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Simcenter Testlab

Siemens Experimenter Siemens Experimenter
Siemens Experimenter

 

What is Simcenter Testlab?

 

Simcenter Testlab (formerly called LMS Test.Lab) is a data acquisition and analysis software for noise, vibration, and durability testing (Figure 1).

 

simcenter_testlab_overview.gifFigure 1: Simcenter Testlab software modules include acoustic, modal analysis, transfer path analysis, closed loop vibration control, and more...

Simcenter Testlab software:

 

This introduction to Simcenter Testlab includes the following sections:

   1.  Types of Tests that can be performed with Simcenter Testlab

        1.1 Structural Dynamics

        1.2 Acoustic Testing

        1.3 Transfer Path Analysis

        1.4 Rotating Machinery 

        1.5 Durability Testing

        1.6 Vibration Control

        1.7 High-Speed Testing

   2. Key Features of Simcenter Testlab

        2.1 Simcenter Testlab Neo: Displays and Guide Me

        2.2 Simcenter Testlab: Workflows

        2.3 Processing while Acquiring

        2.4 Data Analysis

        2.5 Active Pictures

        2.6 Simulation and Test integration

    3. How to get Signals into Simcenter Testlab?

    4. File Formats supported by Simcenter Testlab

    5. Simcenter Testlab Licensing

    6. List of Simcenter Testlab articles

 

1.  Types of Tests that can be performed with Simcenter Testlab?

1.1 Structural Dynamics Testing

Simcenter Testlab can be used for identifying the dynamic behavior of structures (Figure 2).

 

simcenter_impact8.gifFigure 2: Simcenter Testlab for structural dynamics testing.

Structural dynamics capabilities of Simcenter Testlab include:

 

1.2 Acoustic Testing

Simcenter Testlab acoustic testing ranges from microphone recordings, material testing, sound metric assessments, to sound source localization (Figure 3).

 

simcenter_acoustic.gifFigure 3: Simcenter Testlab acoustic capabilities span from binaural recordings, to sound intensity, to material testing, to sound source localization.

Acoustic capabilities include:

 

1.3 Transfer Path Analysis

Siemens leverages the source-path-receiver (or source-transmitter-receiver) approach to vibro-acoustic issues. Noise and vibration could be structural, airborne, or a combination of these, and have multiple sources, paths, receivers, and amplifiers (Figure 4).

 

simcenter_tpa.gifFigure 4: Uncover the greatest contributors of unwanted noise or vibration with Simcenter Testlab Transfer Path Analysis.

Simcenter Testlab Transfer Path Analysis offers solutions for:

  • Single or multi-reference (ex. road-noise) transfer path analysis (TPA).
  • Q-source exciters for quick reciprocal FRF measurements.
  • Time-domain TPA for interactive listening of paths.
  • Operational path analysis.
  • Blocked force and component transfer path analysis.

 

1.4 Rotating Machinery

Orders, torsionals, balancing issues?  Simcenter Testlab Signature Testing module can be used to analyze rotating machinery dynamics issues (Figure 5).

 

simcenter_rotating.gifFigure 5: Gain insight into both lab and field based rotating machinery dynamics with Simcenter Testlab Signature.

The following options are available to analyze rotating machinery dynamic issues:

See the article list at the end of this page for more rotating machinery analysis options.

 

1.5 Durability Testing

How long will my product last?  Simcenter Testlab Durability can be used for the acquisition and analysis of loads (Figure 6).

 

simcenter_durability.gifFigure 6: Road-load durability testing in the lab and field utilizing Simcenter SCADAS Mobile acquisition hardware.

Simcenter Testlab durability testing spans from acquisiton to analysis:

 

1.6 Vibration Control and Environmental Testing

Vibration Control testing is used for the certification and qualification of products and components, to ensure they survive and operate in harsh environments (Figure 7).

