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  1. llaren

    FEA analysis on Hemispherical head

    Dear professionals, I attached sketch
  2. llaren

    FEA analysis on Hemispherical head

    Hi Prex, thank for your answer,,model is not wrong,,But that vonmise stress need to compare with allowable stress or yield stress? head type is ellipsoidal head and outside dia is 1516mm.Design code is ASME VIII Div.1. Actually we can calculate with p= (SEt/(kD-2t (K-0.1) formula. But if I...
  3. llaren

    FEA analysis on Hemispherical head

    Anybody can help me to figure out Pressure vessel head calculation? I run with ANSYS for pressure 8.25Bar. Head thickness is 7mm , min 8mm -1mm corrosion. But Von-mises stress is 202Mpa that is higher than allowable stress 137Mpa. Can I comparable vonmises stress and allowable stress? So that...
  4. llaren

    Winch Drum Torque calculation.

    Good Day to you all,, May I ask some question. I hope anybody can help me here. I confused to calculate Drum torque. Drum weight is 200Ton. Pull force at layer dia 5.6m is 20Ton. As my option, Torque is 20Tonx 2.8m= 549kNm..But I found 607kNm in specification. I can't clarify which one is...
  5. llaren

    Heavy Duty Winch Drum Torque

    Good Day to you all,, May I ask some question. I hope anybody can help me here. I confused to calculate Drum torque. Drum weight is 200Ton. Pull force at layer dia 5.6m is 20Ton. As my option, Torque is 20Tonx 2.8m= 549kNm..But I found 607kNm in specification. I can't clarify which one is...
  6. llaren

    Offshore container floor allowable deflection

    Dear Sir/Madam I engineering DNV classed offshore container. I calculated floor bending stress and deflection. I calculated floor panel max. deflection from "Roark " formula for stress and strain . Each floor Panel size is 1100mm x 400mm x 6 mm thickness. uniform load assume is 22.32 KN/m^2. How...
  7. llaren

    INTERMEDIATE HEMISPHERICAL HEAD

    thank so much.
  8. llaren

    INTERMEDIATE HEMISPHERICAL HEAD

    i just try to look up and study,,thank
  9. llaren

    How to decide nominal thickness

    Dear All. Can anybody reply me to know and calculate nominal thickness. I used pressure vessel plate 516 gr.70 minimum thickness is 28..how should be nominal thickness? Thank in advance
  10. llaren

    INTERMEDIATE HEMISPHERICAL HEAD

    Good day to you all. I am a new engineer in pressure vessel designing.I working in pressure vessel in human occupancy design company.I would greatly appreciate if anybody help me to get right way. Normally I read design according to 2007 ASME boiler & pressure Vessel code. But for me that code...

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