Three-dimensional structure spacecraft and method for controlling three-dimensional structure spacecraft

A three-dimensional structure spacecraft comprising:

• a plurality of compression members;
• a plurality of tension members, wherein
• three or more of the tension members of the plurality of tension members are connected to each end of the compression members,
• a three-dimensional shape formed by the compression members and the tension members is maintained by tension of the tension members,
• a variable damping force damper is disposed in at least the compression members or the tension members,
• the variable damping force damper is configured to generate a predetermined force in a longitudinal direction of the compression members or in a longitudinal direction of the tension members, and
• the variable damping force damper includes:
• a coil;
• and
• an iron core connected to the compression members or connected to the tension members, or an iron core compression member is inserted in the coil.

A method for controlling a three-dimensional structure spacecraft that includes

• a plurality of compression members and
• a plurality of tension members, and in which
• three or more of the tension members of the plurality of tension members are connected to each end of the compression members,
• a three-dimensional shape formed by the compression members and the tension members is maintained by tension of the tension members,
• a variable damping force damper is disposed in at least either the compression members or the tension members, and
• the variable damping force damper is configured to generate a predetermined force in a longitudinal direction of the compression members or in a longitudinal direction of the tension members, the method comprising:
• causing a control device to detect a change in a current or a voltage in the variable damping force damper;
• causing the control device to calculate a damping force that is the predetermined force that reduces the change in the current or the voltage;
• and
• causing the control device to apply the current or the voltage corresponding to the damping force to the variable damping force damper.