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  1. nikkuppi

    Analyis of Facade

    @ Klaus Did I anywhere mention that I am designing an Aeroplane like this! I believe this platform is for serious Engineers! @bridgebuster Thank you very much. Regards Nidhin
  2. nikkuppi

    Analyis of Facade

    Hi, I came across an interesting structure (please see attached figure)which need to be analyzed. I am sure that it is very simple for you guys but bit confusing for me as beginner in this field. Please support with some sample calculation. Thanks and Regards Nidhin
  3. nikkuppi

    Antena Cut out and doubler installation at crown area

    Dear All, I am currently working on static analysis for cut out- antenna equipment (no aerodynamic loads )repair by doubler. The current design is with a doubler of same thickness as skin and trippler of 1 gauge more than that. The doubler extend to the next stringer bays with a 4 rows of...
  4. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    Thank you everyone. :-)
  5. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    @ rb1957 : I do not have Flabels and unfortunately very less time to get it ordered. Could you please share the respective chapter. Thanks in Advance Nidhin
  6. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    Dear All, Could anyone please share the "Flabel" , sorry I do not have this (may be the relevant section). @LiftDivergergence, yes, it is under Vertical Tail. Any idea about Safarian approach (tensile loads due to Fuselage bending)? How to consider the crash loads. to be applied as Nx?
  7. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    Then the classic calculation for bi-axial load and shear? Don't we need to consider the loss of skin due to rivet holes?
  8. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    Thank you all for the explanations. Sorry for late reply as I was sick for quite few days. Coming to the static justification of the cut out; As in SRM, a skin repair with doubler is justified for skin longitudinal and circumferential stress as well as rivet justification (bearing). Is that...
  9. nikkuppi

    Crown Feed thorugh skin cut out with doubler

  10. nikkuppi

    Crown Feed thorugh skin cut out with doubler

    Hi All, Could anyone suggest a proper guideline for crown feed though skin cut out with doubler design and analysis. I checked in Nieu und Bruhn and did not find anything exact. Mostly only shear loads considered. Please support. N.B: Pic attached Thanks and Regards Nidhin
  11. nikkuppi

    Thermal Analysis (Steady State, Transient and Structural) Result interpretation

    HI, I was not asking, WHy thermal analysis is done? Please try to interpret what I was asking. How thermal stresses can be used to interpret the results? In design point of view. Is it possible to get exactly thermal stress from the analysis? Is there any way to find it out from Temperature...
  12. nikkuppi

    Thermal Analysis (Steady State, Transient and Structural) Result interpretation

    Hi , COuld you please let me know how the reuslts from Thermal analsys can be interpreted and how it can be used?. I am using MSC/Patran and Nastran. After Analysis, I have got good plots, contours, curves etc. But what exactly we get from this plot. Just heat transfer? what we can make out...

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