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[johnscotland]

Hello, 

I am currently in the process of designing a bespoke pressurized ISO tank. 

I have currently hit a stumbling block over the required reinforcements for an eccentric conical reducer situated on the dish end of the vessel. I have been using the ASME rule however i cannot seem to gain a reasonable answer for either the thickness of the reducer or the required reinforcement. 

I have tried both hand calculations and computer simulations.

Also I have to include a manhole in the top of the vessel situated in the middle of the shell, the manhole is to be flush with the shell, i.e. there should be a flat recessed section in the shell.  

I cannot find any information on this type of configuration. 

 

Any help or tips with any of these problems would be much appreciated.