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Ansys Motion
Multibody Dynamics Simulation Software

Ansys Motion, now in the Ansys Mechanical interface, is a third-generation engineering solution based on an advanced multibody dynamics solver. It enables fast and accurate analysis of rigid and flexible bodies, and gives accurate evaluation of physical events through the analysis of the mechanical system as a whole.

Robust Multibody Dynamic System Design with Ansys Motion

Ansys Motion is a completely integrated simulation environment for both component and system modeling. It provides fast and accurate analysis for both rigid and flexible bodies, simultaneously, all from a single solver. System motion performance, stress-safety analysis, heat transfer, vibration and fatigue are integral. Ansys Motion is the most robust and advanced simulation solution for multibody dynamic system design.

  • Ansys Motion
  • Ansys Motion
  • Ansys Motion
  • Ansys Motion

Quick Specs

Perform simulations in Ansys Motion in the same interface as your regular structural analysis. One model can be re-used for many purposes, resulting in huge time savings. Specs include the Ansys Motion Links modeler for tracked vehicles, FE Dynamics tools, and more.

  • Multibody Dynamics Analysis
  • Car Toolkit
  • Links Toolkit
  • Drivetrain Toolkit
  • EasyFlex Toolkit
  • Linear
  • FE Dynamics
  • API Development
  • Modal Flex
  • MATLAB Interface
  • SMP and MPP
  • Parametric Gear Creation
  • Libraries of Bearings

January 2024

What's New

In 2024 R1, Ansys Motion includes new drivetrain enhancements, new user-friendly guide messages, and the ability to define motion, magnitude of force, and other complex outputs in Python.

ansys motion r1
Drivetrain Enhancements

New drivetrain enhancements include Tooth Contact Pressure (TCP), Deformation (TCD) calculation, a way to calculate tooth stiffness, and a "tolerance" tab of gear specification. These enhancements provide users with a more accurate and realistic gear performance and durability analysis.

python module
Python Module Updates

With the Python module, users can now define motion, magnitude of force, and other complex outputs, allowing them to automate and improve efficiency.

Guide Messages
Guide Messages

Users can now troubleshoot any solver errors with the help of new user-friendly guide messages, saving them time and frustration when solving complex problems.

Ansys Motion Is A New Paradigm in Flexible Multibody Dynamics (MBD)

Ansys Motion is a next-generation engineering solution based on flexible multibody dynamics. It enables fast and accurate analysis of rigid and flexible bodies within a single solver system. Motion can reduce time-to-market by performing system motion performance, stress safety analysis, vibration analysis and fatigue analysis during the design process across many industrial applications. Motion’s integrated GUI provides a robust modeling environment for component and systems that can be analyzed independently or simultaneously, opening new doors during design and analysis.

Explore more Ansys Motion capabilities below.


Key Features

  • Solver
  • Pre-post Processor
  • MBD Pro
  • FE Dynamics
  • Modal Flex
  • Linear
  • Fatigue
  • MATLAB Interface
  • FMI
  • Drivetrain Toolkit
  • Links Toolkit for Chains and Belts
  • Links Toolkit for Tracks
  • Car Toolkit
  • Easyflex Toolkit
  • CAD Translators

Simulate faster using shared memory parallel processing (SMP) and massive parallel processing (MPP) environments.

Components can be modeled as a single entity consisting of a part file and a mesh file. Part files and mesh files are treated and managed independently, allowing for data reuse in other models.

Post-processor provides fast animation of a system consisting of complicated geometries.

The governing equations of motion are formulated based on a parametric generalized coordinate system. The rigid bodies are connected by joints, primitive constraints, bushings, contacts and user-defined function expressions. Smooth surface-to-surface contact is supported. The surface can be represented by piecewise triangular patches or a NURBS surface.

The solver was originally designed to contain the two different disciplines of MBD and finite element (FE) analysis. Therefore, there are many unique connecting elements of rigid and flexible bodies. Since the numerically stable implicit integration method is used, the solution is free from numerical noise and very smooth and reliable.

Mode shapes are extracted from a finite element program such as Ansys Mechanical and deformation is expressed by the linear combination of the mode shapes. Since it solves reduced modal coordinates, the computation time is short. Modal flexible body and full nodal flexible body can be switched easily and can be solved with other rigid and nodal flexible bodies.

Natural frequencies and modes can be simulated. For the body eigenvalue analysis, the static correction mode will deliver a more accurate solution of a modal flexible body.

These two processes are combined as one in the Ansys Motion fatigue analysis system. The Ansys Motion solver generates the load history and stress history at the same time. The fatigue life can be directly visualized in Ansys Motion post-processor.

System input/output in the Ansys Motion model and Simulink file in MATLAB must be defined.

System input/output in the Ansys Motion model must be defined. Ansys Motion’s FMI is only available as a slave simulator.

It can conduct analyses from the initial design concept through to detailed production models. Waterfall color maps and order tracking data can be produced in the same manner as in a real-world test environment to allow easy comparison of simulation and reality.

Once the path and segment bodies are defined, a chain assembly is automatically created. Path and segment bodies can be a subsystem, part or mesh files. This allows a user to build various types of irregular chains. One window controls all the contact parameters among the segment and path bodies. Connections between two segments can be any kind of force, joint or contact entity.

Track assembly is further simplified to eliminate the picking step of path bodies. The path bodies are automatically searched and used to automatically assemble the track segments. Contact surfaces are automatically defined for the predefined geometries so that contact surfaces do not need to be defined. The predefined geometries have complicated modeling details to represent the real shapes.

Symmetric modeling capabilities and template-based workflows allow users to easily analyze kinematics and compliance (K&C) and ride and handling (R&H) scenarios.

Since the meshing of complex 3D CAD is not needed, it makes flexibility modeling available to all users, even those unfamiliar with meshing technologies. By using the Ansys Motion EasyFlex toolkit, the strain and stress of machine parts with various shapes can be calculated within minutes.

Other CAD data files must be translated through the corresponding CAD translator.


Featured Webinars

On Demand Webinar
Ansys Webinar
Ansys Motion: Multibody Dynamics Solver

Learn how Ansys Motion toolkits allow users working in areas with specific multibody dynamic needs to work faster and more efficiently.

On Demand Webinar
Ansys Webinar
Multibody Dynamics for Gear Noise and Vibration

Learn how to use the Drivetrain Toolkit in Ansys Motion, a pre- and post-processing tool for quick and detailed modeling of geartrains including bearings and housings.


On Demand Webinar
Ansys Webinar
Ansys Motion for Multibody Dynamics

Learn how Ansys Motion can be seamlessly coupled with the in-house systems modeling tools, including Ansys Twin Builder and MathWorks' MATLAB and Simulink

Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

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