3 ms·
> Attaching a beam at one end requires a more rigid structure which is more weight Not really because that allows you to omit other parts of the original self-
by jhgb 5y ago
> Attaching a beam at one end requires a more rigid structure which is more weight
Not really because that allows you to omit other parts of the original self-supporting "fanned" structure which formerly had a similar role to that beam. Furthermore you wouldn't be building this structure to withstand 3g like the "stock" UltraFlex/MegaFlex arrays but you'd build it specifically to withstand static 0.16g in one axis for deploying after landing on the Moon. Consequently I very strongly doubt that this would give it "more weight" than the current UltraFlex/MegaFlex arrays already have because you're assuming more weight for a flimsier structure and that just doesn't make any sense, unless you'd assume the use of inferior materials for some reason.
- Retric 5y agoThat fanned structure is very strong. For a one dimensional example consider an I-beam supported at the center vs having that same I-beam attached only at the edge. Which do you think can support more weight? And again even at Mars’s 0.38g it’s already bending. It can clearly survive more force, but not at an optional solar collection angle. Use the same thing on the moon near the poles and sure it’s not going to break, but it’s also not collecting 200W/kg.