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Figure 1.
PW-Sat2 with de-orbitation sail system opened by tubular booms (photo: https://pw-sat.pl)
Figure 2.
Tethered space net (TSN)
Figure 3.
Tether space system step-by-step operation. Start: stowed structure on the satellite; first step: deployment of the stiffer boom; second step: deployment of the tubular booms and opening of the net, checking the opening area; third step: contact of the net with the debris; fourth step: retracting the tubular boom, checking the closing time.
Figure 4.
Mechanism in open configuration (photo: T. Pałgan and SRC PAS)
Figure 5.
Top: JUICE LPPWI (“primary”, CFRP) booms and bottom: RPWI (“secondary”, metal, thin-walled) booms, located at the end of a “primary” one
Figure 6.
Top: modal analysis results for JUICE LPPWI (“primary” CFRP booms); bottom: modal analysis results for RPWI (“secondary”, metal, thin-walled booms)
Figure 7.
Prototype mechanism with tubular boom in stowed (top) and deployed (bottom) configuration (photo: SRC PAS)
Figure 8.
Finite element analysis for a deployed tubular boom under a tip load (analysis used the LS-DYNA software)
Figure 9.
Laboratory test of bending of a tubular open-section boom (photo: T. Pałgan)
Figure 10.
Plastic zones around the “kink” of deformation
Figure 11.
Plastic deformation results received in a laboratory test (photo: T. Pałgan)