 

simcenter_vibco.gifFigure 7: Shock, random, sine, sine on random, sine dwell, acoustic control, etc are vibration control modes available in Simcenter Testlab.

Simcenter Testlab modules for vibration control include:

 

1.7 High-Speed Throughput Testing

High Speed Throughput Testing is used for acquiring large amounts of time data, typically with high-channel acquisition systems. Typical examples include turbine testing, jet-engine testing, and wind tunnel testing (Figure 8).

 

simcenter_highspeed.gifFigure 8:High speed throughput systems are used in demanding application like jet engine, turbine, and wind tunnel testing.

A high-speed throughput testing system consists of complete high-channel SCADAS systems, server/client software, data servers, transducers, and monitoring stations.

 

2. What are the key features and advantages of Testlab? 

2.1 Simcenter Testlab Neo: Displays and Guide Me

 

The recent release of Simcenter Testlab Neo provides advances in user task flow and efficiency. The platform was developed with the goal of further improving user experience and interface through instant data access and automatic displays (Figure 9).

 

simcenter_neo_displays (1).gifFigure 9: Data is displayed instantly when selected in Simcenter Testlab Neo.

Simcenter Testlab Neo also contains a “Guide Me” button for automatic assistance with testing tasks (Figure 10).

 

simcenter_neo_guideme.gifFigure 10: By clicking on the Guide Me button (lower right), users of Simcenter Neo are guided automatically through their tasks.

By clicking on the "Guide Me" button in the lower right, the each step of a given task is stepped through one at a time.

 

2.2 Simcenter Testlab: Workflow

Simcenter Testlab, which has been developed over the past two decades, offers a simple linear workflow and familiar layout. It guides users through all steps of data collection, and makes it easy to plot data, compare results across test campaigns, and analyze results.

 

Each workflow taskbar commonly includes “Documentation” and “Navigator”. Documentation allows users to upload reports, such as the general testing setup and technical notes, assign test technicians, and import/export documents, images, and reports to Microsoft Office (Figure 11).

 

simcenter_documentation.gifFigure 11: The Simcenter Testlab Documentation worksheet can have photos, comments, and other attributes.

The original version of Simcenter TestLab guides users through the customizable workflow taskbar, depending on the add-in application module or desired type of test (Figure 12).

 

Workflow Taskbar.pngFigure 12: An example workflow taskbar for sound diagnosis.

These custom workflows can be stored as a task file. By clicking on the task file, the test settings and steps are already setup for the test operator.

 

2.3 Processing while Acquiring

Simcenter Testlab optimizes the testing process by measuring and processing data in real time (Figure 13).

 

simcenter_online_processing.gifFigure 13: Data can be processed in realtime with Simcenter Testlab while simultaneously recording throughput time data.

Using online processing, users can:

  • Validate data while simultaneously acquiring and monitoring it.
  • Process data while simultaneously acquiring raw time data.
  • Use real-time displays to keep updated on incoming data.
  • View new data against references or previously stored runs.

Simcenter Testlab can be configured to perform all of this simultaneously on a single run to shorten overall testing time. Test engineers can get results instantly, instead of waiting weeks for additional processing and analysis.

 

2.4 Data Analysis

Once measurements are completed, Simcenter Testlab offers a variety of analysis and processing (Figure 14). 

 

simcenter_processing.gifFigure 14: Simcenter Testlab processing includes durability, modal, spectral analysis, waterfalls, orders, and more...

Offline processing and analysis includes:

 

At the end of this article there is a more comprehensive list of processing capabilities of Simcenter Testlab.

 

2.5 Active Picture Reports

Reports are easily shared to non-Testlab users via Active Pictures exported to Microsoft Office documents with embedded data to perform further basic analysis outside of Testlab (Figure 15).

 

simcenter_activepicture.gifFigure 15: With the Simcenter Testlab Active Picture, graphs can be activated in Word, Powerpoint, and more without a license.

