Seminar, Schulung - Lärmschutz, Schallschutz, Lärmminderung

Seminar – Noise control

Goal of the seminar Noise control is to give the training participant a wide overview of the working principle and the achievable effect of typically applied noise reduction systems. These include especially silencer and muffler, enclosure, screen and structure-borne noise isolation.

All along, practical experiments and exemplary measurements are carried out to demonstrate the gained knowledge in the field of noise control and noise reduction.

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Seminar:

Noise control

Duration:

ca. 8 hours

Location:

Gesellschaft für Akustikforschung Dresden mbH, Dresden

Speaker:

Prof. Dr.-Ing. Jörn Hübelt

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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

Resonance absorbers in rooms, enclosures and noise barriers

plate oscillators
Helmholtz resonator
λ/4 resonator
further mechanisms

Silencers and mufflers in ventilation and exhaust systems

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

Enclosures at components of machines and devices

effect
paths of sound propagation
design of wall elements of enclosure

Noise control by screening of traffic noise and at workplaces

effect
calculation

Structure-borne noise isolation at components of machines and devices

force excitation
excitation of grounding

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