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Fall Arrest System — Free Fall, Deceleration & Clearance

Interactive 3D fall-arrest simulator: drop a worker on a shock-absorbing lanyard or self-retracting lifeline, watch the energy absorber deploy, and see whether the free-fall distance, arrest force and total fall clearance meet OSHA 1926.502 limits.

Engineering & Materials3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

This simulator models a real personal fall-arrest system used on scaffolds, roofs and steel structures: a worker on a lanyard or self-retracting lifeline falls freely until the device engages, then decelerates as the energy absorber deploys. Adjust the free-fall distance, worker mass, absorber deceleration distance and anchor height, then drop the worker to see the impact velocity, the average arrest force against the OSHA 1926.502 8 kN limit, and whether the total required fall clearance actually fits beneath the anchor point before the worker would strike the ground or the next level down.

⚙ Under the hood

Drop a worker on a shock-absorbing lanyard or self-retracting lifeline and watch the energy absorber deploy — see the impact velocity, average arrest force against the OSHA 8 kN limit, and whether the total fall clearance actually fits beneath the anchor point.

fall protectionOSHAenergy absorberoccupational safetyengineering physicsclearance calculation

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install