calculation of SRN nozzle forging weight 2

[sarawana]

Dear

kindly let me know how to calculate SRN (self reinforcement nozzle) weight calculation.

Thank you

 

[r6155]

I can't believe you're asking this question.

Regards

 

[Christine74]

So in theory you should be able to solve analytically using calculus (set up a double integral using polar coordinates to calculate the volume of each section then multiply by the material density). But I expect that solving this would actually be quite difficult, especially for the "Q-lip" portion (the saddle-shaped part of forging that gets butt-welded to the vessel).

I would suggest that you build a 3D model the forging and to determine the volume. TEMA standards provide weight densities of most of the commonly used alloys. Barring that, you could always ask your supplier to provide the estimated weight.


-Christine

 

[r6155]

Pencil and paper, calculator and watch: maximum 5 minutes.

Regards

 

[Christine74]

Put your money where your mouth is r6155. 5 minutes to calculate the volume of the Q-lip forging, and show your work.

Go!

(I'm not holding my breath).


-Christine

 

[sarawana]

Thank you Mr.Christine74 for your valuable information. Is there any weight software or manual calculation for irregular shape elements?

 

[yuun]

Too complicated！
beyond my ability！
Sorry，I can't help you.

 

[SnTMan]

Well, nice try anyway

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[r6155]

Well, this is a day job at the pressure vessel manufacturer.
See Pressure Vessel Manual - Megyesy 10ed.
Part II- Geometry and layout - Intersections.

Regards

 

[yuun]

I think he needs the exact value, not the approximation.
Approximate value is easy, maximum 3 minutes.

 

[r6155]

I don't know what need (OP), but the exact weight doesn't make sense in this example.
Accuracy is only defined with a digital weight scale plus the tolerance of this instrument.

Regards