Analysis of Spinning Spacecraft with Wire Booms, Part 1: Derivation of Nonlinear Dynamics

Kemp, Brian L.; McGee, T. G.; Shankar, Uday J.

doi:10.2514/6.2009-6202

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Both the Van Allen Probes [9][10][11] and MMS [13,17] missions were controlled based on the hub state rather than the hub and the tethers. This has the major benefit of not needing to sense the angles θ and ϕ for each tether.…”

Section: Controlmentioning

confidence: 99%

“…More recently, the Van Allen probes (also known as radiation belt storm probes) mission launched in 2012 with four 20 m booms spinning near 3 rpm with end masses of ∼200 g. Their dynamics are discussed both in and out of plane in Refs. [9][10][11]. Even more recently, the Magnetospheric Multiscale (MMS) mission launched in 2015 with four 60 m booms also held in tension by the 3 rpm spin.…”

mentioning

confidence: 99%

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Free-Space Dynamics and Control of the Rotary-Motion Extended Array Synthesis Spacecraft Concept

Hughes

Blay

Ziegler

et al. 2022

Journal of Spacecraft and Rockets

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The Rotary-Motion Extended Array Synthesis spacecraft is a dual-spin spacecraft with long tethers held in tension by the spin. This paper derives the free-space (not considering orbital effects) dynamics of this spacecraft, and it compares two controllers in performance and the effort expended. In contrast to prior work, one of the controllers used takes account of the tether motion rather than just considering the hub motion. The spacecraft is simulated performing a challenging task including an acceleration and 90 deg slew with both controllers. The controller that accounts for the tether motion uses ∼10% less fuel while providing similar errors.

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Section: Controlmentioning

confidence: 99%

mentioning

confidence: 99%