Car doors, seats, camshafts, ball, bearings, cylinder head gaskets, tailgates, ABS motors – the list of the single components that are installed in vehicles and cause a certain noise level is long.
A large number of these are rotary or mechanic functional units. Car manufacturers (OEM) specify to their suppliers how sound effects must be developed and evaluated due to specific requirements. Furthermore, acoustic analyses can detect decisive faults.
The noise and impact sound analysis for mechanic functional test describes a method where assemblies are checked for their vibration behaviour by means of detecting airborne and impact sounds. Thereby, a sound image is recorded and the frequency spectrum analysed.
Even supposedly unspectacular exterior mirrors are full of technology. Comfortable adjustment of the field of vision or automatic folding are pleasant comfort functions. However, disturbing noises should be avoided in the process. The acoustic analysis systems CARoLINE and SoundChecker enable an acoustic evaluation of mirrors.
Tamara Zehe, Ingenieurin bei GÖPEL electronic, präsentiert kurz und prägnant die Systeme zur Akustikanalyse
For evaluation of the functionality and assembly quality of electromotive drive systems in vehicles.
SoundChecker is a stand-alone system for sound analysis. It consists of a measurement data collecting unit, structure-borne sound sensors or open air microphones.