Hayden Mah Email & Phone Number

Los Angeles, Ca, Us

Long Beach, California, United States

• Designing and analyzing Terran R stage 1 aft unpressurized structure, tank primary joint interface, and TVCA clevises among others. Calculated final margins for PDR and CDR maturation of these components. • Currently supporting Terran R production start by addressing and dispositioning non conformances of both vendor-supplied machined components, as well as in-house manufactured friction stir welded structural skin weldments.

Long Beach, California, United States

• Collected and audited design criteria for multitude of primary structure, avionics, and valves REs to support successful Design Criteria Reviews.• Generated composite criteria for multidisciplinary problems from structural, fluid, and thermal inputs where needed such as stage 1 main engine feedlines.

Fort Worth, Texas, United States

• Redesigned current production parts for improved fatigue performance using historical fatigue test failure investigations and FE models.• Developed FE models using ANSYS Workbench for dynamic and drive systems components of FAA Part 29 commercial helicopter program to support damage tolerant design requirements. Parts analyzed include main rotor & tail rotor masts, blade grips, gearbox cases, gearbox internals, swashplates, pylon system, and controls components as well as composite… Show more • Redesigned current production parts for improved fatigue performance using historical fatigue test failure investigations and FE models.• Developed FE models using ANSYS Workbench for dynamic and drive systems components of FAA Part 29 commercial helicopter program to support damage tolerant design requirements. Parts analyzed include main rotor & tail rotor masts, blade grips, gearbox cases, gearbox internals, swashplates, pylon system, and controls components as well as composite main and tail rotor blades. • Validated FE models with strain data from static load and fatigue tests. Worked with in-house Python scripts to automate FEM results post-processing and plot generation. • Created crack no-growth threshold curves and utilized data to determine parts on which a detailed AFGROW analysis should be conducted. Worked closely with fatigue engineers on safe-life fatigue analyses. Show less

Augusta, Georgia Area

• Designed mechanical systems and hydraulic routing for Large Area Reel/Rotary mowers, aiming to increase part sharing and decrease costs across Jacobsen LF & AR platforms. • Collaborated with UK design team to improve 23” rotary deck design while keeping part commonality with 27” rotary decks.• Performed structural FEM analysis on cutting decks to ensure survivability and continued functionality under general and abusive working duty cycles.• Conducted field testing to… Show more • Designed mechanical systems and hydraulic routing for Large Area Reel/Rotary mowers, aiming to increase part sharing and decrease costs across Jacobsen LF & AR platforms. • Collaborated with UK design team to improve 23” rotary deck design while keeping part commonality with 27” rotary decks.• Performed structural FEM analysis on cutting decks to ensure survivability and continued functionality under general and abusive working duty cycles.• Conducted field testing to validate clipping discharge, ground roll performance, and blade cut quality effects of design changes. Show less

Atlanta, Georgia, United States

• Designed automated on-farm poultry harvesting and processing system to reduce cost and output of poultry farms. • Defined and documented cost-driven packaging analyses to fit hanging, stunning, slaughtering, and transportation systems inside two (2) 53’ trailer design.