This tutorial is from our online seminar held in March 2013.

This seminar is on multi-point constraints or R-elements (e.g., RBE2 and RBE3) and the CBUSH.

These elegantly formulated elements will be discussed from a theoretical background and then demonstrated through a number of examples.  The goal of this seminar is to provide the Nastran analyst with a comfortable foundation in how these elements can be used accurately and efficiently.  It has been our experience that in the modeling of bolted connections or non-structural discrete masses or just providing a flexible connection between adjacent parts, the right choice of connection element can be very important in the downstream results interpolation.


Connections 2013: RBE2, RBE3 and CBUSH Elements and how amazingly useful they are for FEA modeling

PDF of Making Efficient Connections with RBE2 RBE3 Constraint Equations and CBUSH Elements (4.2 MB PDF)

Model files (.5 MB ZIP)