Results 251 to 260 of about 25,962,359 (295)

Complex Eigenvalue Analysis of Railway Curve Squeal

2008
A finite element complex eigenvalue analysis of curve squeal is carried out. Two models for the wheel tread/rail top contact and the wheel flange root/rail gauge corner contact are established. In the both models, the contact between the wheel and rail is simulated with a spring.
G. X. Chen, J. B. Xiao, Q. Y. Liu, Z. R. Zhou   +3 more
openaire   +1 more source

Complex eigenvalue analysis and dynamic transient analysis in predicting disc brake squeal

International Journal of Vehicle Noise and Vibration, 2006
There are typically two different methodologies that can be used to predict squeal in a disc brake, i.e., complex eigenvalue analysis and dynamic transient analysis. The positive real parts of complex eigenvalues indicate the degree of instability of the disc brake and are thought to associate with squeal occurrence or noise intensity.
Huajiang Ouyang
exaly   +2 more sources

Implications of complex eigenvalues in homogeneous flow: A three-dimensional kinematic analysis

Journal of Structural Geology, 2010
Abstract We present an investigation of the kinematic properties of 3D homogeneous flow defined by complex eigenvalues. We demonstrate, using simple algebraic analysis, that the clear threshold between pulsating and non-pulsating fields, fixed for Wn > 1 and valid for planar flow, is not easily defined in a 3D flow system.
IACOPINI D., CAROSI, Rodolfo, XYPOLIAS P.   +2 more
openaire   +4 more sources

Real modal analysis with complex conjugate eigenvalues

International Journal of Systems Science, 1988
Abstract The synthesis of a real eigenvector matrix for real systems with complex conjugate eigenvalues provides a real (cc-block) diagonal canonical form for real modal analysis.
openaire   +1 more source

Perturbation Methods for Bifurcation Analysis from Multiple Nonresonant Complex Eigenvalues

Nonlinear Dynamics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
LUONGO, Angelo, Paolone A.
openaire   +3 more sources

Brake Squeal: Complex Eigenvalue versus Dynamic Transient Analysis

SAE Technical Paper Series, 2007
<div class="htmlview paragraph">Brake squeal from either disc brakes or drum brakes has been one of the major concerns in the automotive industry due to the persistent complaint that reduces customers' satisfaction with their vehicle. In order to understand, predict and prevent brake squeal, experimental and numerical approaches have been used ...
A. R. AbuBakar, A. Sharif, M. Z. A. Rashid, H. Ouyang   +3 more
openaire   +1 more source

Eigenvalue Based Stability Analysis for Asymmetric Complex Dynamical Networks

2009
The problem of stabilization in complex networks with asymmetric couplings forced by pinning control is studied. By using eigenvalue analysis, controllable regions for different types of coupling links are obtained. Some relevant factors on controllability such as pinning fraction and pinning strength are also investigated.
Zengqiang Chen 0001, LinYing Xiang, Zhongxin Liu 0001, Zhuzhi Yuan, Kai Chang   +4 more
openaire   +2 more sources

Convergence Analysis of the Parareal-Euler Algorithm for Systems of ODEs with Complex Eigenvalues

Journal of Scientific Computing, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Complex eigenvalues in stability analysis of nonlinear planar guided waves

Optics Communications, 1992
Abstract The stability characteristics of the anti-symmetric TE 1 stationary wave in symmetric nonlinear planar waveguides (SNPW) is investigated both analytically and numerically. It is shown, for the first time, that eigenvalues of the corresponding linear stability analysis can be complex in a certain range of parameters.
H.T. Tran, J.D. Mitchell, N.N. Akhmediev, A. Ankiewicz   +3 more
openaire   +1 more source

Complex Eigenvalue Analysis Applied to an Aircraft Brake Vibration Problem

Volume 3A: 15th Biennial Conference on Mechanical Vibration and Noise — Vibration of Nonlinear, Random, and Time-Varying Systems, 1995
Abstract A conventional finite element model of an aircraft wheel and brake is extended to include forces responsible for friction-induced noise. Responses of aircraft brake vibration modes change the normal force across the brake friction interfaces, and consequently the friction forces.
Denis J. Feld, Dana J. Fehr
openaire   +1 more source