Trunnion on the straight pipe, is a pipe connected without an opening. Trunnion on the straight pipe element can be placed into the node of intersection of three pipe elements (like a tee element). It allows to check stress and flexibility in the junction point
Property |
Description |
Name |
Element name. If checked then it shown in 3D view |
Branch not perpendicular to header |
If checked, branch and header joint angle is not checked and analysis is header as for a slanted stub-in. If not checked, branch and header joint is checked and if it is not equal to 90 degrees, an error is displayed. |
Weight |
Tee weight (with flanges) without insulation and product. Value set in standards is used, without taking into account the overload factor. Product and insulation weight with corresponding overload factors is calculated automatically based on adjoining pipes |
Automatic weight calculation |
If selected, tee weight is calculated automatically as total volume of two header and branch cylinders |
Analysis type |
There are several methods to analyze trunnions. It is simplified Kellogg method, original Kellogg method and use SIF and k factors automatically calculated using integrated finite element software PASS/NOZZLE-FEM |
Longitudinal Weld Joint Efficiency Factor, E |
Longitudinal weld joint efficiency factor, E. More... |
Pad thickness, tr (Sn) |
Pad thickness |
Refresh SIF and k using FEA |
|
SIF |
Insert > Tee > Trunnion