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Automated modal analysis | AMA

Automated modal analysis allows the user to automatically measure a very high number of points over a long period of time.

Description

Once set up, the system works independently, without further supervision.

Advantages & Innovations

  • Cost and time savings thanks to low personnel costs
  • High measurement quality
  • Reproducibility
  • Large number of degrees of freedom
  • Short measuring times
  • DAkkS calibration (DIN EN ISO/IEC 17025) possible

Application & Integration

  • Research and development
  • Machine diagnostics
  • Model updating
  • Structural dynamics
  • Determination of resonances
  • Determination of eigenvalues
  • Operating vibration modes
  • Structural modification
  • Sensitivity analysis
  • Prototype studies
  • Series testing

Components

Excitation unit

The broadband excitation is carried out with an automatic modal hammer

  • Frequency ranges up to 40kHz
  • Impact forces up to 2500N
  • High reproducibility

Vibration sensor

The AMA can be operated with the following vibration sensors

  • Laser Doppler vibrometer

Measurement data acquisition

4-channel measuring system with synchronous scanning

  • AC, DC and IEPE coupling
  • Anti-aliasing filter
  • 24-bit resolution
  • Frequency ranges 1 to 100kHz
  • Frequency resolution 100 to 26500 FFT lines

Windows PC

  • Standard or industrial PC, also according to customer requirements, with Windows 10/11

Software

The AMA software controls the entire measurement process to perform an automatic, experimental modal analysis.

Specification of the measuring equipment

  • Frequency range 1kHz to 2MHz available
  • Frequency resolution (number of FFT lines) selectable
  • Graphically image-supported definition of the measuring points
  • Automatic measuring process (scanning of the measuring points)
  • 3D animation of the natural and operational vibration shapes

Measurements for a test object

  • Measurements on a component with different numbers of measuring points
  • Measurements on a component with different measurement settings (frequency range, FFT lines, number of averaging, excitation signals, etc.)

Automatic measurement procedure

  • Triggering the automatic modal hammer
  • Measurement of the excitation force and the vibration response
  • Averaging and analysis
  • Natural frequencies, natural shapes/operating vibration shapes and damping

Report creation and output of results for each job as a table

  • Printer, PDF, Excel, CSV, AVI etc.

What we can do for you

In addition to manufacturing and supplying standard measurement systems for experimental modal analysis, we design, plan and develop customized solutions tailored to your requirements. We are also happy to perform the measurements for you as a service.

Please contact us, we will be happy to make you an offer.

Videos

ScanSet test stand

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