Viscous damping, capillary-tube (suspension / shock absorber) damper
Damping constant and normalised impulse of a piston damper that forces fluid through a thin capillary tube (Hagen-Poiseuille flow), as used in suspension and shock absorbers.
Damping constant, C0.8 10³ Ns/m
Normalised impulse, I₀16.08 Ns
Method & references
- Viscous (Hagen-Poiseuille) damping of a piston forcing fluid through a capillary tube — suspension and shock-absorber dampers.
The computation is a literal port of the original client-side JavaScript from /calculators/damper.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.