scholarly journals Harmonic field calculation by the combination of finite element analysis and harmonic balance method

1988 ◽  
Vol 24 (6) ◽  
pp. 2588-2590 ◽  
Author(s):  
S. Yamada ◽  
K. Bessho
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Harmonic Balance ◽  
Harmonic Balance Method ◽  
Balance Method ◽  
Field Calculation ◽  
Element Analysis ◽  
Harmonic Field

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

2019 ◽  
Vol 2019 ◽  
pp. 1-19
Author(s):  
Abdallah Hadji ◽  
Njuki Mureithi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Friction Force ◽  
Harmonic Balance ◽  
Harmonic Balance Method ◽  
Friction Model ◽  
Balance Method ◽  
Model Parameters ◽  
Friction Models ◽  
Element Method

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 model parameters were identified using the reverse harmonic method, where the following quantities were indirectly obtained by measuring the vibration response of a beam: friction force, sliding speed of the force of impact, and local displacement at the contact point. In the present work, the numerical simulation by the finite element method (FEM) of a beam clamped at one end and simply supported with the consideration of friction effect at the other is conducted. This beam is used to validate the inverse harmonic balance method and the parameters of the friction models identified previously. Two static friction models (the Coulomb model and Stribeck model) are tested. The two models produce friction forces of the correct order of magnitude compared to the friction force calculated using the inverse harmonic balance method. However, the models cannot accurately reproduce the beam response; the Stribeck friction model is shown to give the response closest to experiments. The results demonstrate some of the challenges associated with accurate friction model parameter identification using the inverse harmonic balance method. The present work is an intermediate step toward identification of the hybrid friction model parameters and, longer-term, improved analysis of tube-support dynamic behavior under the influence of friction.

Superelement Reduction of Industrial Finite Element Brake System for a Constrained Harmonic Balance Method

2012 ◽  
Author(s):  
Paul Villard ◽  
Samuel Nacivet ◽  
Jean-Jacques Sinou
Keyword(s):  
Finite Element ◽  
Harmonic Balance ◽  
Harmonic Balance Method ◽  
Experimental Tests ◽  
Balance Method ◽  
Brake System ◽  
Complex Eigenvalue ◽  
Brake Squeal ◽  
Element System ◽  
Complex Eigenvalue Analysis

Brake squeal is a ubiquitous disturbance in automotive systems. Facing the complexity and the cost of experimental tests, simulations of brake squeal have become essential as well as to provide a predictive numerical method. Two major approaches exist in the numerical analysis of this phenomenon, the transient analysis and the complex eigenvalue analysis. In this study, the Constrained Harmonic Balance Method is applied on an industrial finite element system in order to estimate the nonlinear stationary responses due to friction induced vibration. This paper aims at explaining how a finite element system was adapted to the CHBM and at analyzing the results. First of all, the method used to reduce a finite element brake system is examined and the contact issue is particularly emphasized. Then, a brief summary of the CHBM is made. Finally, limit cycles are obtained close to the Hopf bifurcation.

Temperature Field Calculation of Mass Concrete Anchor

2012 ◽  
Vol 166-169 ◽  
pp. 1141-1144
Author(s):  
Hai Tao Wan ◽  
Li Min Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Suspension Bridge ◽  
Field Calculation ◽  
Analysis Model ◽  
Element Analysis ◽  
Finite Element Analysis Model ◽  
Finite Element Software

Gravity anchor is one of essential forced components of steady suspension bridge. The paper takes the example of the finite element numerical simulation of steady suspension bridge gravity anchor, main contents include: First, performance parameters of concrete and hydration heat of cement is collected, the one-fourth block of anchor model is established by large-scale general finite element software ANSYS. The process of establishing finite element analysis model includes the input of the model parameters, the boundary conditions set of finite element model, and the mesh of finite element analysis model. Then, the numerical simulation computation to temperature field of gravity anchor is carried by finite element software ANSYS. Finally, from the temperature field distribution curves, studying the temperature distribution rule of concrete pouring and drawing some conclusions.

scholarly journals Validation of Finite Element Solutions of Nonlinear, Periodic Eddy Current Problems

2014 ◽  
Vol 63 (4) ◽  
pp. 591-600
Author(s):  
René Plasser ◽  
Oszkár Bíró
Keyword(s):  
Finite Element ◽  
Eddy Current ◽  
Harmonic Balance ◽  
Eddy Currents ◽  
Harmonic Balance Method ◽  
Steady State Solution ◽  
Periodic Excitation ◽  
The Finite Element Method ◽  
Element Analysis ◽  
3 Dimensional

Abstract An industrial application is presented to validate a finite element analysis of 3-dimensional, nonlinear eddy-current problems with periodic excitation. The harmonic- balance method and the fixed-point technique are applied to get the steady state solution using the finite element method. The losses occurring in steel reinforcements underneath a reactor due to induced eddy-currents are computed and compared to measurements.

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