Software Limitations

PASS/START-PROF® piping complexity is determined by the degree of freedom, calculated as:

N=6 (an + cc - 1) + 3 (ss + g + ha + s + t) + m rh + sh + cf + 2 (re + le) + ae + (ns + rl) + 12 fe + 9 ea,

where

When rigid rod hanger displacement is considered, m=3. Otherwise, m=1.

START-PROF analyzes pipelines with the 32000 degree of freedom: N ≤ 32000

The number of nodes is limited to:

NN < 32000 – 2 (ej + v + ia + fe + ea) - (an + cc - 1) - b - t - s,

where

the number of supports modeling soil, is determined by pipeline run length, structure and diameter.