# Spring natural-frequency screening
# Scope: Lumped equivalent spring/mass resonance; not internal spring surge modes.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

rate = 5 N/mm
effectiveMass = 0.1 kg
excitation = 5 Hz

frequency := sqrt(rate/effectiveMass)/(2*pi) [Hz]
separation := frequency/excitation

check frequency separation target: separation >= 3

scenario alternative: rate = 4 N/mm