نتایج جستجو برای: train induced vibrations

تعداد نتایج: 1034399  

Journal: :Railway Engineering Science 2022

Abstract In recent years, high-speed railways in China have developed very rapidly, and the number span of railway bridges are keeping increasing. Meanwhile, frequent extreme disasters, such as strong winds, earthquakes floods, pose a significant threat to safety train–bridge systems. Therefore, it is paramount importance evaluate comfort trains when crossing bridge under external excitations. ...

2013
Hee Seok Kim

The development of the tilting train can contribute to solve the economic burden and enhance the transportation means of areas that did not share the benefits of the high speed railway. But the dynamic behavior caused by the interaction between the train and the track as well as the environmental vibrations along the railway should be evaluated to secure the safety of the train and riding comfo...

2014
G. Kouroussis D. P. Connolly O. Verlinden

Railway-induced ground vibrations – a review of vehicle effects G. Kouroussis, D.P. Connolly & O. Verlinden To cite this article: G. Kouroussis, D.P. Connolly & O. Verlinden (2014) Railway-induced ground vibrations – a review of vehicle effects, International Journal of Rail Transportation, 2:2, 69-110, DOI: 10.1080/23248378.2014.897791 To link to this article: https://doi.org/10.1080/23248378....

Journal: :IMA J. Math. Control & Information 2011
Xiaowei Zhao George Weiss

We investigate the suppression of the vibrations of a wind turbine tower using colocated feedback to achieve strong stability. We decompose the system into one model describing the vibrations in the plane of the turbine axis and another model in the plane of the turbine blades. In the plane of the turbine axis, we obtain a non-uniform Spacecraft Control Laboratory Experiment (SCOLE) model with ...

2014
Gunes Uzer Suphannee Pongkitwitoon Cheng Ian William R. Thompson Janet Rubin Meilin E. Chan Stefan Judex

The physical mechanism by which cells sense high-frequency mechanical signals of small magnitude is unknown. During exposure to vibrations, cell populations within a bone are subjected not only to acceleratory motions but also to fluid shear as a result of fluid-cell interactions. We explored displacements of the cell nucleus during exposure to vibrations with a finite element (FE) model and te...

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 resea...

Journal: :The Journal of experimental biology 2012
Christian Bech Christensen Jakob Christensen-Dalsgaard Christian Brandt Peter Teglberg Madsen

Snakes lack both an outer ear and a tympanic middle ear, which in most tetrapods provide impedance matching between the air and inner ear fluids and hence improve pressure hearing in air. Snakes would therefore be expected to have very poor pressure hearing and generally be insensitive to airborne sound, whereas the connection of the middle ear bone to the jaw bones in snakes should confer acut...

2016
Athanasia Moungou Jean-Louis Thonnard André Mouraux

When sliding our fingertip against a textured surface, complex vibrations are produced in the skin. It is increasingly recognised that the neural transduction and processing of these vibrations plays an important role in the dynamic tactile perception of textures. The aim of the present study was to develop a novel means to tag the cortical activity related to the processing of these vibrations...

Journal: :Mechanika 2022

Bridge bearing damage is unavoidable in railway engineering. This work presents an investigation on the model of bridge and its influence dynamic responses high-speed train-track-bridge system. Primarily, mathematical description explained detail, which then compared with traditional linear model. Then a 3D considering established based interaction theory. Adopting model, influences single-poin...

Journal: :Acoustics 2022

This paper proposes an efficient hybrid analytical-computational approach for the simulation of mechanical vibrations and sound radiation in wind turbine drive trains.The computational procedure encompasses detailed modeling vibrational sources structural paths as well major panels airborne noise radiation. The angle-varying mesh stiffness is obtained from a series quasi-static finite element s...

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