Ram Gopisetti
Ansys Employee

Hi , what version of ANSYS are your working on, with 2022 r1 there is an support for Cylindrical csys can you check it?, but it is not supported in the remote displacement BC, why not use pressue BC to achive it, and be realisitic about the loading too 26-8 mm is pretty high, check the following defrom using the pressure BC 

cheers,Ram