Connection of Shells to Solid

Hello,

I have a model in which a shell plate is connected to Solids. To account for the rotational degrees of freedom of the solid elements, additional membrane elements wer created, which should prevent the solids from rotating. There are several issues related to this model.
1) Can you please describe a proper way to define the membrane shell elements on top of the solids?
2) The deformation in the analysis is too large (meaning the solid structure is rotating). Can you please advice how to properly define the connection between shells and solids to prevent the rotation?