Optimal Deployment Control of Spinning Space Webs and Membranes

Gärdsback, Mattias; Tibert, Gunnar

doi:10.2514/1.42203

Cited by 18 publications

(11 citation statements)

References 102 publications

(121 reference statements)

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“…Several control strategies of membranes deployment were studied in order to avoid re-coiling in one-step deployment [9,11,12]. A 20 m diameter membrane reflector was deployed at the end of a spacecraft using a one-step method during the Znamya-2 experiment in 1993 [9], which demonstrated that a spin deployment of a gossamer structure can be controlled by simple means.…”

Section: Control Methodsmentioning

confidence: 99%

“…Four cameras on the central hub were used to record the web deployment and stabilization phases. The space web was folded around the central hub in a star folding pattern [12] and deployed by centrifugal forces acting on the attached daughters.…”

Section: Experiments Designmentioning

confidence: 99%

“…However, rollers or other extending mechanisms may take up too much space for small deployable structures. A one-step deployment method was thus identified as a possible choice for future web deployment without complicate extending mechanisms [11,12,19]. This method can also be used as a backup when sails or webs fail to deploy by roller mechanisms or stored strain energy.…”

Section: Introductionmentioning

confidence: 99%

“…However, the zero-g condition in space is difficult to simulate on ground tests for large scale web deployment [3,20]. Computational simulations, e.g., the finite element method [11,21], multi-particle models [19,22] and analytical methods [9,11,12,23] have been used to analyze the dynamics of centrifugal force deployment. Ground scaled model experiments [20,22] are also used to compare with simulations.…”

Section: Introductionmentioning

confidence: 99%

“…However, the web entangled due to out-of-plane motions or end of deployment shocks. A more reliable deployment control is desirable [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Post-launch analysis of the deployment dynamics of a space web sounding rocket experiment

et al. 2016

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Lightweight deployable space webs have been proposed as platforms or frames for a construction of structures in space where centrifugal forces enable deployment and stabilization. The Suaineadh project was aimed to deploy a 2×2m2 space web by centrifugal forces in milli-gravity conditions and act as a test bed for the space web technology. Data from former sounding rocket experiments, ground tests and simulations were used to design the structure, the folding pattern and control parameters. A developed control law and a reaction wheel were used to control the deployment. After ejection from the rocket, the web was deployed but entanglements occurred since the web did not start to deploy at the specified angular velocity. The deployment dynamics was reconstructed from the information recorded in inertial measurement units and cameras. The nonlinear torque of the motor used to drive the reaction wheel was calculated from the results. Simulations show that if the Suaineadh started to deploy at the specified angular velocity, the web would most likely have been deployed and stabilized in space by the motor, reaction wheel and controller used in the experiment

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Section: Control Methodsmentioning

confidence: 99%

Section: Experiments Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…However, the web entangled due to out-of-plane motions or end of deployment shocks. A more reliable deployment control is desirable [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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