TH-Wildau
Structural Dynamics and Acoustics, Design for NVH (Noise Vibration Harshness)
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Structural Dynamics and Acoustics, Design for NVH (Noise Vibration Harshness)

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  10. Structural Dynamics and Acoustics, Design for NVH (Noise Vibration Harshness)

Areas of competence

  • Measurements: structural vibration, airborne noise, modal parameter identification (eigenfrequencies, mode shapes, modal damping), 3D-digitalization with photogrammetry
  • Development: prototype development, methodical design and optimization: development of measurement methods for quality control (end of line test), condition monitoring and prediction, development of test benches for end-of-line test
  • Simulation: FEM analysis of parts and assemblies, modal updating and validation
  • Assessment and technical consulting: design for NVH (Noise, Vibration, Harshness), signal analysis, psychoacoustic noise evaluation, vibration and noise optimization, identification of noise and sound sources, characterization of nonlinear materials and parts and components, Binaural Transfer Path analysis and prediction

Laboratories

  • Laboratory for structural dynamics and acoustics, design for NVH
  • Hemi-anechoic chamber (dimensions: 6,05 x 3,35 x 2,5 m)

Equipment

  • Hemi-anechoic chamber
  • 1D and 3D Scanning Laser Doppler Vibrometer
  • Automated 3D Geometric digitalization system (photogrammetry)
  • 1-point Laser Doppler Vibrometer
  • Scalable automatic modal hammers
  • Test bench for automated acoustic material testing
  • Acoustic measurement instrumentation (binaural)
  • Mobile 24 bit-data acquisition up to 34 channels
  • Piezoelectric accelerometers (1- and 3-axis)
  • Accelerometers for low frequencies
  • Force and strain sensors and impedance heads
  • Electrodynamic vibration exciters ("shaker")
  • Machine diagnostic system including test modules

Software licences

  • ArtemiS SUITE 10, Head acoustics GmbH
  • PSV Scanning Vibrometer, Polytec GmbH
  • vAnalyzer, vModal and VLScanner, Maul-Theet GmbH
  • Test.Lab, Siemens LMS
  • ARTeMIS Modal Pro, Structural Vibration Solutions A/S
  • SolidWorks
  • ANSYS
  • FEMtools, Dynamic Design Solutions
  • MATLAB, MathWorks
  • DesignX, Geomagic

Cooperation

  • NV-Tech-Design GmbH
  • RTE Akustik + Prüftechnik GmbH
  • Fraunhofer IAP - Forschungsbereich Polymermaterialien und Composite PYCO
  • Maul-Theet GmbH
  • Gesellschaft zur Förderung angewandter Informatik (gfai tech GmbH)
  • Deutsches Elektronen-Synchroton (DESY), Zeuthen
  • ArcelorMittal Eisenhüttenstadt GmbH

Contact:

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