Visual Engineering

Visual ODSTM

Visual ODS™ lets you see how a machine or structure is moving by animating Operating Deflection Shapes directly from a set of time waveforms or frequency domain experimental data. VT-620
  • Interactively construct or import a 3D model of your test article
  • Import time waveforms and frequency domain measurements, or acquire them directly from popular multi-channel acquisition hardware
  • Interactive animated display and video recording of Operating Deflection Shapes
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Visual Rapid TestTM

A faster, easier, more flexible, and less costly method to implement than conventional ODS or modal testing methods. Since only the structural responses are acquired, it can be used for ODS testing of operating machinery, or for modal testing using an impactor or multiple shakers. VT-350
  • Uses a chain of connected Transmissibility's: one response measurement divided by another. The chain is then seeded with an Auto spectrum, Cross spectrum or Frequency Response Function (FRF), thus providing a single-reference set of ODS FRFs, Cross spectra, or FRFs from which ODS's and mode shapes can be extracted.
  • This testing method doesn't require a fixed reference sensor, thus large or small structures

Video ProcessingTM

This package includes all the features of a Visual ODS Pro™ package and adds all the tools you need for post-processing video recordings of machine or structural vibration. You can display, analyze & archive the time waveforms & frequency spectra extracted for a video, and then record clear color videos of the ODS animation created from the waveforms or spectra. VT-450
  • Extracts accurate time waveforms of the surface motion in the video
  • Unwanted portions can be cropped from the video
  • ODS animation either from the time waveforms or frequency spectra
  • Magnitude & phase of the ODS displayed for selected points
  • Improve the brightness & contrast in the ODS video
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Visual ModalTM

This package includes all the features of a Visual ODS Pro™ package and contains all the basic tools you need for extracting modal parameters from experimental vibration measurements. By comparing the results from several different curve fitting methods, you can accurately identify the frequency, damping, and mode shape of the modes of a structure from experimental data. VT-570
  • Single degree-of-freedom (SDOF) & multi-degree-of-freedom (MDOF) curve fitting
  • Local & global FRF-based curve fitting
  • Two different mode indicators for counting resonance peaks
  • The exclusive Quick Fit method extracts all modal parameters in one step
  • Modal Assurance Criterion (MAC), Shape Difference Indicator (SDI), & Participation between mode shapes

Visual Modal ProTM

This package contains all the features of a Visual Modal™ package plus advanced multi-reference curve fitting methods for extracting the modal parameters of closely coupled modes, repeated roots, and local modes from multi-reference experimental data. It also includes a stability diagram and curve fitting methods for identifying modes that cannot counted from the resonance peaks on mode indicator curves. VT-550
  • Stability diagram with a choice of three different curve fitting methods
  • Multi-Reference Quick Fit extracts all modal parameters in one step
  • Choice of two Multi-Reference Mode Indicators
  • Shape Phase Normalization for comparison with FEA normal mode shapes
  • Poles plot, shape Complexity plot, Magnitude Ranking plots

Visual SDM ProTM

This package adds Structural Dynamics Modification (SDM) features to a Visual Modal Pro™ package. With it, you can extract modal shapes from experimental data using advanced curve fitting techniques, and then use the mode shapes to explore the effects of a wide variety of physical changes to a structure without having to make the actual physical changes. VT-560
  • Multi reference curve fitting including the exclusive Multi-Reference Quick Fit method
  • Modifications using FEA masses, springs & damper elements, rods & bar elements, triangle & quad plate elements, prisms, tetras & brick elements
  • Sub structuring 🡺 modeling the attachment of two or more structures together
  • Tuned Absorbers 🡺 suppress resonances with mass-spring-damper vibration absorbers
  • Modal Sensitivity 🡺 calculate and order thousands of modifications required to change the properties of one or more resonances to prescribed values
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Visual STNTM

This package combines all the features of a Visual SDM Pro™ package with those of a Video Processing™ package and includes FEA modeling features. With it, you can extract mode shapes from vibration videos, from experimental vibration data, and from an FEA model. Then, using the mode shapes, you can explore a wide variety of structural modifications. You can also update an FEA model so that its mode shapes more closely match experimental mode shapes. VT-950
  • Video Processing for extracting ODS’s and mode shapes
  • All the curve fitting capabilities of MEscope for extracting mode shapes from experimental data
  • Explore structural modifications using all the SDM tools in MEscope
  • FEA model updating to more closely match FEA with experimental mode shapes

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