Global ETD Search
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Showing 1 to 6 of 6 for “"Differential Drag"”.
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Formationkeeping of spacecraft via differential drag
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1986.
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CubeSat constellation implementation and management using differential drag
… 11, 9]. In low Earth orbit, there is sufficient drag to perturb satellite orbits. Though it varies widely based on conditions, at 500 kilometer (km) altitude, the acceleration due to drag on a 3U CubeSat can be around 15 [mu]m/s² per unit area [12]. Over time, this is enough acceleration to …
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Precision Pointing for the CubeSat Laser Infrared CrosslinK (CLICK) Mission
… This thesis also asses the slewing required for differential drag control which is used to maintain the crosslink range between the two CubeSats. Preliminary results are presented from the CLICK-B/C flight hardware integration and testing phases, as well as findings from simulation of the …
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A rotary shape memory alloy actuator for CubeSat deployable structures
… can be implemented in a CubeSat mechanism for differential drag management, increased power generation, and reconfigurable deployable structures. We propose using a shape memory alloy (SMA) actuator to meet this need. A SMA can be annealed at high temperatures to remember a trained shape. Upon …
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Momentum and mass transport by coherent structures in a shallow vegetated shear flow
… stability analysis suggest that channels with differential drag are conducive to the growth of Kelvin-Helmoltz shear instabilities. Indeed vortices are observed for all experimental conditions, and their passage frequency matches the most unstable frequency from linear theory. A typical vortex …
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Determining Feasibility of a Propulsionless Microsatellite Formation Flight Mission
… the pairing of electromagnetic actuators and differential drag to replace the functionality of a propulsive system is investigated. By using COTS magnetorquer boards to command satellite orientation, a scenario in which two 3U CubeSats are initially deployed from the ISS NanoRacks at an …