Testing and measurement techniques for accurate acoustic system analysis

The objective of acoustic measurement and testing techniques is, of course, to arrive at an understanding of the acoustic system as a basis for determining specific problem-solving and optimisation activities.

We perform measurements both in the laboratory and on operational machinery, plant and equipment, recording the full range of internal and external noise, both steady-state and transitory. The data thus acquired enable identification of relevant excitation sources, transmission paths and emission locations. 

• Sound pressure measurements with acoustic camera
• Sound pressure and intensity measurements
• Structure-borne and fluid-borne sound measurements
• Transfer path analyses
• Experimental modal analyses

Acoustic optimisation based on simulation techniques

We utilise vibroacoustics simulation in the development of quiet machines and vehicles.

• Modal analyses (Matrix Structural Analysis, FEM, MBS)
• Frequency response analyses (FEM, MBS)
• Calculation of the radiated sound field (Boundary Element Method)
• Noise forecasts

Mastery of these techniques enables us to support – even during the early development phase – the client’s concept and layout definition work or the selection and design of e.g. acoustic hoods, screens, silencers and insulation systems. As a result, development time and cost can be appreciably reduced.

Single-source acoustic solutions

If required, we can also offer the engineering, design, manufacture and supply of tailored solutions for noise reduction, with offerings such as:

• Complete noise kits
• Acoustic hoods, enclosures and screens
• Silencers, mufflers and sound absorbers
• Sound-insulated cabins