What is a kinematic chain in mechanical design?

A kinematic chain refers to a system composed of individual links connected by joints that allow relative motion between them. The primary function of a kinematic chain is to convert input movement into output movement through these connections. When driven by external inputs, such as motors or manual force, the links and joints work together to produce desired motions in machinery or devices.

In mechanical design, understanding kinematic chains is essential because they form the basis for many mechanisms, such as robotic arms, linkages, and machines that perform specific tasks. The configuration and movement of the links depend on the type of joints used, which can include rotational, sliding, or a combination, ultimately enabling complex motion generation to achieve specific functions.

This definition highlights the critical role of kinematic chains in mechanical systems, focusing on how they facilitate movement through a structured arrangement of components.