Abstract: A device for holding and deploying apparatus for use in space includes a fixed body and a movable body coaxially connected to each other through balls displaceable from a retention position to a release position, and a shape memory alloy actuator remote-controllable to displace the balls from the retention position to the release position and the ensuing separation of the moveable body from the fixed body under the action of axial thrust elastic means. The shape memory alloy actuator consists of a torsionally-deformable bar.
Abstract: A device for the hold-down and controlled release of space satellites installed on launchers and loads installed on space satellites, includes a blocking member made up of segments radially displaceable from a mutually approached retaining position to a mutually spaced-apart release position of a connecting screw. In order to control the radial displacement of the segments between the retaining position and the release position there are provided a rotatable element coaxial with the blocking member, an articulated mechanism which operatively connects the rotatable element with the segments of the blocking member, and linear motors for driving the controlled rotation of the rotatable element and, through the articulated mechanism, the simultaneous displacement of the segments of the blocking member.
Type:
Application
Filed:
December 15, 2016
Publication date:
June 22, 2017
Applicant:
AEREA S.p.A.
Inventors:
Ruggero CASSANELLI, Ivo ALIVERTI, Luca Andrea PERNECHELE
Abstract: A device for holding and deploying apparatus for use in space includes a fixed body and a movable body coaxially connected to each other through balls displaceable from a retention position to a release position, and a shape memory alloy actuator remote-controllable to displace the balls from the retention position to the release position and the ensuing separation of the moveable body from the fixed body under the action of axial thrust elastic means. The shape memory alloy actuator consists of a torsionally-deformable bar.