Applies To | |
Product(s): | AutoPIPE |
Version(s): | ALL; |
Area: | Static Seismic Analysis |
Date Logged & Current Version | May 2022 12.08.00.063 |
How AutoPIPE is calculating the added mass during the static seismic analysis in subsea pipelines or piping or if we are required to add the hydrodynamic added mass based on selected coefficients Ca values?
Where:
Wadd = Additional unit weight of pipe for Static Seismic analysis for submerged piping
Do = Outside diameter of pipe including Insulation and Refractory thickness
fs = Factor for submerged pipes: 0.0 when pipe not submerged or Segment flag for buoyancy turned off, 0.5 when one end of pipe is submerged, 1.0 when both ends of pipe are submerged
G = Specific gravity of Water (defined in Buoyancy dialog)
Ca = Added mass coefficient Ca (defined in Buoyancy dialog)
The rest of the static seismic calculations are carried out as usual after adding this additional unit weight to the weight of the pipe.