Since your anchors have stiffness values computed and are not "infinitely rigid", they will not prevent loads and displacements from being transmitted across the "anchor" point. That is why you are seeing a difference between your continous and partial models.
I missed this
important point in the post above. Ed is exactly right, if the anchors are not rigid, they will transmit forces and moments to the connecting pipe.
Even if you do change the stiffness to rigid, watch the frequencies as I previously mentioned.
Previous Topic
Index
