...
- Neglect drogue deployment bag as of right now, we will take this into account on calculations further down the line.
- Vehicle dimensions are subject to change
- Main parachute shroud line length are subject to change–I also don't think this value accounts for the confluence angle, so it will actually be a little lower than advertised.
| Constraint | Description | ||||
|---|---|---|---|---|---|
| WC,D > RB | The line connecting the top of the main chute canopy to the inside of the deployment bag must be long enough such that the main parachute is not stuck inside the deployment bag upon full line extension. | ||||
| WA,H > WA,E,F,G + RD + SD + lfc | When lines between the mission package and fin can are fully extended, the drogue parachute must be within the airstream. | ||||
| WA,H > lmp + hmp + lfc | Assuming full line extension, the mission package and booster section should not hit one another during descent. This neglects the effect of drag on these sections and their respective masses. | ||||
WA,E,F,G - lmp > 9hmp -
| This constraint reduces the impact of forebody wake on the drogue parachute during drogue descent. The same definition of forebody is chosen as in the previous constraint for the same reason. We subtract the vertical height of the shroud lines to reach a total canopy distance of ~9 forebody diameters. Unknown User (jcoray@mit.edu) add source? |