When modeling incline supports using the “Ultimate Force Gap” option, AutoPIPE currently limits the “Phase for K1” input field to 2 decimal places. This makes modeling low-friction / anti-vibration clamp supports, such as Wood VDN clamps not possible.
These clamps often require very small phase values calculated from:
Phase = Force / Stiffness
A typical case with:
Breakaway force = 2880 lb
Stiffness = 2×10⁶ lb/in
requires:
Phase = 2880 / (2×10⁶) = 0.00144 in
However, the current interface rounds this value to 0.00 in.
Change the support phase input units/display to 1E-3 inches (thousandths of an inch), or alternatively allow at least 5 decimal places for support phase inputs.
See Forum entry for reference: https://bentleysystems.service-now.com/community?id=community_question&sys_id=9b344f0d47200714d5d91098c26d43c4&anchor=answer_22e0eb42872887945bea87380cbb35d5