I have a hex mesh to which I need to apply a moment. I made the hex elements RBODY. I am using 2017.2. I created RBE2 elements to apply the moment, but when I check the analysis I get the following error. I tried to modify the RBE2 but could not figure out the dependent and independent nodes selection.
*** ERROR # 2975 ***
The RBODY with reference grid ID 332040 is constrained by more
than six degree of freedom.
