Results 61 to 70 of about 1,231 (130)

Dynamic Interaction of Elevated Guideway with Uncontrolled Maglev Vehicles [PDF]

open access: yes, 2009
A flexible guideway on an elevated foundation is a key to affordable maglev urban transit. The flexible guideway can undergo significant dynamic motion, either when a vehicle solely relies on an open-loop control system or when a vehicle equipped with ...
Velma, Sumanth Reddy
core   +2 more sources

Analysis of guidance and levitation forces between HTS magnets and conductive tubes for Hyperloop

open access: yesAIP Advances
High-temperature superconducting (HTS) magnets combined with linear synchronous motors and electrodynamic suspension (EDS) are considered as one of the most suitable technologies for Hyperloop. However, HTS magnets on pods generate strong magnetic fields,
Suyong Choi   +2 more
doaj   +1 more source

Laboratory investigation of electric charging of dust particles by electrons, ions, and UV radiation [PDF]

open access: yes
In many cosmic environments electric charging of dust particles occurs by electrons, ions, and UV radiation. In case of interstellar dust particles the value of their electric charge can have, for instance, very important consequences for their ...
Gruen, E., Pinter, S., Svestka, Jiri
core   +1 more source

Optimized sensor configurations for a Maglev suspension system [PDF]

open access: yes, 2008
This paper discusses a systematic approach for selecting the minimum number of sensors for an Electromagnetic suspension system that satisfies both optimised deterministic and stochastic performance objectives.
Goodall, Roger M.   +2 more
core  

A review of load models for the prediction of footfall-induced vibration in structures [PDF]

open access: yes, 2013
Crowd induced dynamic loading in large structures, such as gymnasiums or stadium, is usually modelled as a series of harmonic loads which are defined in terms of their Fourier coefficients.
Alarcón Álvarez, Enrique   +3 more
core  

ShakeNet: A portable wireless sensor network for instrumenting large civil structures [PDF]

open access: yes, 2015
We report our findings from a U.S. Geological Survey (USGS) National Earthquake Hazards Reduction Program-funded project to develop and test a wireless, portable, strong-motion network of up to 40 triaxial accelerometers for structural health monitoring.
Govinda, Ramesh   +4 more
core   +2 more sources

Physically-based reduced order modelling of a uni-axial polysilicon MEMS accelerometer [PDF]

open access: yes, 2012
In this paper, the mechanical response of a commercial off-the-shelf, uni-axial polysilicon MEMS accelerometer subject to drops is numerically investigated.
CORIGLIANO, ALBERTO   +3 more
core  

Radio-frequency electric field generated by vibration modes of a microtubule [PDF]

open access: yes, 2014
Katedra elektromagnetického ...
Havelka, Daniel
core  

Magnetic bearings-state of the art [PDF]

open access: yes
Magnetic bearings have existed for many years, at least in theory. Earnshaw's theorem, formulated in 1842, concerns stability of magnetic suspensions, and states that not all axes of a bearing can be stable without some means of active control. In Beam's
Fleming, David P.
core   +1 more source

Ensuring Safe Exploration: Ares Launch Vehicle Integrated Vehicle Ground Vibration Testing [PDF]

open access: yes, 2009
Ground vibration testing has been an integral tool for developing new launch vehicles throughout the space age. Several launch vehicles have been lost due to problems that would have been detected by early vibration testing, including Ariane 5, Delta III,
Chenevert, D. J., Tuma, M. L.
core   +1 more source

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