Multibody Dynamics with Ansys Motion
Faster, more efficient, quieter – learn how to efficiently simulate complex motion sequences. This training is offered as a 2-day course.
Duration
2 days
Prerequisites
None
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
Description
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
Bernard Feuillard
Placement in the CADFEM Learning Pathway
Participant data
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