Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

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

Search results for query: *

  • Users: BigTank
  • Content: Threads
  • Order by date
  1. BigTank

    Figure PW-43.1 vs. A-73

    Can someone reconcile 'e' for me here? What is the intention of 'e'? Moment arm? That's what A-73 suggests. If so, PW-43.1 is a terrible visual. -------------------------------- Fitter, happier, more productive
  2. BigTank

    Build 7400 Model Aspect Ratio

    This is a minor problem, but one that is mildly bothering me, nonetheless. So I thought I'd pose the question here since it's not a matter of functionality but one of aesthetics. Since Build 7400, the model visuals have been 'squished' like when viewing television broadcasts at 4:3 aspect...
  3. BigTank

    Sect VIII, Div1, UHX 13, Sy @ T & Sect II-D, Table Y-1

    Section VIII, Div 1, UHX 13.3 Nomenclature states for yield stresses: "NOTE: The yield strength shall be taken from Table Y-1 in Section II, Part D. When a yield strength value is not listed in Table Y-1, one may be obtained by using the procedure in Step UG-28(c)(2)3." Could someone please...
  4. BigTank

    B31.1 Branch Ligaments

    Is there a provision in B31.1 that calls on PG-52 or any other section of any other ASME Code in regards to ligaments between multiple branch connections? -------------------------------- Fitter, happier, more productive
  5. BigTank

    Long Shot? Who knows VAG 1.8t management?

    I'm chasing gremlins and need someone with intimate knowledge of the VW 1.8t boost, ignition, valve (cam) timing control, and fuel management. I can't use VAG-COM until I know where to look (and find someone w/ VAG-COM that I can borrow). It's a long shot, but I thought this might be a good...
  6. BigTank

    Section VIII, D1, 2011a Appendix 2

    I see a change indicated for the 2011a to Appendix 2, 2-5, but I cannot find the change. I look at our insurance company's tabulation, search the interwebs and look at other insurance companies tabulations, and I see no reference to a change in 2-5. Does anyone know what was updated there? Is...
  7. BigTank

    Strange 'percolation' of clay through grass

    I'm not sure if this is the correct forum, or if anyone can help with this without seeing a picture (working on it), but there is something strange happening in my mothers lawn. In a roughly 15-foot square area there are small mounds of clay and other fine soil that seem to be produced by a...
  8. BigTank

    SA-240 Table 1, Other Elements

    Specifically, S40910. Question: The 'Other Elements' column has a formula: Ti 6 x (C+N) min, 0.50 max; Cb 0.17 (I want to be sure I understand this formula completely.) This formula means, with C = 0.030, N = 0.030, Ti, min = 6 x (0.030+0.030) = 0.36% Therefore, Ti content is...
  9. BigTank

    For Faro Arm Users

    What is the maximum number of moves you have used for your equipment with repeatable results? Curious... -------------------------------- Fitter, happier, more productive
  10. BigTank

    B16.5 Missing Tolerancing

    Is there an 'industry-standard' accepted tolerance for concentricity between the bolt circle and a slip-on flange I.D.? I cannot find this in B16.5, implied or otherwise. This would be a very useful tolerance for those concerned with fit, and those tolerancing an assembly that uses B16.5...
  11. BigTank

    Section VIII Design Guides et al

    I have a copy of the Pressure Vessel Handbook, but I'm always looking for more detail. What I could really use would be a combination design guide/interpretation (not official ASME versions)/explanation of motivation for Section VIII. I could also use one for Sections I and IV, but not nearly...
  12. BigTank

    Sect VIII Corner Joints

    Is a size-on-size corner joint allowed in a vessel of non-circular cross-section? It appears that with the full-penetration joint option in UG-34, size-on-size is precluded by the 1.2*ts requirement. Can anyone find an exception to this in either UG-34 or UW-13...
  13. BigTank

    Sect. VIII, Appx 13-14 (External P)

    The subject section states 'Rectangular cross-section vessels per Fig. 12-2(a) sketches (1) and (2) subject to external pressure shall meet the following requirements:'... Could one interpret this to cover stayed vessels of rectangular cross section (sketches (7)-(10))as well, perhaps...
  14. BigTank

    Threadolet vs. weld boss vs. ?

    I have a question about terminology/naming of some branch connections I'm sure are very familiar to all of us. I'm also guessing that my company is not the only having experienced this problem. The problem: receiving what Penn Machine (www.pennusa.com) calls a 'weld boss' in place of a...
  15. BigTank

    B16.5, Section VIII, and dual cert. SS

    Consider a flange, SA-182 F304 150# class, having a rating at 1000°F of 20PSI. Now what arrives at your shop is certified as SA-182 F304/304L. If my dual grade philosophy is to consistently use the stress values for the straight grade material when considering pipe and plate, am I justified in...
  16. BigTank

    Weld Strength Paths...v.2.0

    thread794-247823 One year+ later... Please reference the attached thread, with this in mind: I've been able to satisfy myself with just about everything but this: (b) PI/2*mean nozzle dia.*tn*Mod Allowable S How is this the nozzle shear failure capacity portion of failure path 2-2 in Fig...
  17. BigTank

    tr in its various locations in Sect VIII

    This question is general in a sense. I mean to ask it for wherever a required thickness is needed for opening reinforcement, UG-45 nozzle neck thickness, the calculation of an unstayed flat head coefficient 'C', or for coincident ratio, et al. What equation (UG-27 or Appendix 1), what...
  18. BigTank

    UG-27 or Appendix 1

    How does Compress determine whether to use UG-27 or Appendix 1 equations for calculating required thicknesses for, say, nozzle reinforcement calculations and unstayed flat head coefficients? I've seen both used in the nozzle reinforcement area calculations in 2 different models of the same...
  19. BigTank

    UHA-44 value Rf

    Rf=mean radius after forming This question might sound like it has the most obvious answer, but does anyone know this value is calculated? According to Compress, it does not appear to be (spherical radius + the knuckle radius)/2, nor (spherical rad. + 2*the knuckle rad.)/3. When the Code does...
  20. BigTank

    Compress & External Pressure Charts/Tables

    I am having trouble correlating a value for 'A' given by Compress and one looked up (and even interpolated) manually when calculating a shell and ellipsoidal head for external pressure. I was wondering if anyone knows how Compress finds this value? I would assume that the method used for...

Part and Inventory Search

Back
Top