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Application and implementation
Center of Engineering Research & Develoment
Laser Application Centre

Measurement, Analysis and Reduction of Noise and Vibrations

MEASUREMENT AND ANALYSIS OF NOISE

  • Measurements of acoustic pressure levels
  • Measurements of sound intensity
  • Measurements of acoustic performance
  • Measurements of material parameters (absorbability, attenuation/soundproofing).
  • Frequency analysis of noise (FFT, 1/n-octave).
  • Mapping of noise fields by means of microphone fields (acoustic holography, beam-forming).
  • Graphic imagining of the sound field in the object vicinity
  • Identification of principal noise sources
  • Determination of partial acoustic performances
  • Cooperation in reducing the noise of machinery and equipment

 

MEASUREMENT AND ANALYSIS OF VIBRATIONS

  • Measurements of vibration total values
  • Measurements of time courses and angular courses of vibrations (dependence on mechanism rotations, for example, the machine main shaft).
  • Frequency and rank analysis
  • Measurements of transitional conditions on the machine
  • Measurements of transfer and attenuation characteristics of oscillating systems
  • Experimental modal analysis(natural frequency, natural deflection shapes, attenuation)
  • Measurements of operational deflection shapes (animation of machine oscillation at the stable or transition condition)
  • Electromechanical excitation of bodies and mechanisms by means of controlled vibrators
  • Cooperation in reducing the oscillation of machinery and equipment, proposal and implementation of vibration insulating elements
  • Vibrodiagnostics

 

SPECIFICATION OF LABORATORIES AND CHAMBERS

Hemi-anechoic chamber

  • Internal dimensions 12 × 8.5 × 5.5 m
  • Measurements of acoustic pressure levels from 20 dB(A)
  • Measurements of machines with the weight up to 10 t
  • Supply of technological media, venting of combustion gases

Reverberation (echo) chamber

  • Volume 224 m3
  • In conformity with ISO 354
  • Weight of measured samples up to 1 t

Soubory ke stažení

Address: VÚTS, a.s. | Svárovská 619 | Liberec XI - Růžodol 1 | 460 01, Liberec XI | Czech Republic

Contact: Phone: +420 485 301 111 | Fax: +420 485 302 402 | Email: vuts@vuts.cz

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