Modeling and Control of a Six Degrees of Freedom Maglev Vibration Isolation System [PDF]
Sensors, 2019 The environment in space provides favorable conditions for space missions. However, low frequency vibration poses a great challenge to high sensitivity equipment, resulting in performance degradation of sensitive systems.
Qianqian Wu +4 more
doaj +2 more sources
Flight test results for microgravity active vibration isolation system on-board Chinese Space Station [PDF]
npj MicrogravityThe Fluid Physics Research Rack (FPR) is a research platform employed on-board the Chinese Space Station for conducting microgravity fluid physics experiments.
Wei Liu +5 more
doaj +2 more sources
Nonlinear longitudinal/transversal modal interactions in highly extensible suspended cables [PDF]
, 2008 Recent research literature mostly deals with nonlinear resonant dynamics of low-extensible cables involving transversal modes. Herein, we aim to investigate geometrically nonlinear longitudinal/transversal modal interactions in highly extensible ...
Rega, G., Srinil, N.
core +4 more sources
Nonlinear hybrid-mode resonant forced oscillations of sagged inclined cables at avoidances [PDF]
, 2007 We investigate non-linear forced oscillations of sagged inclined cables under planar 1:1 internal resonance at avoidance. To account for frequency avoidance phenomena and associated hybrid modes actually distinguishing inclined cables from horizontal ...
Rega, Giuseppe, Srinil, Narakorn
core +4 more sources
Two-to-one resonant multi-modal dynamics of horizontal/inclined cables. Part I : theoretical formulation and model validation [PDF]
, 2007 This paper is first of the two papers dealingwith analytical investigation of resonant multimodal dynamics due to 2:1 internal resonances in the finite-amplitude free vibrations of horizontal/inclined cables. Part I deals with theoretical formulation and
Chucheepsakul, Somchai +2 more
core +4 more sources
Theoretical and Experimental Investigations Into Umbilical Cables for Communications Under the Sea [PDF]
, 2014 Continual advances are being made in the control and monitoring of subsea oil wells by the application of new technology for sensors, subsea processing and communications devices. With these advances, the demands on the subsea umbilical are constantly increasing with deployment lengths and depths growing and the quantity of controlled functions now ...
Mitchell, Andrew George Cairncross
openaire +2 more sources
The effects of kinematic condensation on internally resonant forced vibrations of shallow horizontal cables [PDF]
, 2007 This study aims at comparing non-linear modal interactions in shallow horizontal cables with kinematically non-condensed vs. condensed modeling, under simultaneous primary external and internal resonances.
Rega, Giuseppe, Srinil, Narakorn
core +4 more sources
Two-to-one resonant multi-modal dynamics of horizontal/inclined cables. Part II : internal resonance activation, reduced-order models and nonlinear normal modes [PDF]
, 2007 Resonant multi-modal dynamics due to planar 2:1 internal resonances in the nonlinear, finite-amplitude, free vibrations of horizontal/inclined cables are parametrically investigated based on the second-order multiple scales solution in Part I [1].
Rega, Giuseppe, Srinil, Narakorn
core +4 more sources
Post-buckling behaviour of slender structures with a bi-linear bending moment-curvature relationship [PDF]
, 2007 Certain classes of slender structures of complex cross-section or fabricated from specialised materials can exhibit a bi-linear bending moment–curvature relationship that has a strong influence on their global structural behaviour.
Vaz, M. A. +3 more
core +1 more source
Experimental and numerical studies of inclined cables: free and parametrically-forced vibrations [PDF]
, 2008 Because of few experimental studies in the inclined cable literature, this paper is aimed at experimental modelling and investigating the linear free and nonlinear forced vibrations of sagged inclined cables, by discussing the relevant outcomes in the ...
REGA, GIUSEPPE +5 more
core +3 more sources