# Chain polygonal speed ripple
# Scope: Polygonal action geometric fractional speed variation.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

teeth = 15
meanSpeed = 1 m/s

fraction := 1-cos(pi/teeth)
variation := meanSpeed*fraction [m/s]

check ripple budget: fraction <= 0.03

scenario alternative: teeth = 12