Finite element reduced order models for nonlinear vibrations of piezoelectric layered beams with applications to NEMS [PDF]
, 2012 This article presents a finite element reduced order model for the nonlinear vibrations of piezoelectric layered beams with application to NEMS. In this model, the geometrical nonlinearities are taken into account through a von Kármán nonlinear strain ...
O. Thomas +5 more
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Time-Frequency Analysis of Systems with Changing Dynamic Properties [PDF]
, 2006 The Wigner-Ville Distribution, and related refinements, represent a class of advanced time-frequency analysis tools that are distinguished from Fourier and wavelet methods by an increase in resolution in the time frequency plane. Time-frequency analysis
Bradford, Samuel Case, V +1 more
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Frequency domain iterative feedforward/feedback tuning for MIMO ANVC
, 2010 A new gradient estimation method is proposed that relies on efficient computation of the negative gradient of the average linear quadratic cost function completely in the frequency domain.
Veres, Sandor M. +3 more
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On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]
, 2010 In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
J. Morlier +4 more
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A generalized frequency detuning method for multidegree-of-freedom oscillators with nonlinear stiffness [PDF]
, 2013 In this paper, we derive a frequency detuning method for multi-degree-of-freedom oscillators with nonlinear stiffness. This approach includes a matrix of detuning parameters, which are used to model the amplitude dependent variation in resonant ...
Neild, S.A +3 more
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Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]
, 2012 The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
core
Remembering 'zeal' but not 'thing':reverse frequency effects as a consequence of deregulated semantic processing [PDF]
, 2011 More efficient processing of high frequency (HF) words is a ubiquitous finding in healthy individuals, yet frequency effects are often small or absent in stroke aphasia.
Paul Hoffman +7 more
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Frequency domain iterative tuning for active noise and vibration control [PDF]
, 2008 In this thesis a new adaptive control method, called Iterative Tuning in the Frequency Domain (FD-IT), is proposed for Active Noise and Vibration Control (ANVC).
Luo, Jian
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Aeroelastic dynamic response and control of an airfoil section with control surface nonlinearities [PDF]
, 2010 Nonlinearities in aircraft mechanisms are inevitable, especially in the control system. It is necessary to investigate the effects of them on the dynamic response and control performance of aeroelastic system.
Shijun Guo +5 more
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Identifying interactions in the time and frequency domains in local and global networks : a Granger causality approach [PDF]
, 2010 Background Reverse-engineering approaches such as Bayesian network inference, ordinary differential equations (ODEs) and information theory are widely applied to deriving causal relationships among different elements such as genes, proteins, metabolites,
Ladroue, Christophe +11 more
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