Project Summary
This project involved the design, analysis, and production of four identical frames used to house electronics and batteries for sub-sea data recording. I designed the frame to hold all required equipment using titanium and 5086 aluminum for corrosion resistance during long deployments in the ocean. Part of the frame was designed using Grade 5 Titanium for strength. The frames are roughly 2000lbs each, and are rated for deployment to an ocean depth of 6000m. I calculated the maximum stresses seen on the frame and its welded sub-assemblies based on the estimated values for the breakout force required to lift the frame from the seafloor using hand calculations and FEA. Based on these calculations and AWS D3.7, I determined the appropriate weld types, locations, and sizes to be used during the frame’s production, and improved frame geometries to mitigate high stress regions. Upon fabrication, I load tested the frame in order to verify the design. I also managed all material procurement and fabrication to include weld plans and procedures and assisted with the initial assembly. All dissimilar metals were isolated to prevent galvanic corrosion.
Implemented Skills
CAD (PTC Creo)
structural analysis using first principles hand calculations
weldment design and analysis
finite element analysis using ANSYS
drawing generation following GD&T standards
material selection for rugged environments
structural testing
design for manufacturing and assembly