Multibody dynamics (MBD) is a field of engineering that studies the motion and interaction of interconnected rigid or flexible bodies. It focuses on how these bodies move in response to forces, constraints, and their own dynamics. MBD is essential for analyzing complex systems like vehicles, robots, and machinery, where multiple components work together. In MBD simulations, engineers use mathematical models to predict how systems behave under various conditions. This helps in optimizing designs and improving performance. Tools and software for MBD, such as ADAMS and Simpack, allow for visualizing and analyzing the motion of systems, making it easier to identify potential issues before physical prototypes are built.