Results 81 to 90 of about 176,684 (202)

Harmonic analysis of oscillators through standard numerical continuation tools

, 2010
In this paper, we describe a numerical continuation method that enables harmonic analysis of nonlinear periodic oscillators. This method is formulated as a boundary value problem that can be readily implemented by resorting to a standard continuation ...
Bizzarri, Federico, Linaro, Daniele, Oldeman, Bart, Storace, Marco   +3 more
core   +1 more source

A simple modified harmonic balance method for strongly nonlinear oscillator with cubic non-linearity and harmonic restoring force

Journal of Low Frequency Noise, Vibration and Active Control
In this article, a very simple modified form of the harmonic balance method is used to solve a strongly nonlinear oscillator with cubic nonlinearity and harmonic restoring force.
Nazmul Sharif, Helal Uddin Molla, Abdul Alim   +2 more
doaj   +1 more source

Periodic Solutions of the Duffing Harmonic Oscillator by He's Energy Balance Method

Journal of Applied and Computational Mechanics, 2015
Duffing harmonic oscillator is a common model for nonlinear phenomena in science and engineering. This paper presents He´s Energy Balance Method (EBM) for solving nonlinear differential equations. Two strong nonlinear cases have been studied analytically.
A. M. El-Naggar, Gamal Ismail
doaj   +1 more source

Nonlinear normal modes of a two degree of freedom oscillator with a bilateral elastic stop [PDF]

, 2012
A study of the non linear modes of a two degree of freedom mechanical system with bilateral elastic stop is considered. The issue related to the non-smoothness of the impact force is handled through a regularization technique.
Bellizzi, Sergio, Cochelin, Bruno, Moussi, El Hadi, Nistor, I.   +3 more
core   +2 more sources

MSHE-PWM harmonic suppression method of mine hoist active front end

Gong-kuang zidonghua, 2015
In view of problem of harmonic pollution and system loss of active front end of 10 kV high voltage mine hoist, MSHE-PWM harmonic suppression method was proposed.
WAN Jun, WANG Yu, WEN Xiaofei
doaj   +1 more source

Simulation of Payne Effect of Elastomeric Isolators with a Harmonic Balance Method

Shock and Vibration, 2012
In the presented work, a non linear effect of rubber referred as Fletcher-Gent effect or Payne effect is investigated. It leads to a change in the rubber dynamic modulus with vibration amplitudes and, consequently, modifies resonance frequencies of ...
V. Jaumouillé, J.-J. Sinou, B. Petitjean   +2 more
doaj   +1 more source

A global low order spectral model designed for climate sensitivity studies [PDF]

, 1984
A two level, global, spectral model using pressure as a vertical coordinate is developed. The system of equations describing the model is nonlinear and quasi-geostrophic.
Hanna, A. F., Stevens, D. E.
core   +1 more source

Global residue harmonic balance method for Helmholtz–Duffing oscillator

Applied Mathematical Modelling, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Weight Effects on Vertical Transverse Vibration of a Beam with a Nonlinear Energy Sink

Applied Sciences
Reductions in the vibration of a continuum system via a nonlinear energy sink have been widely investigated. It is usually assumed that weight effects can be ignored if the vibration is measured from the static equilibrium configuration.
Xiang Fu, Sha Wei, Hu Ding, Li-Qun Chen
doaj   +1 more source

Fan Flutter Computations Using the Harmonic Balance Method [PDF]

An experimental forward-swept fan encountered flutter at part-speed conditions during wind tunnel testing. A new propulsion aeroelasticity code, based on a computational fluid dynamics (CFD) approach, was used to model the aeroelastic behavior of this ...
Bakhle, Milind A., Reddy, T.S.R., Thomas, Jeffrey P.   +2 more
core   +1 more source