⚠ RESONANCE REACHED — STRUCTURAL FAILURE IMMINENT
Max Deflection
0.0 m
Resonance Ratio
2.50
Collapse Risk
Low
0.5 Hz
Medium
Low (1940s)
Adjust the wind frequency toward the bridge's natural frequency (0.2 Hz). Watch what happens as they match — this is resonance. Every structure has a natural frequency. When external forces match it, energy accumulates. The Tacoma Narrows Bridge collapsed in just 4 hours of wind.