Effects of Tether Stretch Dynamics on a Tethered Satellite Yo-Yo Control Law
dc.contributor.author | Harman, Thomas L. | |
dc.date.accessioned | 2019-10-02T19:50:39Z | |
dc.date.available | 2019-10-02T19:50:39Z | |
dc.date.issued | 1993 | |
dc.description.abstract | Yo-yo control is a nonlinear approach to tethered satellite libration control that damps in-plane and out-of-plane libration by deploying and retracting the tether at appropriate times. Based on the assumption that the tether is massless and rigid, the algorithm computes tether length changes and a limit on the rate of change of reel rate (length acceleration) that maintain positive tether tension while actively damping libration. The research published to date has studied yo-yo control using the same approximations used to formulate the control law. In this work, a simulation that models tether mass and flexibility reveals that tether stretch dynamics cause rapid loss of tether tension, and subsequent loss of control. A one dimensional tether stretch model is developed and used to compute an upper limit for tether length acceleration. The tethered satellite simulation demonstrates that the modified yo-yo control law maintains positive tension and effectively controls libration. | en_US |
dc.identifier.citation | "Effects of Tether Stretch Dynamics on a Tethered Satellite Yo-Yo Control Law," with James Dabney, et. al. ProQuest Dissertations Publishing, 1993. | en_US |
dc.identifier.uri | https://hdl.handle.net/10657.1/1491 | |
dc.publisher | ProQuest Dissertations Publishing | en_US |
dc.title | Effects of Tether Stretch Dynamics on a Tethered Satellite Yo-Yo Control Law | en_US |
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