• Warning during Spectral Fatigue Post Processing

    Hi all, I have these warning messages after performing the Spectral Fatigue Post Processing. I don't really understand why these warnings occur. Can anyone provide any advice on how to solve these warnings? Thanks Note, I am using SACS version …
  • TIME HISTORY FATIGUE ANALYSIS IN SACS

    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…
  • Fatigue analysis

    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…
  • Pile fatigue

    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…
  • scatter diagram for fatigue analysis

    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…
  • MOSES | Tubular Joint Fatigue

    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…
  • SACS Fatigue Analysis Error

    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?
  • an error occured during fatigue analysis of offshore structure in the step of extract mode shapes analysis

    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 …
  • Significance of mesh intensity and target plate length, and the relationship between the two variables

    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…
  • User input S-N Curve

    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…
  • SACS / spectral fatigue analysis

    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
  • Tow Fatigue with SACS

    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…
  • RAO Spectral Fatigue warning [Total Life ratio = 2.00]

    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…
  • stress range and cycle counting

    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…
  • Anti Roll Tanks

    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…
  • Spectral Fatigue

    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!
  • Spectral Wind Fatigue

    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.
  • Wind Turbine Pole Analysis

    Hello, I have a question regarding the fatigue analysis for Wind Turbine Pole. What is the step to do the fatigue analysis on that pole.
  • Fatigue, Is the SN Curves of DNVGL-RP-C203 are equivalent to NORSOK curves

    Dear all, Is the SN Curves of DNVGL-RP-C203 are equivalent to NORSOK curves listed below: Thanks and Regards, SWARUP Selvaraj.
  • Center of Damage Utility Version 11.2.0.15

    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…
  • ERROR - 113 NOT A RECOGNIZABLE LOAD CASE

    Any body can help me to solve my fatigue running? I have check it many times, but I don't know what's wrong with my SACS file
  • Question is the method of Tow fatigue analysis.

    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…
  • Request for SACS Wind turbine module example.

    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…
  • Error when running Spectral Fatigue Analysis

    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
  • SACS fatigue check for intenal ring stiffener

    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…