Tree Rigging Shock (Dynamic) Load
Estimated peak dynamic load and the multiplier over static weight when a piece is dropped and caught on a lowering line, from the drop, rope length, and elongation.
Formula and source
stretch = elong/100 x rope_length; peak_load = static x (1 + sqrt(1 + 2 x drop / stretch)); multiplier = peak / static. An energy / elastic-catch estimate.
Arborist rigging dynamic-loading research (Detter, Rust, Donzelli, named generically) and ANSI Z133-2017 by name; first-principles energy balance.
Audience
This tile is built for agriculture and the adjacent professions in the Agriculture and Forestry group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
Related tiles
Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.