scholarly journals Vibroimpact Dynamics of a Tethered Satellite System

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
B. S. Yu ◽  
H. Wen
Keyword(s):  
Incident Angle ◽  
Satellite System ◽  
Mapping Method ◽  
Cell Mapping ◽  
Free Flight ◽  
Tethered Satellite ◽  
Tethered Satellite System ◽  
The Stability ◽  
The Moment ◽  
The Impact

This paper presents the vibroimpact dynamics of an in-plane tethered subsatellite caused by sudden braking during deployment or retrieval. The full dynamics of the subsatellite are composed of its free-flight and the instantaneous impacts. At the moment of impact, the reflective angle of the subsatellite is envisioned to be equal to its incident angle such that the impact law is obtained. Then, the stability of the periodic vibroimpacts is analyzed using the composite Poincaré map. Further, the vibroimpact responses that do not exceed a specified region are numerically determined via the cell mapping method.

On the Mechanics of Periodic Motion and Control of Tethered Satellite System in Elliptical Orbit

2019 ◽  
Vol 11 (06) ◽  
pp. 1950057
Author(s):  
Z. J. Pang ◽  
Z. Zhao ◽  
Q. T. Wang ◽  
Z. H. Du
Keyword(s):  
Periodic Solutions ◽  
Equations Of Motion ◽  
Satellite System ◽  
Critical Value ◽  
Stable Region ◽  
Periodic Motions ◽  
Orbital Eccentricity ◽  
Tethered Satellite ◽  
Tethered Satellite System ◽  
The Stability

This study investigates the periodic motions of an in-plane tethered satellite system in elliptical orbits. The equations of motion of the system are derived, and periodic solutions are obtained by perturbation method. Then, the stability properties of the periodic solutions are studied. Analysis results show that the periodic solutions become unstable when orbital eccentricity is larger than a critical value. Two classical control schemes are used to convert the unstable periodic motions to stable ones. Stability analyses of periodic solutions of the two controlled systems show that the two control methods can improve the critical value of orbital eccentricity. Numerical simulations of the controlled system are carried out to demonstrate the validity of the stable region.

Study on the stability of Tethered Satellite System

2011 ◽  
Vol 68 (11-12) ◽  
pp. 1964-1972 ◽  
Author(s):  
Yong He ◽  
Bin Liang ◽  
Wenfu Xu
Keyword(s):  
Satellite System ◽  
Tethered Satellite ◽  
Tethered Satellite System ◽  
The Stability

Current Collection Model Characterizing Shuttle Charging During the Tethered Satellite System Missions

2000 ◽  
Vol 37 (2) ◽  
pp. 212-217 ◽  
Author(s):  
Victor M. Aguero ◽  
Brian E. Gilchrist ◽  
Scott D. Williams ◽  
William J. Burke ◽  
Linda Krause ◽  
...  
Keyword(s):  
Satellite System ◽  
Tethered Satellite ◽  
Tethered Satellite System ◽  
Current Collection

Dynamic analysis of a tethered satellite system with a moving mass

2013 ◽  
Vol 75 (1-2) ◽  
pp. 267-281 ◽  
Author(s):  
Wonyoung Jung ◽  
Andre P. Mazzoleni ◽  
Jintai Chung
Keyword(s):  
Dynamic Analysis ◽  
Satellite System ◽  
Moving Mass ◽  
Tethered Satellite ◽  
Tethered Satellite System

Diurnal variability of frontal dynamics, instability, and turbulence in a submesoscale upwelling filament

2021 ◽  
Author(s):  
Jen-Ping Peng ◽  
Lars Umlauf ◽  
Julia Dräger-Dietel ◽  
Ryan P. North
Keyword(s):  
Solar Radiation ◽  
Early Morning ◽  
Shear Instability ◽  
Surface Boundary ◽  
Surface Boundary Layer ◽  
Diurnal Variability ◽  
Frontal Dynamics ◽  
The Stability ◽  
The Moment ◽  
The Impact

AbstractRecent high-resolution numerical simulations have shown that the diurnal variability in the atmospheric forcing strongly affects the dynamics, stability, and turbulence of submesoscale structures in the surface boundary layer (SBL). Field observations supporting the real-ocean relevance of these studies are, however, largely lacking at the moment. Here, the impact of large diurnal variations in the surface heat flux on a dense submesoscale upwelling filament in the Benguela upwelling system is investigated, based on a combination of densely-spaced turbulence microstructure observations and surface drifter data. Our data show that during nighttime and early-morning conditions, when solar radiation is still weak, frontal turbulence is generated by a mix of symmetric and shear instability. In this situation, turbulent diapycnal mixing is approximately balanced by frontal restratification associated with the cross-front secondary circulation. During daytime, when solar radiation is close to its peak value, the SBL quickly restratifies, the conditions for frontal instability are no longer fulfilled, and SBL turbulence collapses except for a thin wind-driven layer near the surface. The drifter data suggest that inertial oscillations periodically modulate the stability characteristics and energetics of the submesoscale fronts bounding the filament.

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