MarcAnthony Diaz

Education

Conducted FEA simulations to optimize a car wheel rim for impact resistance and weight reduction.
Evaluated 1020 Steel and 6061 Aluminum designs, optimizing for strength-to-weight ratio.
Improved spoke geometry, achieving a 66% weight reduction (49.6 lbs to 16.8 lbs) while maintaining structural integrity.
Reduced maximum displacement by 64% (0.478 in to 0.174 in), increasing wheel stiffness.
Lowered maximum stress by 14% and increased Factor of Safety (FOS) from 0.107 to 0.159.
Conducted mesh convergence analysis, ensuring results remained consistent within a <5% deviation across refinements.

Engineered and optimized a biaxial test fixture for uniaxial testing machines, enabling multi-axis material testing
Conducted FEA on 304 Stainless Steel, identifying failure at 1,419 MPa (Yield Strength: 206.8 MPa)
Redesigned the fixture with AISI 4340 Steel, improving FOS from 0.15 to 0.415, but highlighting the need for further structural optimization under a 100 kN load
Refined CAD models in SolidWorks, enhancing cross-sections, fillets, and machining considerations
Validated design iterations through FEA, material selection, and failure analysis, demonstrating strong problem-solving in mechanical design

Designed and developed a precise four-cylinder engine model using SolidWorks, demonstrating ability to create accurate mechanical simulations with proper component relationships.
Created a highly detailed model showing optimized balance between theoretical power output, fuel efficiency, and operational smoothness in the assembly design.
Showcased modeling expertise by accurately representing reduced rotational mass through simulated titanium and steel components, highlighting understanding of materials selection principles.
Demonstrated comprehensive mechanical design knowledge by creating detailed models of key engine components—including connecting rods, pistons, and crankshaft—with proper alignment and fitment.
Illustrated thorough understanding of engine mechanics through the model assembly, representing theoretical improvements in mechanical power conversion efficiency.

Created an intricate 3D model of the PlayStation Portable (PSP) 1000 using SolidWorks, capturing the device’s iconic design with 95% accuracy.
Utilized advanced sketch tools to meticulously replicate the PSP’s ergonomic form factor, precise button layouts, UMD drive, and other critical components with high accuracy.
Enhanced the model’s visual realism by simulating the PSP’s signature screen backlight effect, using SolidWorks appearance tools to achieve a lifelike glow.
Demonstrated comprehensive understanding of portable gaming device engineering by integrating all key elements and features that defined the PSP 1000’s success in the market.