Results 61 to 70 of about 176,684 (202)

Prediction of Transonic LCOs using an Aeroelastic Harmonic Balance Method [PDF]

open access: yes, 2014
This work proposes a novel approach to compute transonic limit-cycle oscillations using high-fidelity analysis. Computational-Fluid-Dynamics based harmonic balance methods have proven to be efficient tools to predict periodic phenomena.
Noll T. E., Silva W., Thomas J.
core   +1 more source

Analytic Solution for Nonlinear Multimode Beam Vibration Using a Modified Harmonic Balance Approach and Vieta’s Substitution

open access: yesShock and Vibration, 2016
This paper presents a modified harmonic balance solution method incorporated with Vieta’s substitution technique for nonlinear multimode damped beam vibration. The aim of the modification in the solution procedures is to develop the analytic formulations,
Y. Y. Lee
doaj   +1 more source

Refined Analytical Approximations to Limit Cycles for Non-Linear Multi-Degree-of-Freedom Systems [PDF]

open access: yes, 2019
This paper presents analytical higher order approximations to limit cycles of an autonomous multi-degree-of-freedom system based on an integro-differential equation method for obtaining periodic solutions to nonlinear differential equations.
Lewis, Andrew
core   +2 more sources

Harmonic balance method for solving a large-amplitude oscillation of a conservative system with inertia and static non-linearity

open access: yesResults in Physics, 2016
In this paper, an analytical approximate technique based on harmonic balance method (HBM) is presented to obtain the approximate frequencies and the corresponding periodic solutions of a conservative oscillator having inertia and static non-linearity ...
Md. Helal Uddin Molla   +2 more
doaj   +1 more source

Determination of Approximate Periods of Duffing-harmonic Oscillator

open access: yesWalailak Journal of Science and Technology, 2014
We introduced an analytical technique based on harmonic balance method (HBM) to determine approximate periods of a nonlinear Duffing-harmonic oscillator. Generally, a set of nonlinear algebraic equations are appeared when HBM is formulated.
Md. Alal HOSEN
doaj   +1 more source

К активному гашению колебаний упругих систем [PDF]

open access: yes, 2006
Method of the active damping of beam oscillations is proposed in this work. Essentially nonlinear absorber with the feedback is attached to the beam. Method of the harmonic balance is used to investigate the system with the active absorber.
Аврамов, К. В.   +1 more
core  

Validation of Friction Model Parameters Identified Using the IHB Method Using Finite Element Method

open access: yesShock and Vibration, 2019
A hybrid friction model was recently developed by Azizian and Mureithi (2013) to simulate the friction behavior of tube-support interaction. However, identification and validation of the model parameters remains unresolved. In previous work, the friction
Abdallah Hadji, Njuki Mureithi
doaj   +1 more source

Comments on the method of harmonic balance [PDF]

open access: yesJournal of Sound and Vibration, 1984
Scientists and engineers are often confronted with a non-linear ordinary differential equation for which physical considerations suggest that one or more types of oscillatory motions are possible. In general, except under very special conditions, exact solutions in closed form do not exist.
openaire   +1 more source

Parallel Harmonic Balance Method Towards very large scale systems

open access: yes, 2022
This paper presents a parallel implementation of harmonic balance method coupled with continuation method. The different elements for a parallel implementation are introduced. The obtained software permits to accurately solve problem that has never been studied in this manner before.
Salles, Loïc   +3 more
openaire   +2 more sources

On the development of a harmonic balance method for aeroelastic analysis [PDF]

open access: yes, 2014
To efficiently simulate time-periodic, non-linear flows in turbomachinery a Harmonic Balance (HB) method has recently been developed within the framework of DLR’s compressible, Unsteady Reynolds Averaged Navier- tokes (URANS) solver TRACE.
Ashcroft, Graham   +2 more
core  

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