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Kasiphon Kurojjanawong

Kasiphon Kurojjanawong

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  • RE: Manual for SACS Wind Turbine

    Geoff McDonald
    Geoff McDonald
    Here is a complete copy. Let me know if this works for you. Regards, Geoff
    • over 5 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS - Strange SCF of Tubular Connection with Ring Stiffeners

    Geoff McDonald
    Geoff McDonald
    Kasiphon, SACS automatically applies the minimum SF limit of 1.5 for all locations and uses a default of 2.5 for the brace axial crown SCF and brace out-of-plane bending SCF in accordance with the original Smedley and Fisher recommendations which is…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS - Strange SCF of Tubular Connection with Ring Stiffeners

    Kasiphon Kurojjanawong
    Kasiphon Kurojjanawong
    Hi Geoff, It is clear and thank you very much for your reply. I have another question. Refer to API or original paper of Smedley&Fisher, they require different minimum SCF for each location and load type, see picture below. How can I put in SACS…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS - Strange SCF of Tubular Connection with Ring Stiffeners

    Geoff McDonald
    Geoff McDonald
    Kasiphon, SACS is taking the maximum axial SCF in accordance with API RP 2A Section C5.3.3 stating that maximum saddle and crown values should be applied to the whole brace/chord intersection: Essentially we are just taking the maximum axial SCF…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS - Strange SCF of Tubular Connection with Ring Stiffeners

    Geoff McDonald
    Geoff McDonald
    Kasiphon, I need to check with the developer on this one. I think it may have something to do with how the ratio is applied to the stress which may be causing the problem, but it does look suspicious that the SCF is identical for the cradle and saddle…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Extrapolated and Stretched Airy Wave Theory

    Geoff McDonald
    Geoff McDonald
    Kasiphon, 1) Do we have 'Extrapolated Airy Wave Theory' in Seastate software ? If not, can we have in the future SACS version ? Seastate doesn't support Extrapolated Airy Wave Theory yet, only in Wave Response. I will put in an enhancement request…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: How to separate fatigue life of brace and chord on screen ??

    Wen Meng
    Wen Meng
    Hi Kasiphon, The results reported in SACS are the total damage/fatigue life and the fatigue check criteria should be the same for both chord and brace members despite of different SF defined( eg: D<1, Life>50). So the question here is to define different…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Method used for stiff clay in SACS for generation of API-recommended p-y data

    Geoff McDonald
    Geoff McDonald
    Rupam, According to API RP 2A Section 6.8.5, the load deflection curves for soft clays are not applicable. The user should use good judgment in determining the load deflection curves for stiff clays. SACS uses the soft clay p-y parameters from API for…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Rupam Mahanta
  • RE: The forum is not working for Safari

    Geoff McDonald
    Geoff McDonald
    Kasiphon, I just tested posting to the SACS forum and viewing replies on Safari and did not have any issues. Some users have been experiencing problems due to an outdated cache on their device. You can try clearing the Safari browser history and website…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: How can we get ‘Stress Range VS Cycle’ from SACS Rain-flow counting calculation?

    Wen Meng
    Wen Meng
    Hi Kasiphon, First you can always open fatigue extraction using the old "Interactive fatigue" module normally. You may experience problems when try to open that in "Precede" as this is newly developed and not stable. However we're fixing that in next…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: SACS 5.7 Version/Code Check for Tubular & Non-Tubular Member

    Geoff McDonald
    Geoff McDonald
    Kasiphon, You are correct. Apparently that feature has not yet been implemented. Sorry for the confusion. Regards, Geoff
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Spectral Wind Fatigue Analysis - Length, Roughness, CSF, EXTRACT and Fatigue Damage File

    Geoff McDonald
    Geoff McDonald
    Danilo, The common solution file generated from the static analysis of the SEAOCI does not contain the fatigue damage at any point during the analysis. It is the solution of the stiffness matrix for the load cases provided. In the case of the spectral…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
    • Danny Manabat
  • RE: Spectral Wind Fatigue Analysis - Length, Roughness, CSF, EXTRACT and Fatigue Damage File

    Geoff McDonald
    Geoff McDonald
    Danilo, I just wanted to follow up on one item because I found a workaround that will allow you to generate a fatigue damage file for spectral wind fatigue: Set up your Spectral Wind Fatigue Analysis as usual and run the analysis. Set up a separate…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Spectral Wind Fatigue Analysis - Length, Roughness, CSF, EXTRACT and Fatigue Damage File

    Geoff McDonald
    Geoff McDonald
    Danilo, 1. The recommended value for the reference length is 1800m. I am not sure why the average reference length is 180m in DNV-RP-C205. I will note that the the DNV formula does look a bit different than the Harris spectrum referenced in our Dynamic…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
  • RE: Spectral Wind Fatigue - Harris Spectrum Equation

    Geoff McDonald
    Geoff McDonald
    Danilo, The equation that you described is indeed the same formula with a few additional terms. Sometimes the wind spectra is defined in terms of f*S(f)/U^2 instead of S(f) so if you divide out f/U^2 from the following equation you will end up with…
    • over 6 years ago
    • MAXSURF | MOSES | SACS | OpenWindPower
    • MAXSURF | MOSES | SACS | OpenWindPower Forum
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