ANSYS Mechanical Rigid Body Dynamics


Utilize the power of the rigid dynamics explicit solver for efficient and robust evaluation of mechanical systems containing complex assemblies of interconnected rigid parts undergoing large overall motion. Apply procedures for analysis of machine and mechanism systems such as vehicle suspensions, landing gear assemblies, robotic manipulators, gear trains, amusement rides, engine components, and an innumerable variety of industrial conveyors, drives, indexers, linkages, and the like. Learn the comparative strengths of the explicit and implicit solvers, and how to use both approaches in a connected workflow for a best-of-both-worlds capability.

Learning Outcome

  • Upon successful completion of this course, the student will be able to:
  • Carry out the basic end-to-end rigid body dynamics analysis procedure in Ansys Mechanical.
  • Understand the advantages and disadvantages of using the rigid dynamics explicit solver for analysis problems involving large motion.
  • Demonstrate a basic knowledge of the definition and use of bodies and joints for constructing multibody analysis systems.
  • Construct an analysis system that includes the large motion of both rigid and flexible bodies using the condensed parts.
  • Understanding in a couple of examples how Python can help to further control the joint’s behavior further than the RBD interface
  • Practice the co-simulation capabilities via the pin’s creation in RBD and exporting the FMU which will link to another software. A link with Ansys Twin Builder is shown and practiced.


  • Completion of ANSYS Mechanical Linear and Nonlinear Dynamics is required.
  • A good knowledge with Python and Ansys Twin Builder is a big plus.

Target Audience: Primarily Mechanical Engineers, including Mechanism and Machine Design Engineers, Automotive Engineers, Aerospace Engineers, Dynamics Engineers, Consumer Products Engineers, and similar sub disciplines.

Teaching Method: Lectures and practical hands-on workshops to validate acquired knowledge.

Learning Options: Training materials for this course are available with a ANSYS Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. Please contact us.

ANSYS Mechanical Rigid Body Dynamics


Agenda :

This is a 2-day live classroom course covering both lectures and workshops. For virtual training, this course is covered over 4 x 2-hour sessions lectures only.

Virtual Classroom Session 1 / Live Classroom Day 1

  • Module 01: Introduction
  • Introduction to the Rigid Dynamics Explicit Solver
  • Overview the Rigid Body Analysis Procedure
  • Rigid Solver versus Flexible Solver
  • Module 02: Procedure
  • Preprocessing
  • Solution Settings
  • Postprocessing
  • Constraint Equations
  • Export of Motion Loads
  • Variable Loads
  • Workshop 2.1: Rigid Body Basics
  • Workshop 2.2: Applying Motion Loads in Structural Analysis

Virtual Classroom Session 2 / Live Classroom Day 1

  • Module 03: Connections - Joints
  • Joint Types
  • Joint Creation
  • Joint Coordinate Systems
  • Stops and Locks
  • DOF Checker and Redundancy Analysis
  • Joint Configuration and Assembly
  • Joints Stiffness and Damping
  • Springs
  • Workshop 3.1: Using Assemble and Stops Features
  • Workshop 3.2: Constraint Equations

Virtual Classroom Session 3 / Live Classroom Day 2

  • Module 04: Connections – Contacts
  • RBD Contact Server
  • Mesh Settings
  • Contact Detection
  • Generalized Contact
  • Typical Use Case
  • Workshop 4.1: Gear Backlash
  • Module 05: Transient Multibody Analysis with Condensed Part(s)
  • Part Specification in RBD
  • Introduction to Condensed Part
  • Workflow of CMS
  • Expansion Settings
  • Damping with CMS
  • Initial Conditions
  • Loads, supports and joint Conditions
  • Analysis Settings and Reviewing Results
  • Workshop 5.1: Transient RBD Analysis of an Engine Assembly with CMS

Virtual Classroom Session 4 / Live Classroom Day 2

  • Module 06: RBD with Python
  • Some Python Commands available in RBD
  • Examples on how to use Python to change the joint’s behavior for instance
  • Workshop 6.1: Position of the Center of Gravity
  • Module 07: Co-Simulation with RBD
  • System Definition
  • Overview of Ansys Twin Builder
  • FMI standard
  • Pins creation in RBD
  • Import FMU to Twin Builder
  • General Workflow
  • RBD/Twin Builder Time Stepping
  • Postprocessing in Twin Builder
  • Workshop 7.1: Pong


Filter By Country :
Date/Time Duration Event Type Location Language Class Cost
October 20, 2020
10:30 - 12:30   CEST (GMT +2)
October 20, 2020 4 sessions
Oct 20-23
Virtual Virtual - WebEx English Subscription Only Register  ›

Sorry, no classes were found that matched your country selection. Subscribe today to take online courses.

Sorry, no classes were found that matched your country selection. Please try again or Subscribe today to take online courses.

click below to start a conversation with ANSYS

Contact Us
Contact Us