Dynamics resonance of a nonlinear mechanical oscillator subjected to parametric external excitation

2000 ◽  
Author(s):  
M Eissa
Keyword(s):  
Mechanical Oscillator ◽  
External Excitation ◽  
Nonlinear Mechanical

scholarly journals Экспериментальное и теоретическое исследование осциллятора с соударениями

2020 ◽  
Vol 90 (10) ◽  
pp. 1672
Author(s):  
В.В. Нарожнов
Keyword(s):  
Theoretical Model ◽  
Equations Of Motion ◽  
Spectral Characteristics ◽  
Contact Theory ◽  
Hertz Contact ◽  
Mechanical Oscillator ◽  
Impact Oscillator ◽  
Fourier Filtering ◽  
Nonlinear Mechanical ◽  
The Impact

The results of a study of a nonlinear mechanical oscillator with elastic impacts are presented. The experiment was carried out using an electromechanical impact oscillator. The theoretical model is based on the equations of motion, taking into account the elastic force, which is calculated under the Hertz contact theory. It is shown that bifurcations and attractors of the “stable focus” and “limit cycle” types can occur for the impact oscillator. Fourier filtering was used to analyze the spectral characteristics of the signals.

Efficient Nonlinear Energy Harvesting with Wrinkled Piezoelectric Membranes

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Igor Neri ◽  
Miquel López-Suárez
Keyword(s):  
Power Density ◽  
Mechanical Response ◽  
Excitation Amplitude ◽  
Electric Response ◽  
Noise Power ◽  
External Excitation ◽  
Piezoelectric Energy ◽  
Nonlinear Mechanical ◽  
Nonlinear Regimes ◽  
Nonlinear Energy

AbstractWe investigate the performance of a piezoelectric energy harvester with nonlinearity induced by wrinkles. Linear and nonlinear regimes are detected in the electric response of the device when sweeping the intensity of the external excitation. Those regimes are related to the activation of a nonlinear mechanical response that appears when increasing the excitation amplitude. The wrinkles have been found to improve the power density and the normalized power density, in a certain noise power range.

A nonlinear mechanical oscillator for physics laboratories

1996 ◽  
Vol 64 (5) ◽  
pp. 575-580 ◽  
Author(s):  
R. Dorner ◽  
L. Kowalski ◽  
M. Stein
Keyword(s):  
Mechanical Oscillator ◽  
Nonlinear Mechanical ◽  
Physics Laboratories

scholarly journals Single-ion nonlinear mechanical oscillator

2010 ◽  
Vol 82 (6) ◽  
Author(s):  
N. Akerman ◽  
S. Kotler ◽  
Y. Glickman ◽  
Y. Dallal ◽  
A. Keselman ◽  
...  
Keyword(s):  
Mechanical Oscillator ◽  
Nonlinear Mechanical

Demonstration of motion transduction in a single-ion nonlinear mechanical oscillator

2014 ◽  
Vol 89 (6) ◽  
Author(s):  
W. Wan ◽  
H. Y. Wu ◽  
L. Chen ◽  
F. Zhou ◽  
S. J. Gong ◽  
...  
Keyword(s):  
Mechanical Oscillator ◽  
Nonlinear Mechanical

Application of the Finite Element Method in Screening of Body Turn up Heights for Radial Truck Tires

2001 ◽  
Vol 29 (3) ◽  
pp. 186-196 ◽  
Author(s):  
X. Yan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Model ◽  
The Finite Element Method ◽  
Truck Tires ◽  
Contact Constraint ◽  
Nonlinear Mechanical ◽  
Critical Regions ◽  
Constraint Method ◽  
Element Method

Abstract A method is described to predict relative body turn up endurance of radial truck tires using the finite element method. The elastomers in the tire were simulated by incompressible elements for which the nonlinear mechanical properties were described by the Mooney-Rivlin model. The belt, carcass, and bead were modeled by an equivalent orthotropic material model. The contact constraint of a radial tire structure with a flat foundation and rigid rim was treated using the variable constraint method. Three groups of tires with different body turn up heights under inflation and static footprint loading were analyzed by using the finite element method. Based on the detail analysis for stress analysis parameters in the critical regions in the tires, the relative body turn up edge endurance was predicted.

Sign in / Sign up

Export Citation Format

Share Document