The Multibody Dynamics Module User’s Guide gets you started with modeling using COMSOL Multiphysics. The information in this guide is specific to this module. Instructions how to use COMSOL Multiphysics in general are included with the
COMSOL Multiphysics Reference Manual.
The Multibody Dynamics Modeling chapter outlines the modeling guidelines for the Multibody Dynamics interface.
The Multibody Dynamics Model section describes various elements of a multibody system. The
Joints section describes the types of joints and the additional functionality available. The
Attachments section describes the use and formulation of attachment features. The
Cam–Follower section describes the formulation of cam–follower connection. The
Springs and Dampers section describes the formulation of an elastic spring and a viscous damper. The
Gears section describes the type of gears, gear pairs, and the additional functionality available for modeling of gears. The
Gear Geometries section describes the parameterized gear geometries available. The
Chain Drive section describes the modeling of roller chain sprocket assembly. The
Chain Geometries section describes the parameterized chain-sprocket geometries available. The section on
Initialization in Time-Dependent Studies describes the consistent initialization in a multibody system. The
Geometric Nonlinearity section talks about the cases when a geometric nonlinear analysis is required. In the end,
Multiphysics Couplings section describes all the built-in multiphysics coupling features available for multibody dynamics.
The Multibody Dynamics Theory chapter outlines the theory for the Multibody Dynamics interface. The
Joint Theory section describes the types of joints and the additional functionality available. The
Cam–Follower Theory section describes the theory for the cam and follower connection. The
Gear Theory and
Gear Pair Theory sections describe the theory of all the gear types and gear pair types respectively. In the end, the
Rigid Body Contact Theory section describes the theory of modeling rigid body contact and friction between standard shaped rigid bodies.
The Multibody Dynamics chapter describes all the physics nodes available in
The Multibody Dynamics Interface. Joints, spring-dampers, cam–followers, attachments, rigid domains, base motions, initial values, gears, gear pairs, chain drives, and rigid body contacts are described in detail. The rest of the physics nodes are described in the
Structural Mechanics Module User’s Guide.
The Lumped Mechanical System chapter describes all the physics nodes available in
The Lumped Mechanical System Interface. The corresponding theory for all the physics nodes is described in the
Theory for the Lumped Mechanical System Interface section.
