Interference noise
Interference noise quickly leads to a negative vehicle rating not only by customers of the premium class. They expect a pleasant acoustic climate in the vehicle and are becoming more and more demanding in this regard.
- Examination of disturbing noise using artificial head
For this reason, chattering windshield wipers and other rattling, creaking or squeaking parts must be avoided under all circumstances. Operating and functional noises must also be designed so that they sound as pleasant as possible to the customer.
Interference noises can be metrologically examined. For this purpose, a servo-hydraulic 4-post test bench can be used for vehicle excitation. These noises can also be calculated using simulation methods. Depending on the background noise, structural-acoustic or aeroacoustic methods must be used here.
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