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| Contents | Index |
| Learn more about SimMechanics |
This table summarizes what's new in Version 2.6 (R2007a):
| New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems | Related Documentation at Web Site |
|---|---|---|---|
| Yes | Yes—Details labeled as Compatibility Considerations, below. See also Summary. | Bug
Reports at Web site | No |
New features and changes introduced in this version are
SimMechanics software now depends on and requires Simscape software, the foundation for Physical Modeling products. Simscape software includes common Physical Modeling utilities and block libraries. See Product Overview and the Simscape documentation.
SimMechanics software now features a selection of two Simscape editing modes that allow full or restricted editing of models.
The Restricted mode requires SimMechanics product to be installed, but does not require a license. It allows you to change a limited set of model parameters, but not the blocks or connections, in a SimMechanics model.
The Full mode requires both Simscape and SimMechanics products to be installed. It allows you to change anything in a SimMechanics model.
For more details, see Using the Simscape Editing Mode in Running Mechanical Models.
All SimMechanics blocks in your models must now have resolved block library links. You can neither disable nor break these library links. This is a global Simscape requirement. Consult the Simscape documentation for further details.
If you have an existing SimMechanics model with disabled or broken links from SimMechanics blocks to the SimMechanics block library, you must restore all the broken block library links for your model to be valid.
If you have disabled or broken the SimMechanics library link for blocks that you have customized and want to keep these modified blocks in your model, you must move these modified blocks to your own custom library or libraries, then copy the block instances that you need to your model.
You must still restore the block link to its parent library, whether that parent is the SimMechanics block library or your own.
These SimMechanics parameters are now tunable from their respective block dialogs:
The Gravity vector field of the Machine Environment block.
All three parameter fields of the Body Spring & Damper block.
See Limitations in Running Mechanical Models for more about SimMechanics tunable parameters and the Simulink documentation for tunable parameters in general.
Five new demos have been added.
The mech_gimbal_transform demo shows the equivalence of a body's angular motion as measured by Joint Sensors and as measured by Body Sensors.
Two demos illustrate how to model limits or clearance on joint motion:
The first illustrates limits on translational motion; the second, limits on rotational motion.
Two demos simulate a mixture of deterministic and random forces with a model of a micromechanical damped linear oscillator:
The first model has no controller; the second, a control force in addition to the damped spring and white noise forces.
A new MATLAB Digest article explains how to model mechanical constraints with SimMechanics blocks. The article uses a set of four existing SimMechanics demos as illustrations.
 | Version 2.7 (R2007b) SimMechanics Software | Version 2.5 (R2006b) SimMechanics Software |  |
Learn more about Simulink through this collection of videos, articles, technical literature and the Getting Started with Simulink Guide.
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