Acoustics
Here you can find our technical services in the area of acoustics. If you click on the image you will download a detailed pdf-format of that service. Click here for the complete overview of our acoustical services in pdf-format.
Sound absorption measurements
Absorption coefficients in the impedance tube for normal sound fields
Absorption coefficients and equivalent absorption area in the alpha cabin for diffuse sound fields
Testing of sheet material or entire components
Acoustic Insulation measurements
- Testing of sound insulation on components and materials
- Determination of transmission loss and insertion loss
- Mapping of sound intensity over component surfaces
- Vertical or horizontal transmission loss chambers
- Testing in the „Petite Cabine“ test rig
STSF (Spatial Transformation of Sound Fields)
- Localisation und quantification of stationary sound sources
- Computation and visualization of the spatial sound propagation
- High mobility in various fields of application
- Estimation of acoustic transparency und acoustic leak testing for bodyworks, housings and walls
- Sound source and sound field analyses
Experimental modal and operational vibration analysis
- Characterisation of the vibration behaviour of components
- Determination of the modal parameters (modal damping factor)
- High mobility in various fields of application
- Visualisation of the vibrations via measurement equipment systems Polytec Lasersanning Vibrometer or Brüel & Kjaer PULSE Modalanalysis Software
Multi-channel measurements
Multi-channel test equipment: Head Acoustics Artemis/SQ-Lab II or Brüel & Kjaer PULSE
Manifold sensors: microphones, artificial heads, intensity probes, structure borne sound sensors etc.
Signal generators, monopole sources, dodecahedron loud speaker etc.
Acoustic measurements in anechoic test chambers
Acoustic roller test bench
- Two-axle test bench
- Air flow cooling in both driving directions
- Constant environmental condition due to climate control
- Anechoic room for acoustic testing
- Floor covering with asphalt ISO 10844 BSVF
Material testing and parameter determination
- Reliable material parameter sets for simulations
- Direct comparison of geometrically matchable material samples
- Material benchmarking
- Testing with Oberst method or dynamic mechanical analysis (temperature and frequency dependency) for Young’s modulus and damping loss factor
- Biot parameter sets for SEA simulations
Acoustic simulations with SEA and FEM
Sound field simulations with Statistical Energy Analysis (SEA) or Finite Element Method (FEM)
Creation and validation of simulation modells
Numerical structure borne sound analyses of vibrating components
Numerical modal analyses
Seminars and workshops
- Training course samples:
- Acoustic Basics
- Workshop „Acoustic Testing“
- Seminars „Acoustic SEA and FEM Simulation“
- Adapted training programs according to customer preferences
- Practical demonstrations on realistic components and testing equipment
... and what can we do for you? Contact our Techconsult for any questions!
News
| Big order from BMW | 30.06.2009 |
After long negotiations, customer presentations, etc., they finally got the positive news from the BMW management. Carcoustics will supply the complete engine bay acoustics package and the door watershields for the 1 and...
| Big order from Dubai | 21.04.2009 |
Evobus 100% subsidiary of Daimler AG received a big order from Dubai. 260 MercedesCitaro buses will be produced in the factory in Mannheim. Delivery started in March. Carcoustics also participated in this special...
| Carcoustics sponsers proTRon AERIS of the High School Trier | 11.03.2009 |
Not only have the times changed, but also the priorities:
CO2 reduction, new drives, energy efficiency get more important nowadays. Also Carcoustics deals with these issues and looks for weight reductions, solves acoustic...