Noise Protection

Noise Protection

1. Porous sound absorbers in rooms, enclosures and noise barriers

  • overview
  • direct application of sound absorber on the wall
  • sound absorber at distance to wall
  • sound absorbing coverings
  • measurement methods

2. Resonance absorbers in rooms, enclosures and noise barriers

  • plate oscillators
  • Helmholtz resonator
  • λ/4 resonator
  • further mechanisms

3. Silencers and mufflers in ventilation and exhaust systems

  • introduction
  • absorption muffler
  • reflection muffler
  • λ/4 resonance muffler
  • Helmholtz resonance muffler
  • hybride mufflers

4. Enclosures at components of machines and devices

  • effect
  • paths of sound propagation
  • design of wall elements of enclosure

5. Noise control by screening of traffic noise and at workplaces

  • effect
  • calculation

6. Structure-borne noise isolation at components of machines and devices

  • force excitation
  • excitation of grounding

Scroll Up