Multibody dynamics driving GNC and system design in tethered nets for active debris removal

Benvenuto, Riccardo; Lavagna, Michèle; Salvi, Samuele

doi:10.1016/j.asr.2016.04.015

Cited by 57 publications

(14 citation statements)

References 17 publications

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“…In order to numerically simulate the motion, the forces and torques generated by the tether and control actuators are used with Eqs. (15) and (16). The following section presents the sub-tether TSS configuration equations of motion.…”

Section: Iic Single Tether Equations Of Motionmentioning

confidence: 96%

“…Net capturing research is highly active at present. Simulations [12][13][14][15] and experiments [16][17][18] have been performed to understand how a net wraps around a target and how it remains secured. This paper does not consider how the Tethered Spacecraft System (TSS) was established, but assumes that a tethered connection between the chaser and target was created either using a net or harpoon.…”

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confidence: 99%

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Experimental Validation for Tethered Capture of Spinning Space Debris

Hovell

Ulrich

2017

AIAA Guidance, Navigation, and Control Conference

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The space debris population has been growing steadily since Sputnik was launched in 1957. Recently, the risk of cascaded collisions between debris has become a concern, as this has the ability to render certain popular orbits too risky to continue using. Debris mitigation is important to limit the growth of the debris population, but active debris removal has been found to be necessary to keep the current debris quantity from growing. An active debris removal mission consists of a chaser spacecraft performing a rendezvous with a target object, capturing it, and towing it to a disposal orbit or into the atmosphere. Capturing the debris has challenges because of residual angular momentum present in the uncooperative debris. This paper examines techniques for dissipating the angular momentum present in a target debris using visco-elastic tethers, through numerical simulations and planar experiments in the Spacecraft Robotics and Control Laboratory at Carleton University. Both simulation and experimental results agree that a tether configuration with multiple tether attachment points on a target is significantly faster at stabilizing a spinning debris than the currently accepted single tether configuration.

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Section: Iic Single Tether Equations Of Motionmentioning

confidence: 96%

mentioning

confidence: 99%

Experimental Validation for Tethered Capture of Spinning Space Debris

Hovell

Ulrich

2017

AIAA Guidance, Navigation, and Control Conference

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“…Net capturing research is highly active at present. Simulations [12,[19][20][21][22][23] and experiments [14,[24][25][26] have been performed to understand how a net wraps around a target and how it remains secured. This thesis does not consider how the Tethered Spacecraft System (TSS) was established, but assumes that a tethered connection between the chaser and target was created either using a net or harpoon.…”

Section: Previous Workmentioning

confidence: 99%

Detumbling Space Debris Using Tethers

Hovell¹

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The population of debris in Earth orbit has exponential growth due to cascaded collisions between orbiting debris. It is critical that high-risk pieces of debris are actively removed to limit the natural growth of the space debris population. A popular strategy to capture space debris is with tethered nets. Detumbling the debris after capture represents one of the outstanding challenges associated with tethered capture of debris.This thesis presents a new tether configuration that passively enhances the detumbling ability of the tethered net system, and compares it to the presently-accepted tether configuration. A new laboratory facility was developed to allow for an experimental comparison. Both simulation and experimental results agree that the novel tether configuration outperforms the presently-accepted configuration at detumbling debris. The experimental results are the first, to the best of the author's knowledge, to demonstrate the detumbling of debris using tethers.iii Acknowledgements I sincerely thank my supervisor, Steve Ulrich. Without him, I would have never considered pursuing graduate studies, nor would I have fallen in love with research.

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“…A necessity of a closing mechanism has been discussed by Sharf et al [13]. the net capturing based on the penalty-based method [14,15]. In contrast, Goª¦biowski et al have developed a simulator based on Cosserat rod theory and simulated the net contacting with a target using the predictor-corrector algorithm [16].…”

Section: Introductionmentioning

confidence: 99%