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

Nonlinear Dynamics Analysis of a Printed Wiring Board With Simple and Clamped Boundary Conditions

2001 ◽  
Author(s):  
Xiaoling He
Keyword(s):  
Nonlinear Dynamics ◽  
Boundary Conditions ◽  
Equations Of Motion ◽  
Nonlinear Resonance ◽  
Failure Criteria ◽  
Dynamics Analysis ◽  
Printed Wiring Board ◽  
Resonance Behavior ◽  
Condition Effect ◽  
Wiring Board

Abstract Dynamic response of a printed wiring board (PWB) is analyzed in nonlinear dynamics approach. Equations of motion for the simply supported PWB and the clamped PWB are obtained by the Galerkin’s method. A 2-layer plastic PWB made of isotropic laminates is studied for its boundary condition effect on the vibratory behavior in deflection and stresses. Failure due to plane stress interaction is estimated based on the composite failure criteria. It is found that nonlinear resonance occurs almost periodically in both frequency and temporal domain. Load frequency and magnitude affect the deflection response under different boundary conditions. Resonance behavior is critical in PWB failure prediction based on the stress analysis. The analytical results can be extended to the nonlinear dynamics analysis of the thin laminated plate.

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.

Prediction of the Unwinding Performance of Optical Fiber Cables by Nonlinear Dynamics Analysis

2010 ◽  
Vol 34 (3) ◽  
pp. 347-352
Author(s):  
Jae-Wook Lee ◽  
Kun-Woo Kim ◽  
Hyung-Ryul Kim ◽  
Wan-Suk Yoo ◽  
Deuk-Man An
Keyword(s):  
Nonlinear Dynamics ◽  
Optical Fiber ◽  
Dynamics Analysis
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