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08. Pressure vessel reports lc (sin alpha ) / r2 calculation which is apart of the Verification of buckling - DIN 18800 Part 4 - Lifting requirements to be unacceptable, why and what does it mean when using AutoPIPE Vessel?
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Report
01. How to automatically generate report after strength calculations?
02. How to open a specific component calculation report from the option "Show Selected Report Calculation Detail" option. How to resolve this?
03. How to view report for specific components in AutoPIPE Vessel?
04. Where are the sub-reports located in AutoPIPE Vessel and how to access it? Where are the files for the "Show Selected Report Calculation Details" located at?
05. How to Set the Report Language for AutoPIPE Vessel?
06. After calculation I cannot view the output report. How do I view the report?
07. The thickness of the neck of tubing is not sufficient according to UG - 45.
08. Pressure vessel reports lc (sin alpha ) / r2 calculation which is apart of the Verification of buckling - DIN 18800 Part 4 - Lifting requirements to be unacceptable, why and what does it mean when using AutoPIPE Vessel?
q. Why is the Stress larger than allowable with no indication to the user while using AutoPIPE Vessel?
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08. Pressure vessel reports lc (sin alpha ) / r2 calculation which is apart of the Verification of buckling - DIN 18800 Part 4 - Lifting requirements to be unacceptable, why and what does it mean when using AutoPIPE Vessel?
Example of report:
Answer:
The first criteria in red (l
c
(sin a ) / r
2
) is a limit of application based on the unsupported length of conical shell (lc) and the apex angle (a) and the radius at the large base (r
2
), it must be < 0.8 to met the code requirements.
The unsupported length can be reduced in adding a stiffener.
The second criteria in red (vor U / zul U = 3 > 2) is a limit of application related to the out of roundness.
By default vor U= 1.5%.
As per the code
zul U
= 0.5% when Diameter > 1250 mm.
This ratio must be < 2 to met the code requirements.
The default value (
vor U
= 1.5%) can be reduced by user in Component properties Dialog (Out of Roundness field).
There is no alternative to DIN 18800
(
buckling analysis method)
currently implemented in APV.
18800
AutoPIPE Vessel
Pressure Vessel
Lifting
buckling
r2
DIN
LC
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Created by
Mike Dattilio
When:
Fri, Oct 14 2022 1:40 PM
Revisions:
1
Comments:
0
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