Extendible membrane systems, devices, and methods for space applications
An extendible membrane system may include: an extendible central column; one or more membranes; and/or one or more foldable membrane supports configured to support the one or more membranes. Each of the one or more foldable membrane supports may be configured to extend from the extendible central column. In some embodiments, one or more of the one or more foldable membrane supports includes two or more segments that may be configured to couple with each other. A method of deploying one or more membranes may include unfolding one or more foldable membrane supports from a folded configuration to a linear configuration. An extendible membrane device may include one or more membranes and one or more foldable membrane supports configured to support the one or more membranes.
1. An extendible membrane system comprising:
an extendible central column;
a first membrane;
a second membrane;
a first foldable membrane support that includes a first segment of the first foldable membrane support and a second segment of the first foldable membrane support, wherein a first end portion the first segment of the first foldable membrane support is coupled with a first end portion of the second segment of the first foldable membrane support utilizing at least a hinge or a latch; and
a second foldable membrane support that includes a first segment of the second foldable membrane support and a second segment of the second foldable membrane support, wherein a first end portion of the first segment of the second foldable membrane support is coupled with a first end portion of the second segment of the second foldable membrane support utilizing at least a hinge or a latch, wherein:
the first foldable membrane support and the second foldable membrane support are configured to support the first membrane and the second membrane such that:
the first segment of the first foldable membrane support is coupled with a first end of the first membrane and the second segment of the first foldable membrane support is coupled with a first end of the second membrane; and
the first segment of the second foldable membrane support is coupled with a second end of the first membrane and the second segment of the second foldable membrane support is coupled with a second end of the second membrane; and
the first foldable membrane support and the second foldable membrane support extend from the central column, wherein the first foldable membrane support and the second foldable membrane support are configured to unfold and extend in a respective linear direction perpendicular to the extendible central column such that:
the first segment of the first foldable membrane support and the second segment of the first foldable membrane support extend off a first side of the extendible central column;
the first segment of the second foldable membrane support and the second segment of the second foldable membrane support extend off the first side of the extendible central column; and
a second portion of the first foldable membrane support is coupled with the extendable central column utilizing at least a hinge or a latch such that the first foldable membrane support travels with a portion of the extendible central column during deployment and a second portion of the second foldable membrane support is coupled with the extendible central column utilizing at least a hinge or a latch such that second foldable membrane support remains stationary with respect to the extendible central column.
2. The system of claim 1 , wherein the first foldable membrane support, the second foldable membrane support, the first membrane, and the second membrane are configured to store in a sandwiched configuration with the first membrane folded in an accordion configuration between the first segment of the first foldable membrane support and the first segment of the second foldable membrane and the second membrane folded in an accordion configuration between the second segment of the first foldable membrane support and the second segment of the second foldable membrane support.
3. The system of claim 1 , further comprising a third foldable membrane support and a fourth foldable membrane support positioned on an opposite side of the extendible central column with respect to the first foldable membrane support and the second foldable membrane support.
4. The system of claim 3 , wherein a total combined tension in the first membrane, second membrane, third membrane, and fourth membrane is less than or equal to 30% of the deployed compression strength of the extendible central column in a deployed state.
5. The system of claim 1 , wherein the extendible central column includes a telescoping truss column.
6. The system of claim 1 , wherein the extendible central column includes at least a rollable column, a foldable column, a coilable column, or an articulated truss column.
7. The system of claim 1 , wherein the extendible central column includes a lattice structure.
8. The system of claim 1 , wherein the first membrane and the second membrane include one or more photovoltaic arrays.
9. The system of claim 1 , wherein the first membrane is configured to fold up between the first segment of the first foldable membrane support and the first segment of the second foldable membrane and the second membrane is configured to fold up between the second segment of the first foldable membrane support and the second segment of the second foldable membrane support.
10. The system of claim 1 , wherein the first membrane is configured to roll up between the first segment of the first foldable membrane support and the first segment of the second foldable membrane and the second membrane is configured to roll up between the second segment of the first foldable membrane support and the second segment of the second foldable membrane support.
11. The system of claim 1 , further comprising one or more guy wires coupled with at least a portion of the extendible central column and with at least a portion of the first foldable membrane support and the second foldable membrane support.
12. The system of claim 11 , wherein at least one of the one or more guy wires is positioned out of plane with respect to a plane defined by the first membrane and the second membrane in an extended state.
13. The system of claim 1 , further comprising a third membrane support and a fourth membrane support, wherein:
the first foldable membrane support and the second foldable membrane support are configured to extend from a first side of the extendible central column; and
the third foldable membrane support and the fourth foldable membrane support are configured to extend from a second side of the extendible central column.
14. The system of claim 1 , wherein the first foldable membrane support and the second foldable membrane support are configured as V-fold configurations.
15. The system of claim 14 , wherein each of the V-fold configurations is configured to stow on a respective side of the extendible central column.
16. The system of claim 1 , wherein the first foldable membrane support and the second foldable membrane support are configured to deploy from a folded configuration to a linear configuration, wherein each linear configuration extends in a respective direction perpendicular to the extendible central column.
17. The system of claim 1 , wherein the first foldable membrane support and the second foldable membrane support are configured to unfold and extend in a respective linear direction perpendicular to the extendible central column.
18. The system of claim 1 , wherein the first foldable membrane support includes a third segment to form a Z-fold configuration with the first segment of the first foldable membrane support and the second segment of the first foldable membrane support.
19. The system of claim 1 , wherein the first foldable membrane support, the second foldable membrane support, the first membrane, and the second membrane are configured such that the first membrane and the second membrane deploy from a stowed state to a deployed state after the extendible central column is extended.
20. The system of claim 1 , wherein the extendible central column includes a split tube boom.