Pin Connectors

An assembly consists of multiple parts connected to each other with pins, bolts, screws, or springs. Examples of assemblies with pins include laptops, scissors lifts, pliers, and actuators. To model the behavior of such assemblies, traditionally, you have to create each pin geometry and apply contact conditions between the pins and their contacting faces, a computationally expensive approach.

In practical applications, often you might want to know the effects of pins on their adjacent parts or the assembly rather than the stress distribution on the pins themselves. For such applications,instead of the traditional approach, you can use pin connectors to represent the behavior of the pins in the assembly virtually.

For example, in the following plier assembly, you can define a pin connector using cylindrical faces that rotate against the pin and go through the two hands. You must allow the cylindrical faces to rotate against the pin but prevent them from moving axially with respect to each other.

When to Use Pin Connectors

You can define one pin connector that acts as a hinge to connect the three plates.
You can define a pin connector between the cylindrical faces.