Responsible Engineers: Justin, Aimee, Tamara, Alex
Medusa Characterization Motor Design
- New characterization motor design
- propellant casting tube & liner
- how to get around?
- 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
- propellant casting tube & liner
- Propose changing nozzle size to change pressure
- Smaller setup (less propellant) than large motors tested for Phoenix
- Scaling issues?
- 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
- Clocking
- also time consuming
- less of an issue if tolerancing is better
Phoenix Issues
- Experienced leakage
- No seal (tolerancing issues with O-rings)
- Data analysis was done badly
Assignments:
- Calculating yield strength in a thread/maximum load on a thread - Alex