What's New in Inspire Motion 2022

Inspire Motion 2022 has now been released as part of Inspire, and includes the following new features and enhancements:

State Dependent Inputs 

Users can now assign non-time dependent inputs to motors and actuators that are dependent on the state of motors, actuators, systems, or linear or angular measures. For example, torque can be applied to a motor that is a function of speed, or a force can be applied to an actuator that is a function of angular displacement. 

Proximity  

A new Proximity tool has been added, allowing you to monitor the proximity between two parts before or during a simulation to detect when contact or interference may occur. End points are color-coded according to the part proximity (finite distance, touching, interfering). You can plot the “State” to see points in time of interference. 

Find Initial Intersections 

The Motion Contacts guide bar now includes an option to check for, and step through, initial intersections (overlaps) between contacting parts, which may present difficulties in solving the model. Intersecting regions between parts are highlighted in red, indicating where geometry corrections may need to be made. 

Active Contact Iteration (ACI) 

In certain models that involve contact between parts, the quality of the force results can depend on the frequency of updating of the matrix of partial derivatives of the solution (Jacobian matrix). In models where there may be a large time step or a high contact stiffness relative to contact damping, the contact forces may appear noisy. ACI performs additional refinement to the solution for contact events, helping to reduce noise due to contact forces and provide more accurate force results overall. 

Depending on the application type, ACI may improve speed or accuracy or both. You may obtain more accurate results and experience shorter run times in certain contact models. However, in some models, using ACI may also increase the simulation time slightly. 

By default, ACI is turned on in models created in version 2022 and later, and it is turned off in models created earlier than version 2022. 

The full release notes are available at:

https://2022.help.altair.com/2022/inspire/whatsnew/Inspire_2022_ReleaseNotes_English.pdf