By double clicking on active pictures in a report, users have access to the full functionality of Testlab displays: cursors, zooming, integrating, smoothing, and more.  No license is required to use an active picture.  For a PC without Testlab installed, a free plug-in can be downloaded and installed.

 

2. 6 Simulation and Test Integration

Simcenter Testlab interfaces with simulation codes, including Simcenter 1D Amesim, Simcenter Nastran, and Simcenter 3D:

  • Test results can be compared against simulation results. For example, NASTRAN FRFs and mode shapes can be compared to measured FRFs and mode shapes.
  • Simulation data can be processed with Testlab algorithms. For example, Simcenter Amesim simulation model time histories can be processed directly with Testlab.
  • Models can be used as virtual channels while processing test data. For example, Functional Mockup Interfaces (FMI) can be used in Testlab Neo process designer.

Read the following case studies on how Siemens customers combine simulation and test solutions:

 

3. How do I get signal data into Simcenter Testlab?

Sensors are conditioned and data is acquired by the Simcenter SCADAS front-ends. SCADAS hardware can convert analog transducers to digital signals with sample frequencies ranging up to 204.8 kHz (Figure 16).

 

Front End GIF.gifFigure 16: Simcenter SCADAS Hardware is modular and can be configured for any application.

SCADAS hardware can be equipped to read a wide variety of transducers, including microphones, accelerometers, strain gauges, LVDTs, tachometers, CAN bus, cameras, GPS, thermocouples, and more (Figure 17).

 

transducers.pngFigure 17: Typical sensors include accelerometers, microphones and arrays, strain gauges, displacement, force, torque, flow, pressure, thermocouples, voltage, current, tachometer, analog output, DAC, Digital (CAN bus, FlexRay), S/PDIF, velocity, camera, wheel-force transducers, binaural headset or Artificial Head, and GPS.

Note: Need additional SCADAS cables? Check out the SCADAS Cable Guide.

 

4. What file formats can Simcenter Testlab read, import, and export?

Finally, Simcenter Testlab is an open software platform, and exports/imports and reads a wide variety of file formats (Figure 18).

 

File Types.pngFigure 18: In Simcenter Testlab, right click on data for export files types…

File types include:

 

5. Simcenter Testlab Licensing

 Simcenter Testlab requires a license to run.  Some licensing options include:

  • Node Locked, USB Key Locked, Floating - Licenses can be assigned to specific PC (node locked), assigned to a USB Key that can be moved between PCs (USB Key Locked), or served from a central PC (floating).

 

simcenter_licenses.pngFigure 19: Simcenteter Testlab licenses can be node-locked to a PC, tied to a USB key, or floated from a central server.

 

  • Fixed versus Token Based - Simcenter Testlab software is modular.  Individual fixed license modules can be purchased separately, or licenses can be purchased as tokens. For more information, see the knowledge base article: "Simcenter Testlab Tokens".

 

6. Directory of Simcenter Testlab Articles:

Simcenter Testlab General

Simcenter Testlab Display Tips

Simcenter Testlab Acquisition Tips

Simcenter Testlab Processing Tips

Questions? Email scott.beebe@siemens.com or post a comment to this article. 

 

Download the Simcenter Testlab brochure for more information.

Comments
Creator
Creator

Hi friends!

 

I have a question, respect to Operational Modal Analysis.

 

It was developed a OMA technique to a Structure and it would need to extract the modes identified (in vector form). What would be the procedure? Please in advance for your help.

 

Grettings

Alvaro

Siemens Phenom Siemens Phenom
Siemens Phenom

Hello Alvaro,

 

On the GTAC site, under Documentation for LMS Test.Lab there are several tutorials including one for Operational Modal Analysis.  You local support team can also assist.


https://support.industrysoftware.automation.siemens.com/docs/lms/test.lab/

 

Also, please post new questions to the Testing forum rather than the Testing Knowledge Base articles unless your question is directly related to that article.