Hinge Joint
Use the Hinge Joint node for 2D and 3D components to create a joint between two components such that they are free to rotate relative to each other about the joint axis at the center of joint.
The Constraints, Locking, Spring and Damper, Prescribed Motion, Applied Force and Moment, and Friction subnodes can be added to modify the properties of the joint.
See Prismatic Joint for all settings — Attachment Selection, Center of Joint, Joint Elasticity, Joint Forces and Moments, and Sketch. For 3D components, also see Axis of Joint.
Hinge Joint Theory
Location in User Interface
Context Menus
 Multibody Dynamics>Joints>Hinge Joint
Ribbon
Physics tab with Multibody Dynamics selected:
Global>Joints>Hinge Joint