Ball joints can be modeled with zero-length expansion joints, or with restraints and connecting nodes. When using expansion joints, each ball and socket is defined with one zero-length expansion joint having rigid axial and transverse stiffnesses and zero bending and torsional stiffnesses.
If torsional stiffness is small, use a value of 1.0.
Results are invalid for large rotatioN.
Method 1
Zero-Length Expansion Joint
Modeling a ball joint between nodes 20 and 21 Ball Joint Diagram Node-CNode Model |
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Method 2
Axial, Translational Restraints
Modeling a ball joint between nodes 20 and 21 Ball Joint Diagram Node-CNode Model |
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