Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by G5Ufo

  1. G5Ufo

    Riser Wave Induced Vortex Shedding

    Your note on the Sect.9.7.1.6 is right. Assuming that all data is available then we can distinguish between two categories depending on KC. If you are using a software to work on this subsea riser analysis, the software usually provides you with the field to input the wave and the current. You...
  2. G5Ufo

    DNV-RP-F204 - Riser Fatigue Analysis

    It would be better only to apply the DFF on the omitted detail fatigue analysis. Too bad that I don't have a copy of this document to grasp the meaning of the quote, but the principal of doing analysis in being conservative unless you have the strong background to explain when you're trying to...
  3. G5Ufo

    Riser Wave Induced Vortex Shedding

    If you refer to DNV-RP-C205, and your main interest is only to analyse the vortex induced oscillations due to the wave then refer to Sec.9.7. Most discussion on VIV is usually only take current into account, but I would say it will really depend on what the outcome you want to have from your...
  4. G5Ufo

    Allowable Bearing Stress for Wellhead

    tr1ntx I'm referring to 20" landing sub, 16" casing hanger & packoff. I've been looking at the ASME Sect VIII Div 2 Sect 4 and it doesn't tell clear information to me, I'll look again, and I don't think API 6A says anything about it. boo1 Thanks for the table, but I might be right dafty here as...
  5. G5Ufo

    Allowable Bearing Stress for Wellhead

    Hello! I'm working on calculation of Load Shoulder Capacity of the wellhead, and for this I need to know the Allowable Bearing Stress. If the material is AISI4130 75K Yield Stress and 95k Tensile Stress, what is the Allowable Bearing Stress for it? I look at one reference, found : Allowable...

Part and Inventory Search