Mechanical Engineering
Beam Analysis
Bending stress, shear, deflection with V/M/δ diagrams for common beam types
Bolted Joint
Preload, tightening torque, bolt stress, and joint diagram per VDI 2230
Foam Compression
Compression force, contact pressure, and compression set for foam and gasket seals
Shaft Fit
Interface pressure, assembly force, and hoop stress for press fits
Spring Design
Spring rate, Wahl stress, solid height, and buckling analysis
Tolerance Stack-Up
Worst case, RSS, and Monte Carlo tolerance analysis for dimension stacks
Thermal Graphite
Thermal resistance, temperature rise, and heat spreading for graphite sheets
Magnet Pull Force
Pull force, flux density, and hold weight for NdFeB magnets on steel
Display Optics
FOV, PPD, pixel pitch, and required resolution for near-eye displays
Electrical Engineering
PCB Trace Resistance
Trace resistance, resistance-per-cm, voltage drop, and copper loss
Resistor Divider
Output voltage, current, and resistor power for 2- or 3-resistor dividers
Instrument Backlog
Built and math-verified, but resting off the main deck. Still fully functional.
Contact Compression
Contact force, spring rate, contact resistance, and spring-back for electrical spring contacts
Junction Temp
Junction temperature and required heat-sink rating from the thermal resistance chain
O-Ring Gland
Squeeze, gland fill, stretch, and extrusion-gap limits per the Parker O-Ring Handbook
Thread Engagement
Required engagement length and thread-stripping strength per Machinery’s Handbook