نتایج جستجو برای: nonlinear modal analysis

تعداد نتایج: 3012520  

2005
Li-Qun Chen

In this paper, research on transverse vibrations of axially moving strings and their control is thoroughly reviewed. In the last few decades, there have been extensive studies on analysis and control of transverse vibrations of axially moving strings because of the wide applications of many engineering devices that axially moving strings represent. In the investigations adopting linear models o...

2006
Steven K. Morrison Yuri S. Kivshar

We predict the existence of surface gap modes, known as Tamm states for electronic systems, in truncated photonic crystals formed by two types of dielectric rods. We investigate the energy threshold, dispersion, and modal symmetries of the surface modes, and also demonstrate the existence and tunability of nonlinear Tamm states in binary photonic crystals with nonlinear response.

Journal: :IEEE transactions on image processing 2021

While many approaches exist in the literature to learn low-dimensional representations for data collections multiple modalities, generalizability of multi-modal nonlinear embeddings previously unseen is a rather overlooked subject. In this work, we first present theoretical analysis learning supervised setting. Our performance bounds indicate that successful generalization classification and re...

2001
Gerrit Bloothooft Mieke van Wijck Peter Pabon

1783 modal-falsetto register breaks and 853 falsetto-modal register breaks, produced by seven untrained adult male subjects, were recorded and analyzed with respect to jumps in fundamental frequency and sound pressure level (SPL) using a computer phonetograph. SPL and relative positions of modal and falsetto registers were the most important factors underlying the results. Whereas subor supragl...

Journal: :Journal of engineering for gas turbines and power 2021

Abstract A method is proposed to analyze the modal damping in mistuned bladed-disk with root joints using large finite element models and detailed description of frictional interactions at contact interfaces. The influence mistuning on dissipated energy for different blades a factors vibration levels any family modes can be investigated. due microslip are simulated by multitude surface-to-surfa...

The following study deals with the updating the finite element model of structures using the operational modal analysis. The updating process uses an evolutionary optimization algorithm, namely bees algorithm which applies instinctive behavior of honeybees for finding food sources. To determine the uncertain updated parameters such as geometry and material properties of the structure, local and...

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