Interactions are objects that you create to model mechanical
relationships between surfaces that are in contact or closely spaced.
Mere physical proximity of two surfaces on an assembly is not
enough to indicate any type of interaction between the surfaces.
You will define the following interactions:
An interaction called HingePin-hole
that defines the contact between the part instance
Hinge-hole-1 and the pin.
An interaction called HingePin-solid
that defines the contact between the part instance
Hinge-solid-1 and the pin.
An interaction called Flanges that
defines the contact between the two flanges.
Each of these interactions requires a reference to an interaction
property. Interaction properties are collections of information that help you
to define certain types of interactions. You will create a mechanical
interaction property that describes the tangential and normal behavior between
all surfaces as frictionless. You will name this property
NoFric and use it in all three of the
interactions.