In the rail members memory alloy wire stiffness adjustment apparatus and method based on

The present invention provides an apparatus and method for in-orbit based memory alloy wire member stiffness adjustment, including memory alloy wire, ohmic heating module and a temperature measurement module; wherein the electric heating module for heating the shape memory alloy wire is energized; means for monitoring the temperature of said temperature-memory alloy wire, the energizing current to the heating module in accordance with the energization of the temperature adjustment memory alloy wire; end of the memory alloy wire for connecting the satellite body, the other end for connecting said deployment member. Further comprising a follower spring assembly; the follower spring assembly for connecting the satellite body; end of the memory alloy wire is connected to the output terminal of the follower resilient spring assembly, and the other end connected to the deployment member. The present invention is based on feedback temperature measurement module, for changing the state memory alloy Jin Sijia heat memory alloy wire by energization heating module, such that memory alloy wire can be constrained to expand a rigidity member.