Home
Motion
Inspire Motion provides Multibody Simulation (MBS) capabilities to analyze the motion, dynamics, and interactions of interconnected rigid or flexible bodies within a system.
Motion Analyst
The Analyst profile functions as a feature-rich pre-processor, originally inspired by the needs of the automotive industry. Utilizing a hard-point design approach, it provides access to the full suite of MotionSolve features and capabilities. The Analyst profile offers unparalleled flexibility in system modeling and can be highly tailored to specific industry requirements. However, this versatility comes with increased complexity, requiring a higher level of MBD expertise and a specialized mindset for effective use.
Motion Control
Control SISOs in Inspire Motion
Define a linear, time-invariant dynamic system in the Laplace domain with a single input and output.

Welcome
Inspire Release Notes
Discover new features and enhancements in Inspire.
Get Started
New to Inspire? Learn the basics here.
Tutorials
Start using Inspire with our interactive tutorials.
Variables
Create and assign variables to parametrize a model. This allows you to quickly iterate and compare design concepts by tweaking the values of the variables.
Parametric Modeling
Create parametric sketches, geometry, and PolyNURBS with construction history and variables.
Implicit Modeling
Create implicit models with primitives, lattices, point clouds, fields, offsetting, Booleans, inverting, smoothing, morphing, and filleting.
Structures
Set up your model and run a structural analysis or optimization.
Motion
Inspire Motion provides Multibody Simulation (MBS) capabilities to analyze the motion, dynamics, and interactions of interconnected rigid or flexible bodies within a system.
- Motion Designer
  The Designer profile adopts a user-centric approach, prioritizing accessibility and ease of use over complexity. While its feature set is less extensive than that of the Analyst profile, it compensates by streamlining functionality and abstracting complexities through intuitive user interactions. This simplicity empowers users outside the traditional Multibody Dynamics (MBD) community to achieve their objectives efficiently, requiring minimal familiarity with MBD.
- Motion Analyst
  The Analyst profile functions as a feature-rich pre-processor, originally inspired by the needs of the automotive industry. Utilizing a hard-point design approach, it provides access to the full suite of MotionSolve features and capabilities. The Analyst profile offers unparalleled flexibility in system modeling and can be highly tailored to specific industry requirements. However, this versatility comes with increased complexity, requiring a higher level of MBD expertise and a specialized mindset for effective use.
  - Entity Creation
    General workflows to add or edit an entity in Inspire Motion Analyst.
  - Expressions
    Motion Analyst entities support expressions.
  - Pairs and Symmetric Modeling in Inspire Motion
    Inspire Motion supports symmetrical modeling, leveraging geometric or physical symmetry in mechanical systems to simplify both modeling and editing. Symmetrical modeling takes advantage of mirrored or repeated components, allowing systems to be represented with fewer entities and parameters.
  - Attachments
    Attachments offer a means to connect definition-based analyst entities such as systems, analyses, data sets and templates.
  - Motion Create
  - Motion Connections
    Define motion connections by grounding parts and creating rigid groups and joints.
  - Motion Forces
    Apply motors, actuators, springs, and gravity to define the elements for a motion analysis.
  - Flexible Bodies
    Convert rigid bodies or rigid groups to flexible bodies and review flexible body modes before running a motion analysis.
  - Motion References
  - Motion Measurements
  - Motion Control
    - What Are FMUs?
      A Functional Mockup Unit (FMU) is an abstract representation of a dynamic system based on a tool independent standard interface called Functional Mockup Interface (FMI). An FMU enables the exchange of models from a very diverse range of domains and applications.
    - Control SISOs in Inspire Motion
      Define a linear, time-invariant dynamic system in the Laplace domain with a single input and output.
    - State Equations in Inspire Motion
      Define a generic dynamic system characterized by single or multiple inputs, dynamic states, and outputs.
    - Diff Equations in Inspire Motion
      Define a single, first-order, user-defined differential equation that entails a single dynamic state, which is integrated with the rest of the system states.
    - Solver Arrays
      Specify a list of variables or constants that can be referenced by other entities
    - Templates
      Use the Templates tool to create and edit blocks of text that contain data fields and programming instructions.
  - Motion Analysis
    Run a motion analysis, plot the results, and extract the results for use in structural (FE) analysis and optimization.
Fluids
Prepare and run a computational fluid dynamics simulation.
Design Explorer
Evaluate designs by using geometric variables and applying a design-of-experiments (DOE) or optimization method. We recommend fully constraining your sketch when sketch variables are used in the design exploration.
Manufacture
Set up and run a basic porosity or thinning analysis.
Print 3D
Prepare and run an additive manufacturing simulation, and export a file for 3D printing.
Rendering
Adjust the materials and environment of objects in the scene to create a photorealistic image.
Inspire Python API
Learn how to access the Inspire Python API including online help, quick start demos, and the Extension Manager.
Reference
View the glossary, frequently asked questions, and errors and alerts.
Keyboard Shortcuts and Mouse Controls
Learn keyboard shortcuts and mouse controls for common operations.

Control SISOs in Inspire Motion

Define a linear, time-invariant dynamic system in the Laplace domain with a single input and output.

For information on how to add or edit an entity like a control SISO, see Entity Creation.

Control SISOs Properties in Inspire Motion

Descriptions of Control SISOs properties in the Property Editor.


Property	Description
General
Name	Name of the entity
Variable Name	The variable name, a unique identifier string of the entity
ID	A unique identifying integer
Properties
Numerator	Specifies the coefficients of the numerator polynomial of the transfer function in the ascending powers of "s."
Denominator	Specifies the coefficients of the denominator polynomial of the transfer function in the ascending powers of "s."
Static Hold	Turn on this option if the state of the control SISO is not permitted to change during static and quasi-static analysis of the solver. Otherwise, turn off the option.
Input	Set the input to the transfer function of the controller. You can enter initial condition values and enter constant, spline, spline3D, or expression values.
Type	Constant: In the Value (expr) field, enter a constant value of displacement, velocity, or acceleration. Spline: Enter a Spline (value). Select an Interpolation method: AKIMA CUBIC LINEAR QUINTIC Enter a value under Independent variable X. The independent variable should be specified in Templex syntax. Spline3D: Enter a Spline3D (value). Select an Interpolation method: AKIMA CUBIC LINEAR QUINTIC Specify an expression for Independent variable X and Independent variable Z. Expression: Enter an expression.
Use initial conditions	Turn on this option and enter an initial condition value for the control SISO.