Concepts — StabilityCore

Prototype-Scale Bearing Assembly

This concept rendering shows the electromagnetic friction reduction bearing at prototype scale — the core innovation of StabilityCore's isolation system.

StabilityCore prototype bearing assembly — AI concept render

AI concept render — Midjourney

Dual-Material Sphere

Polished metallic sphere with a ferromagnetic steel core and titanium shell — responds to electromagnetic fields while providing a low-friction bearing surface.

Electromagnetic Coils

Copper coils wound into the concave bearing dish generate a repulsive field that partially levitates the sphere during earthquakes, reducing friction to near-zero on demand.

PID Controller

ESP32 microcontroller running real-time PID control at 100 Hz — computing counter-forces within 10 milliseconds of detecting ground motion.

Geared Motors & Cable Restraint

Worm-geared cable winch motors provide active PID force correction and passive anti-bounce restraint — cables physically tie the building onto the bearing, preventing vertical uplift during seismic motion. Worm gears self-lock if power fails.

Building-Scale Architecture

This cross-section rendering shows how StabilityCore's isolation system works at full building scale — a 3-story apartment building floating on a single friction pendulum bearing, supported by a Space Needle-inspired tripod foundation anchored deep into bedrock.

StabilityCore building-scale cross-section — AI concept render

AI concept render — Midjourney

Tripod Foundation

Three angled reinforced concrete legs — inspired by the Space Needle's tripod geometry — anchor 25–40 feet deep into bedrock and converge at a central underground hub. The friction pendulum bearing sits at this convergence point, distributing load across three anchor points for maximum stability.

Friction Pendulum Bearing

A single concave dish with a dual-material sphere supports the building's full weight. Self-centering via gravity — the building naturally returns to center after displacement.

Cable Winch System

Four steel cables connect from geared winch motors on the tripod foundation legs to the building's corners. PID-controlled differential tension corrects lateral motion, while cable tension physically prevents the building from bouncing off the single bearing during vertical seismic forces.

Telescoping Hydraulic Strut Pylons

Outer pylons are telescoping hydraulic struts that extend and retract during vertical seismic motion — absorbing energy like building-scale shock absorbers. The strut motion pumps heated fluid through a thermal circuit that cools the EM bearing coils, using underground bedrock as a heat sink. Earthquake-powered cooling with zero external pumps.

Self-Sustaining Energy

Linear alternators and seismic piston compressors harvest the earthquake's energy to power the EM coils and cooling system. Zero grid dependency during the event.

From Concept to Reality

These AI renderings represent our design vision. A physical 1/25 scale prototype is currently under construction using real ESP32 microcontrollers, electromagnetic coils, and PID control algorithms. The same engineering principles shown here — friction pendulum bearings, electromagnetic friction reduction, and seismic energy harvesting — are being validated at prototype scale before building-scale deployment.

Concept Visualizations