Dear Sir,
1. the top is 12mm thk, bottom is 10mm thk, lower shell(2160mm high) 9.5mm thk,upper shell (2500mm high)6.8mm thk, total shell high is 4660mm, diametre is 5000mm, how to identify the casing? We should choose the inside or outside casing to indentify?
2. I have 8 hold down lugs on the tank bottom knuckle, how to add fixture on the lugs?
Thanks!
Eric
regardless of the analysis, choosing inside or outside does not really matter as the assumption in shells is that the thickness is much smaller than other dimensions that the choice of inside or outside does not matter. especially if you use the offset option to realign the shell. sometimes they are chosen inside and outside from convenience or to leverage an edge to edge connection to minimize the number of contact selections to be made.
regarding the lug fixture, you'll have to elaborate on what doesn't work or what you want to learn or physically how it is connected. easiest answer is fixed but that might not match your goals.