WZ°William ZhuENGINEERING PORTFOLIO
← All projects
MECHANICAL & MANUFACTURING

Golden Gate Bridge Stirling Engine

A custom-machined Stirling engine with a Golden Gate Bridge-inspired bedplate, a balanced compass-rose flywheel, and a tested speed of over 1,100 RPM.

Role
Design & machining
Tools & methods
SolidWorks · Center-of-mass analysis · Machining
Finished custom-machined Stirling engine with a compass-rose flywheel and red bridge-inspired bedplate

01 / Design inspiration

The engine combines two visual references: the Golden Gate Bridge for the bedplate and a compass rose for the flywheel. Designed for a Machine Design and Manufacturing course, the project brings an expressive form into a working mechanical assembly.

02 / Modeling & balance

I modeled all parts in SolidWorks and used center-of-mass analysis of the flywheel sub-assembly to determine the balance weight dimensions. The assembly renders document the relationship between the bridge-inspired structure, flywheel, and engine components.

03 / Machining & testing

The engine was machined with a polished finish on the flywheel and a brushed finish on the bedplate. During testing, the engine ran at over 1,100 RPM.

SolidWorks assembly renders

Front assembly render
Front view · Compass-rose flywheel and bridge-inspired bedplate
Isometric assembly render
Isometric view · Full engine assembly
Rear assembly render
Rear view · Linkage and engine components

Finished engine · Lightbox photographs

Front view of the finished engine showing the compass-rose flywheel and bridge silhouette
Front view · The machined compass-rose flywheel and Golden Gate Bridge-inspired bedplate, assembled on the finished base.
Rear angled view showing the Stirling engine linkage, cylinder, and back of the flywheel
Mechanism view · The rear angle reveals the connecting linkage, cylinder assembly, and flywheel sub-assembly.

Engine in motion

VIDEO / OPTIONAL

Test video coming later

Test footage coming soon · Engine ran at over 1,100 RPM.
NEXT PROJECT

M3 Math Modeling Paper

View project