Load mass rework

[nathanperreau]

Summary

This work relates to task #752, breaking apart the equipment and useful load GASP mass class. A variety of smaller components were created to simplify the equipment_and_useful_load class. The summation and calculation components are split up now as well.

The majority of the other changes on the branch relate to modifying test cases for component testing, and all-encompassing testing.

Related Issues

• Resolves Break EquipAndUsefulLoadMass class into detailed components, each computes one component mass #752

Backwards incompatibilities

None

New Dependencies

None

[Kenneth-T-Moore]

I think the main issue that causes the optimization results to change is the unusable fuel mass, which was missing before but now is computed and passed into the fuel balances.

[jkirk5]

furnishing, anti_icing, apu, avionics, emergency equipment masses all missing from summations, and are therefore throwing off higher-level mass values

[jkirk5]

furnishing, anti_icing, apu, avionics, emergency equipment masses all missing from summations, and are therefore throwing off higher-level mass values

Seems like these are overrides, so I am still trying to figure out how an off-design mission with fixed mass is producing different results than main

[Kenneth-T-Moore]

furnishing, anti_icing, apu, avionics, emergency equipment masses all missing from summations, and are therefore throwing off higher-level mass values

Seems like these are overrides, so I am still trying to figure out how an off-design mission with fixed mass is producing different results than main

The new components compute an unusable fuel mass, which is extra mass it has to carry now once everything is balanced..

[jkirk5]

The new components compute an unusable fuel mass, which is extra mass it has to carry now once everything is balanced..

That fuel weight was already accounted for under useful load before, so it shouldn't have changed any top-level masses here (now it it finally is being tracked under its own variable). Maybe it is getting double counted?

[Kenneth-T-Moore]

The new components compute an unusable fuel mass, which is extra mass it has to carry now once everything is balanced..

That fuel weight was already accounted for under useful load before, so it shouldn't have changed any top-level masses here (now it it finally is being tracked under its own variable). Maybe it is getting double counted?

Oh, yeah. That is possible. If it is already in the mass summation, then the fact that it is now output as a variable caused it to promote and connect in to this balance component.

[jkirk5]

Ready to go once we resolve the non-converging bench test

[xjjiang]

Does WAUXG in GASP mean oxygen system mass? @jkirk5