TY - JOUR
T1 - Morphing lattice boom for space applications
AU - McHale, Ciarán
AU - Telford, Robert
AU - Weaver, Paul M.
N1 - Publisher Copyright:
© 2020
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Structures used in space applications demand the highest levels of stiffness for their mass whilst also performing in a hostile environment. To partly address these requirements and so as to also pack efficiently for stowage during launch we propose a new type of compact telescopic morphing lattice space boom. This boom stows within a 1U CubeSat volume and is lightweight being only 0.4 kg. The boom has a total length of 2 m in its deployed state which is 20 times its stowed height. The device comprises two multi-stable cylindrical composite lattices that are joined telescopically. These lattices nest inside one another in the stowed configuration, with the objective of improving packaging efficiency. Notably, prestress and lamina orientation are used to smoothly change shape from being compact when stowed to being extended when deployed. The lattices in the boom have been designed to maximise deployment force and to be self-deploying by tuning manufacturing parameters. As a result, only a small, lightweight mechanism is required to regulate deployment speed of the lattice boom. By reversing its direction, this mechanism can be used to retract the lattice boom to its stowed configuration, thereby enabling two-way reconfigurability.
AB - Structures used in space applications demand the highest levels of stiffness for their mass whilst also performing in a hostile environment. To partly address these requirements and so as to also pack efficiently for stowage during launch we propose a new type of compact telescopic morphing lattice space boom. This boom stows within a 1U CubeSat volume and is lightweight being only 0.4 kg. The boom has a total length of 2 m in its deployed state which is 20 times its stowed height. The device comprises two multi-stable cylindrical composite lattices that are joined telescopically. These lattices nest inside one another in the stowed configuration, with the objective of improving packaging efficiency. Notably, prestress and lamina orientation are used to smoothly change shape from being compact when stowed to being extended when deployed. The lattices in the boom have been designed to maximise deployment force and to be self-deploying by tuning manufacturing parameters. As a result, only a small, lightweight mechanism is required to regulate deployment speed of the lattice boom. By reversing its direction, this mechanism can be used to retract the lattice boom to its stowed configuration, thereby enabling two-way reconfigurability.
KW - Cylindrical lattice
KW - Deployable structure
KW - Experimental testing
KW - Morphing structures
KW - Multi-stable
UR - http://www.scopus.com/inward/record.url?scp=85092022541&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2020.108441
DO - 10.1016/j.compositesb.2020.108441
M3 - Article
AN - SCOPUS:85092022541
SN - 1359-8368
VL - 202
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 108441
ER -