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Appendix
Get help for the optional libraries that are available in the Extension Manager.
Multibody Processing Library
The Multibody Processing library supports multibody-related, multi-disciplinary workflows and system-level vibration analysis in time and frequency domains.
dsafrfplot
Plot MotionSolve Dynamic Signal Analysis (DSA) using Frequency Response Functions (FRFs) computed from the MotionSolve XML and related A, B, C, D state matrices.

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Appendix
Get help for the optional libraries that are available in the Extension Manager.
- Multibody Processing Library
  The Multibody Processing library supports multibody-related, multi-disciplinary workflows and system-level vibration analysis in time and frequency domains.
  - cpsdplot
    Plot MotionSolve Frequency Response Functions (FRFs) estimated from output/input signals cpsd versus input signals pwelch.
  - dsacpsdplot
    Plot MotionSolve Dynamic Signal Analysis (DSA) result component in time and frequency domain.
  - dsafftplot
    Plot MotionSolve Frequency Response Functions (FRFs) computed from MotionSolve XML and related A, B, C, D state matrices.
  - dsafrfplot
    Plot MotionSolve Dynamic Signal Analysis (DSA) using Frequency Response Functions (FRFs) computed from the MotionSolve XML and related A, B, C, D state matrices.
  - fftplot
    Plot MotionSolve Fast Fourier Transforms (FFTs) computed from output signals.
  - frfplot
    Plot MotionSolve Frequency Response Functions (FRFs) computed from XML and related A,B,C,D state matrices.
  - mbcrossvalue
    Extract value crossing data that is used to detect time of events in order to compute some response over a reduced time domain by leveraging the corresponding index range.
  - mbindexatvalue
    Extract value crossing data, used to detect the index of the time of events in order to compute some response over a reduced time domain by leveraging the corresponding index range.
  - mbipsd
    Compute Inverse Power Spectral Density (PSD) that is used to define an excitation time domain signal from a PSD profile.
  - pulley
    Define a pulley component to parametrize the definition of a cable system.
  - tangent
    Define a tangent line to parametrize the definition of a cable system.
  - winch
    Define a winch component to parametrize the definition of a cable system.
Frequently Asked Questions
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dsafrfplot

Plot MotionSolve Dynamic Signal Analysis (DSA) using Frequency Response Functions (FRFs) computed from the MotionSolve XML and related A, B, C, D state matrices.

Attention: Valid only with Altair Product Integration Extension

Syntax

dsafrfplot(par,val)

dsafrfplot(par,val,few)

Inputs

par: Dataset member name.; Type: char; Dimension: string | cell
val: Values.; Type: char; Dimension: string | cell
few: Frequency exponent window in a 2-element vector form.; Type: double; Dimension: vector

Examples

Example with results from a rotating blade model.

dsafrfplot('./RotatingBlade/blade_1.dat.rpm',{'180';'300';'420'},[0.2,10]);

Comments

This function creates a comparison plot of MotionView dsarun results in frequency domain by computing FRF between multiple plant outputs and plant inputs (leveraging A,B,C,D state matrices output).