bogusław Ryczek
Keyword(s):  
Nonlinear Dynamics ◽  
Computer Simulation ◽  
Mechanical System ◽  
Dry Friction ◽  
Excitation Frequency ◽  
Harmonic Excitation ◽  
Friction Model ◽  
Lumped Mass ◽  
External Excitation ◽  
Transient Motion

AbstractThis paper attends to the problem of vibration of a self-excited mechanical system with a relatively complicated, history dependent dry friction model. The experimentally identified friction model allows description of various cases of stationary and transient motion. The system is composed of a lumped mass that interacts with a belt by means of dry friction. The system is additionally subjected to an external harmonic excitation through elastic element. The main objective of the experimental research has been focused on the analysis of the system behaviour for various values of the excitation frequency. This paper includes also computer simulation of the vibration of the considered system and comparison between the results of experimental and theoretical analysis. The comparison enables the assumed friction model for steel-polyester pair to be verified. It was another goal of the investigations.

Review of Nonlinear Rotor-Bearing Dynamics System

2010 ◽  
Vol 37-38 ◽  
pp. 1130-1137 ◽  
Author(s):  
Xing Cong Wu ◽  
Bin Lin ◽  
Feng Liu ◽  
Xue Song Han
Keyword(s):  
Nonlinear Dynamics ◽  
Optimal Design ◽  
Nonlinear Stability ◽  
Coupled System ◽  
Rotating Machinery ◽  
Oil Film ◽  
Analysis Methods ◽  
Rotor Bearing ◽  
Bearing Dynamics ◽  
Bearing System

This article summarizes the research status of nonlinear rotor-bearing dynamics system in china and abroad, discusses several major problems of nonlinear rotor-bearing dynamics system and refers to a large number of references. The review includes the following three aspects: modeling for the nonlinear oil film force of rotor-bearing system; general analysis methods of nonlinear rotor-bearing system; and numerical analysis methods of nonlinear rotor-bearing system. Furthermore, the problems in current research are pointed out, and the development tendencies are also described: further research on the model of nonlinear oil film force; The dimension reduction methods of high-dimensional nonlinear rotor-bearing dynamics system and optimal design of multi-degree of freedom coupled system; nonlinear parameter identification, modeling and reconstruction methods of rotating machinery; optimal design of nonlinear dynamics for large rotating machinery; Research on the sensitivity analysis of nonlinear vibration and the stability, nonlinear stability margin and nonlinear stability criteria of rotor-bearing-basis coupled system; analysis and research on nonlinear dynamics of rotor-bearing-seal system.

The Research of the Influence of Damping on Automonile Brake Groan

2011 ◽  
Vol 295-297 ◽  
pp. 2231-2234
Author(s):  
Xian Jie Meng ◽  
Jun Wei Li
Keyword(s):  
Nonlinear Dynamics ◽  
Calculation Result ◽  
Dry Friction ◽  
Degrees Of Freedom ◽  
Critical Value ◽  
Damping Coefficient ◽  
Dynamics Model ◽  
Brake Disk ◽  
Excited Vibration ◽  
Nonlinear Dynamics Model

A two degrees of freedom nonlinear dynamics model of self-excited vibration induced by dry-friction of brake disk and pads is built firstly, the numerical method is taken to study the impacts of damping on automobile brake groan. The calculation result shows that the variation of damping coefficient and has different influence on automobile brake groan. and all have A critical value, when damping coefficient greater or less than the critical value the brake disk and pad possess the different vibration state respectively.

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