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- Calculating yield strength in a thread/maximum load on a thread & cases with screw on forward closures - Alex My name jeff
- Work with Cruz to figure out 3d experience - Aimee
- How thick does case need to be to reach pressure - Elizabeth
- Reach out to Kelly - Elizabeth, https://www.mcmaster.com/8527K244/?SrchEntryWebPart_InpBox=garolite+xx+phenolic
- Integrated forward closure case design - Justin
- Test stand - Aimee & Tamara
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- New characterization motor design
- propellant casting tube & liner
- how to get around?
- 38mm or 54mm liner (contact Kelly)
- can make about 10 motors
- thicker phenolic liner that Kelly used https://www.mcmaster.com/8527K244/?SrchEntryWebPart_InpBox=garolite+xx+phenolic
- case can be reused
- maybe make 2 in case one breaks
- very thick case to accommodate a range of pressures
- 300 psi to 2000/2500 psi
- case should be rated for 3000 psi
- need to test at pressures expected during flight
- drill hole in liner to read pressure transducer
- make forward closure part of the case
- disassembly is harder
- saves on O-rings
- test with blue thunder ring
- adding o-ring on nozzle side
- glue disk to bottom
- Put steel ring on top w/small hole and clock accordingly
- propellant casting tube & liner
- Pour propellant in layers into liner
- Propose changing nozzle size to change pressure
- Smaller setup (less propellant) than large motors tested for Phoenix
- Scaling issues?
- No mandril
- Could 3d print casting hardware
- Plug and Play
- Easier to do in blast chamber
- Cheaper
- Less travel
- Data collection is easier (each fire is one data point w/one burn rate)
- Need to keep length of motor constant (affects burn rate)
- Pressure transducer on bottom
- RTV use
- very time consuming waiting to dry
- need to use RTV on nozzles
- to minimize time make nozzle integration faster
- all phenalic and graphite must be replaced
- Clocking
- also time consuming
- less of an issue if tolerancing is better
- Nozzles
- on the order of 2 inches
- will be machining lots of nozzles
- need to figure out nozzle range to get desired pressure values
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