Hi,
I would like to perform time history fatigue analysis. Is there any sample or procedure on how to perform the analysis in SACS? in case yes, please feel free to send it to my email. ( ali_aidibi_94@hotmail.com )
Many thanks in advance.
Best…
Hi
I am working on fatigue analysis of jacket structures. As per the SACS doement as below
"3.5.4 Using Stresses at the Chord Face By default, member hot spot stresses at the modeled end of the brace are used for fatigue calculations. For members…
Hello
I am doing pile fatigue check based on pil.csf file (obtained from PSI analysis).
Pile is defined as concentric tubular section so that grout is done in between the tubular.
in FTOPT line grouted memeber option is selected and in FTOPT2 ,colum…
I have scatter diagram with total number of occurrences 175320 waves. It is indicated a note that these records are " Hourly event number of occurrence - reference period: 20
years". My question, what does this note mean? should we multiply the scatter…
Hello,
The following presented the example of the MOSES Output for Tubular Joint Fatigue. Based on this, the upper and lower CDR is for Brace and Chord respectively. It is understood that, the Joint *J1359 - Node *J2031 is belong to the Brace Element…
Hi Users,
I am getting the following error when I run the spectral fatigue analysis file:
SEASTATE FILE 1 HAS 60 LOAD CASES WHERE POSTFILE 1 HAS 1440 LOAD CASES
Can anyone explain this error and what must have gone wrong?
dear madam or sir there,
i got a question when doing the spectral fatigue analysis of a offshore jacket structure, an error occured during the step of extract mode shapes analysis.
it showed the following msg:
***ERROR IN MATRIX DECOMPOSITION
…
Hi everyone,
I would like to inquire what is the significance of mesh intensity in joint meshing. In the Utilities manual, section 3.2.3, the following highlighted statements are made (see screenshot below):
Which lead to these questions:
What…
Hi
Could you advise what is the stress unit to be used when entering the S-N curve manually using the command "S-N".
When entering using the command "SN-User" it clearly state the stress unit is ksi. But there is no unit defined for using command…
hi all ,
while generating the seastates (dynamic transfer function) on a cantilever inside the water it was noticed that there is bulb at the early frequency. any ideas why this happens
and thanks
Hi there.
I need to perform Fatigue analysis for sea transportation in order to understand this calculation I started studying this guide "Tow Fatigue with SACS".
I ran into a problem, if I understood correctly this formulas => have to calculate these…
Hi,
When we run RAO spectral fatigue we have warning message like below. What is the cause and consequence of this warning?
We didn't have this warning before when we had 16 headings (22.5 deg increment) in RAO and 16 wave scatters in ftginp.
Scatters…
Dear all
I'm working on a spectral analysis for a leg member.
An I extract the nominal stress range and cycle counting for a member, say, by using St-cyl-command ?
the reason is that, the member has weld detail joints which can't be checked within…
Hello dear community,
I have a question about how to create an elevated anti-scratch tank in Maxsurf Stability Advanced, first to verify its free surface effect, the tank is located on the bow castle deck, the software does not recognize the total…
Hello everyone,
Could you please clarify the significance of the resulting RMS value when we run the spectral fatigue analysis?
RMS value = Sqrt(m0) or RMS = 2 Sqrt(m0) ???
Thanks!
Hai,
I have run the analysis for Spectral wind fatigue. But there are error occur during analysis.
This is my dynamic response input file
Can someone help me on this.
Dear all,
I am trying to use Center of Damage Utility for calculate COD wave height and time period.
In the fatigue input file, I could only input 11 wave heights in SCWAV card.
Can anyone explain how to input more than 11 wave heights in wave scatter…
Is it possible to perform tow fatigue analysis with combination of RAO of topside motion and topside dynamics? I want to combine dynamic of structure(local part) with RAO of topside motion. I didn't look forward to combine RAO with dynamic data. In case…
I'm Mr.Gong who works at Zentech Engineering in Seoul, South Korea.
We would like to do Fatigue and Strength Check using the SACS Wind turbine module from GH-Bladed results.
While browsing the example, I found an example of the following link:
https…
Hi everyone,
When attempting to run a Spectral Fatigue Analysis, I immediately get the following error message;
*** ERROR - LOAD CASE 1 HAS PERIODS NOT IN DESCENDING ORDER
Anyone have any idea what I'm doing wrong?
Cheers,
Naz
Hi,
I need your advice on using the SACS program.
When ring stiffener is defined in SACS fatigue analysis, we can find below ring stiffened connection report on fatigue list file.
1. In this report, what is purpose of the "Ring SCF"?
2. If ring…
Based on fatigue results, I tried to get joint details by using EXTRACT input line but it doesn't work. Another person asked the same question previously without getting any answer.