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  • Users: s1111
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  1. s1111

    translate moment from shell/nozzle junction to flange

    I have axial load(tensile/compressive) and longitudinal and circumferential bending moments at nozzle/shell intersection. Axial load is along centerline of nozzle, circumferential and longitudinal are along tangential axes at shell. I need to check flange on a nozzle and for that the loads need...
  2. s1111

    Applying NBC 2005 Seismic to towers/vessels

    Does anyone have experience applying NBC 2005 Seismic Code to pressure vessels? I am looking through it right now but am unclear at the moment to its application to vessels and towers. Any help is appeciated. Thank you in advance. s1111
  3. s1111

    Seismic: Zero Period Acceleration & Zone Factor

    Could someone please explain: 1. Zero Period Acceleration 2. Zone factor Their relation to each other if any (formula). Thank you in advance. Regards, s1111
  4. s1111

    Difference between Response Spectrum Method and IS:1893 RSM

    Could someone please highlight the difference between Response Spectrum Method and IS:1893 RSM (2002)? In particular, I am interested in how IS:1893-2002 could be alternatively modeled using Response Spectrum Method. Thank you in advance. Regards, s1111
  5. s1111

    Seismic: Response Spectrum Method

    Where can I find detailed information for the Response Spectrum Method for Seismic calculations? Thank you in advance for your help. Regards, s1111
  6. s1111

    Seismic calculations

    Where can I read about Seismic calculations? In particular I am interested in calculating reactiong at base of the support skirt and how it is derived? Thanks and regards, s1111
  7. s1111

    on the datum

    Hello, I noticed that when modeling compress the set datum offset, accounts for straight flange length. Could you thorw more light on the functioning of the datum. Thanks in advacen for your comments. s1111
  8. s1111

    On trunion design

    Greetings group, When designing a trunion, if there is overstress in the trunion near shell (branch at junction), should the pad thickness be increased or should the pipe thickness be increased. From my understanding it should be the pipe whose thickness should be increased, and it should be...
  9. s1111

    rigging analysis

    Does Compress have rigging analysis? I am using build 6252. Thanks s1111
  10. s1111

    inserting components in Compress

    I have a vessel with upper shell and upper shell. I wish to break it down to 15 cylinders of smaller size. What is the fastest way of doing it without redesigning it? I tried insert and it shows the insert after, but it doesn't insert when I select my shell. Is there may be a split option...
  11. s1111

    Difference between nominal and finished thickness

    What is the difference between nominal and finished thickness? Thank you. s1111
  12. s1111

    Bending Stress of a vessel in lifting/rigging

    Hi all, Could someone tell me how to hand calculate bending stress of a pressure vessel during lifting/rigging analysis. I am using the following, please let me know if this is correct approach: 1. Solving forces and moments for Equilibrium. 2. Calculating Bending Moments at each force 3...
  13. s1111

    Trunnion Lifting calcs

    Hello, I have just started freshly with pressure vessels and am slowly learning it. Could someone please tell me what calculations are required for a tall vertical vessel lift using 2 trunnion w/ 1 tailing lug and which standards to follow? Thanks

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