Large extendable rigid structures

摘要

The structure has an articulation system (320) formed of primary and secondary articulation systems respectively pivoting primary panels (111-114) and secondary panels (301-306) along primary and secondary axes, where the structure is configured such that front surfaces of the panels form a reflecting surface in deployed configuration. Locking devices (330) are provided at periphery of the surface, where each device removes a degree of freedom between non-adjacent secondary panels articulated by the secondary articulation system so as to stiffen a reflector in the configuration.