نتایج جستجو برای: dimensional vibrations

تعداد نتایج: 413675  

Journal: : 2022

The paper considers a model problem of one-dimensional small transverse vibrations canvas moving at constant speed, which is fixed in hinged manner. oscillatory process described by linear differential equation the 4th order with coefficients. In under consideration, Coriolis force taken into account, leads to appearance term mixed derivative equation. This effect makes it impossible use classi...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
younes yousefi lecturer, engineering department, omidiyeh branch, islamic azad university, khuzestan, iran. hossein vahdanifar msc student, department of engineering shahid chamran university, khuzestan, ahwaz, iran reza shirani msc student, department of engineering shahid chamran university, khuzestan, ahwaz, iran mohamad dehghani phd student, department of mechanical engineering, yazd university , yazd ,iran

in this paper deflection and free vibration of sandwich panel is studied. the core of sandwich panels is made of hexagonal honeycomb and faces are made of two different materials of carbon fiber reinforced plastic and k-aryl/epoxy covering. the governing equations are deduced from the first order sheer deformation theory (fsdt) and they are solved using generalized differential quadrature metho...

Journal: :The Journal of experimental biology 2006
U B Willi G N Bronner P M Narins

The hypertrophied malleus in the middle ear of some golden moles has been assumed to be an adaptation for sensing substrate vibrations by inertial bone conduction, but this has never been conclusively demonstrated. The Cape golden mole (Chrysochloris asiatica) exhibits this anatomical specialization, and the dynamic properties of its middle ear response to vibrations were the subjects of this s...

Journal: :Physical review letters 2016
M Hiraiwa M Abi Ghanem S P Wallen A Khanolkar A A Maznev N Boechler

Contact-based vibrations play an essential role in the dynamics of granular materials. Significant insights into vibrational granular dynamics have previously been obtained with reduced-dimensional systems containing macroscale particles. We study contact-based vibrations of a two-dimensional monolayer of micron-sized spheres on a solid substrate that forms a microscale granular crystal. Measur...

2001
M. Tkach V. Holovatsky O. Makhanets

The ordered arrays of quantum dots have been experimentally created recently. As a result there have been opened the possibility to fabricate and study the physical properties of superlattices consisting of quantum dots with different spatial shapes. The theory of quasiparticles (electron, hole and phonons) in such nanoheterosystems is developed only now [1]. In the proposed paper the influence...

2012
T. Li J. Y. Zhang W. H. Zhang M. H. Zhu

A numerical simulation of vortex-induced vibration of a 2-dimensional elastic circular cylinder with two degree of freedom under the uniform flow is calculated when Reynolds is 200. 2-dimensional incompressible Navier-Stokes equations are solved with the space-time finite element method, the equation of the cylinder motion is solved with the new explicit integral method and the mesh renew is ac...

2013
Christin T. Murphy William C. Eberhardt Benton H. Calhoun Kenneth A. Mann David A. Mann

Two types of vibrissal surface structures, undulated and smooth, exist among pinnipeds. Most Phocidae have vibrissae with undulated surfaces, while Otariidae, Odobenidae, and a few phocid species possess vibrissae with smooth surfaces. Variations in cross-sectional profile and orientation of the vibrissae also exist between pinniped species. These factors may influence the way that the vibrissa...

1994
Imran Yusuf Kurt Slater Kurt Gramoll

This paper presents an overview of an interactive multimedia vibrations program called GT Vibrations. GT Vibrations contains a series of modules that deal with elementary vibrations, transient vibrations, and continuous systems. The program is intended to be used as a supplemental tool for undergraduate courses in vibrations and system dynamics at Georgia Tech. The underlying goal of the progra...

Journal: :Journal of neurophysiology 2014
Louise R Manfredi Hannes P Saal Kyler J Brown Mark C Zielinski John F Dammann Vicky S Polashock Sliman J Bensmaia

Sensory systems are designed to extract behaviorally relevant information from the environment. In seeking to understand a sensory system, it is important to understand the environment within which it operates. In the present study, we seek to characterize the natural scenes of tactile texture perception. During tactile exploration complex high-frequency vibrations are elicited in the fingertip...

Journal: :journal of railway research 0
javad sadeghi iran university of science and technology

one of the most important challenges in the development of urban railways network is the effects of railway vibrations on human and adjacent structures. although various investigations into the sources of railway vibrations have been conducted, very few research works have been reported on the influences of track geometry parameters on the level of vibrations. this is addressed in this research...

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