COMSOL Multiphysics^® 6.3 Release Highlights

For users of the Multibody Dynamics Module, COMSOL Multiphysics^® version 6.3 introduces new functionality for modeling friction in a cam-follower connection, new features for prescribing velocity and acceleration of elastic bodies, and functionality to measure relative values of any quantity between two selected points. Read more about these updates below.

Friction in Cam-Followers

In cam-followers, the frictional loss that arises due to the interaction between the cam and the follower surfaces often leads to loss of energy. The new Friction subnode under the Cam-Follower node can be used to model frictional losses in a cam-follower system. The friction force is modeled using a smooth and numerically robust continuous friction law that is available for time-dependent studies.

Prescribed Velocity and Prescribed Acceleration

It is now possible to specify the velocity or acceleration of an elastic domain or a boundary in a multibody simulation by using the new Prescribed Velocity and Prescribed Acceleration features. These features can be used to prescribe velocity or acceleration data in one or more directions in time-dependent and frequency studies. The harmonic variation of the prescribed quantity in a frequency domain analysis of perturbation type can also be included.

Measure Relative Values

For multibody systems, a new Measure node makes it easy to compute the relative displacement, velocity, acceleration, or any other quantities between two selected points in a given coordinate system. A set of built-in variables are available under Result Templates for postprocessing.

New Tutorial Model

COMSOL Multiphysics^® version 6.3 brings a new tutorial model to the Multibody Dynamics Module.