thread775-227137 Hi guys, Sorry

[Mr.BatchRun]

thread775-227137

Hi guys,
Sorry to bring up this topic again, but there is so much to talk about with the NEMA SM23, while waiting for my company to buy the SM24, and in the hope, I fear in vain, that the SM24 will clarify all my doubts.

My question concerns an operation that CII does when analysing equipment.

Why, if I set the compressor's cosine direction X=1 (as per the Caesar model), does it reverse the forces Fx and Fz in the output? It almost seems to change the reference system. At this point, the NEMA equipment analysis of caesar, what reference system does it refer to ?

Thanks to those who have the time and inclination to answer.

‘Have the courage to do the run without doing the error check first’.
Confucius.

 

[StressGuy]

So, first off, there is no NEMA SM-23 anymore. The API codes have all adopted their versions of the NEMA methodology for turbines and compressors. NEMA SM-24 isn't a replacement for SM-23, it addressed different machinery.

That said, I see V14 still has an SM-23 section in the equipment analysis module - is that what you're asking about?



Edward L. Klein
Pipe Stress Engineer
Houston, Texas

"All the world is a Spring"

All opinions expressed here are my own and not my company's.

 

[Mr.BatchRun]

Hi StressGuy,

thanks for your answer and clarification about API and Nema.

Yes, I'm talking about the SM-23 module of Caesar, Equipment Analysis section.

Thanks

‘Have the courage to do the run without doing the error check first’.
Confucius