SimMechanics Release Notes

Major Bug Fixes

SimMechanics 1.1 includes several bug fixes made since Version 1.0. This section describes the particularly important Version 1.1 bug fixes.

Masked Subsystems

Masked subsystems containing SimMechanics blocks no longer produce errors during simulation.

Corrected English Unit for Inertia

The incorrect English moment of inertia unit lb*ft/s² has been changed to slug*ft². The old, incorrect unit is physically equivalent to the new, correct unit.

Automatically Cut Joints Now Marked

In the Constraints pane of the Mechanical Environment Settings dialog box, the Mark automatically cut joints feature is now implemented.

No Actuating or Sensing Massless Connectors

Sensor and Actuator ports can no longer be added to Massless Connector Joint blocks.

New Utilities Block for Joint Sensor Angular Output

The Joint Sensor block outputs discontinuous angles for rotational motion, bounded in the range (-, +] radians. There is a new block, Continuous Angle, for converting discontinuous angular output to continuous, unbounded angular output, located in the SimMechanics Utilities library.

Simulink Tools Now Supported with SimMechanics

Accelerator Mode and the Model Differences tool now function with SimMechanics blocks.

Visualizing Multiple Machines

SimMechanics now renders and animates multiple independent machines in the same model.

SimMechanics 1.1 Release Notes

Upgrading from an Earlier Release