To perform a similar type of analysis, keep the following hints in mind:
For every axisymmetric part of the assembly, define a separate axis of symmetry (SECDATA) before generating nodes around the axis of an axisymmetric section (NAXIS).
Choose an appropriate number of Fourier nodes in the circumferential direction to ensure better accuracy and to minimize computational cost.
The KEYOPT (2) option for the general axisymmetric elements (SOLID272 and SOLID273) controls the number of Fourier nodes in the circumferential direction.
If any part of your model which uses general axisymmetric elements does not have high localized deformation in the circumferential direction, the number of Fourier nodes can be set as low as 3.
In the case of high localized deformation in the circumferential direction, the number of Fourier nodes can be set as high as 12, according to your requirements.
Use a node-to-surface contact pair to connect general axisymmetric elements to standard 3D elements.
Always create target surfaces on standard 3D elements.