Modified thread length to be representative of what we get in real life from supplier bolting (McMaster). McMaster bolt drawings are not very representative of what we get in real life due to stuff like varying thread and grip length. Even had to get supplier to measure thread length so that we know if we have adequate grip length to install fastener. Went through a whole excercise just to not have threads in the shear plane (which there isn’t really going off from it unless we cut a large chuck of threads out.
- Used “Thread” function in NX to generate additional threads of the bolt to be representative of what we’re testing
Test Design Concept
- Modified hole clocking to be representative between gust load and crash load tests
- Rotated components within CAD to get correct orientation per Technical Requirement Documentation
Defined Statement of Work – Fitting Design and Test:
- Overall sole ownership as RDE/RTE for entire series
- Responsible for all design components such as load trains and frame components
- Responsible for ensuring all designs adhere to program defined TRD limitations
- Sole owner off all drawing documents, such as Manufacturing (Machined components) and Layout Drawing (Hydraulics, Lab location, flight hardware)
- Responsible for the development and release of all Test Plans and Test Procedure documentation
- Vendor support for manufacturing new designed components
- Responsible for test set up and execution (Test Readiness Reviews, Test Conducting, Quick Test Look Reports)
Factor of safety: 2/3 for static hardware & 3/5 structures (Yield vs Ultimate)