Simulation is more than Software

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Structural mechanics
Structural mechanics

Multibody Dynamics with Ansys Motion


Training Basic

Faster, more efficient, quieter – learn how to efficiently simulate complex motion sequences. This training is offered as a 2-day course.

2 days


Software used
Ansys Mechanical, Ansys Motion

  • Using MBS models to simulate complex motion sequences
  • Rapid calculation of bearing loads and requisite drive torques
  • Handling joints and nonlinear contacts in Ansys Motion
  • How to take into account flexible and thus vibratory bodies


In the development of complex systems such as crankshafts, transmissions, or even entire power trains, aspects such as system functions, loads, smoothness, and durability are of great importance. Transient processes like these are typically examined using multibody simulation (MBS, also multi-body dynamics, MBD). Ansys Motion, a high-end solution, is an effective tool for engineers in this regard. With the Workbench interface, the user now has a powerful postprocessor in addition to the solver.

In this training, you will see many practical examples of how you can optimally use Ansys Motion with its own pre- and post-processor. You will learn how to create and interpret MBS models for the simulation of complex motion sequences, how to take flexible bodies into account, and how to quickly calculate bearing loads and drive torques. This will enable you to identify design deficits and kinematic constraints. The entire model setup and simulation are carried out in Workbench. Post-processing is done in Motion’s own postprocessor.

Our course is suitable for both experienced engineers and complete beginners and offers a comprehensive introduction to Ansys Motion.

Detailed agenda for this 2-day training

Day 1

01 Multi-body Simulation with Ansys Motion

  • Overview of types of dynamic analysis
  • Areas of application for Ansys Motion
  • Typical input and result variables
  • Underlying concept of mathematical formulation
  • Helicopter rotor head demonstrator: simulation of complex dynamic systems

02 Model Set-up and Simulation

  • Overview of simple joint definitions
  • Simple spring and damper elements
  • Assembly of components for simulation
  • Boundary conditions and loads
  • Target analysis settings
  • Exercise: building a transmission mechanism and checking transmission behavior

03 From Simulation to Result

  • Managing result files
  • Visualization using animations and contour plots
  • Creating and editing diagrams (FFT, integration, ...)
  • Best practice tips and presentation of results
  • Exercise: determining the opening and holding forces of an engine hood

04 Extended Model Structure

  • Measured-variable-dependent loads
  • Definition and meaning of coupling equations
  • Stops and engagement functions in joints
  • Bearings (machine elements)
  • Workshop: determining the drive power of an axial pump

Day 2

05 Non-linear Contacts

  • Application field: joints vs. contacts
  • Implementation of contacts in Ansys Motion
  • Best practice in dealing with contacts
  • Exercise: dynamic systems behavior of a cycloidal gearbox

06 Linear Flexible Bodies

  • CMS (Component Mode Synthesis) as a reduction method
  • Applications and limitations of the method
  • Implementation in Workbench
  • Vibration behavior of elastic components
  • Exercise: improving the positioning accuracy of a pick-and-place machine

07 Nonlinear Flexible Bodies

  • Application scenarios
  • Numerical method
  • Allowing for nonlinear rubber elements
  • Contour disc exercise: opening behavior of a valve train

08 Interfaces to the Ansys Product Family

  • Project-page-based parameter studies
  • Importing force from Ansys Maxwell
  • Co-simulation with Ansys Twin Builder
  • Co-simulation exercise: designing a controller for a self-balancing scooter

Your Trainers

Ralph Rauchheld
CAE Engineer, CADFEM Germany GmbH, Chemnitz
Bernard Feuillard
Engineering Services, CADFEM (Suisse) AG, Renens

Placement in the CADFEM Learning Pathway

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Do you have questions on the training?

When will I receive the final confirmation for my training booking?

Straight after you sign up, an automatic confirmation of receipt will be sent to the email addresses you provided. Once you have successfully verified the data you provided, you will receive your personalized sign-up confirmation, containing further information on course fees, the billing address, etc., by email within two to three working days.  

As soon as the minimum number of attendees has been reached, you will receive a final training confirmation containing further information. If you have booked an on-site training, we recommend that you wait until you have received this final confirmation before booking your travel and accommodation.

If the minimum number of attendees is not reached, we reserve the right to cancel the training seven days before it is due to start at the latest. We are happy to inform you on changing your booking to an alternative date. Please note that we accept no liability for hotel or travel bookings that attendees have already made.

When is the sign-up deadline for a training?

Training places will generally be allocated based on the order in which attendees sign up. For this reason, we always recommend booking for your desired date as early as possible.

As long as a coures still has free places, it can be booked.

At what time do the training courses begin and end?

Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT). 

Head of Support & Training