OEM&Lieferant Ausgabe 2/2020

108 Joining technology NVH development is becoming increasingly important. It is present in all industrial sectors fromwashing machines to vehicles, aircrafts and wind turbines. NVH stands for Noise, Vibration and Harshness. This development is about avoiding vibration and is among the quality characteristics of a product which are most frequently directly observed. Excessive noise and vibration cause problems. They can affect the performance of a product negatively if it wears out earlier as a result, shows a less efficient performance or – in extreme cases – has a shorter product life due to a mechanical failure. If you take a closer look at the vibration tech- nology in cars, for example, youwill notice that the requirements in that particular field are ex- ceptionally diverse: engine, body, running gear New product group in the Böllhoff portfolio – SITEC fasteners for vibration and noise decoupling and other components generate noise and vi- bration. Vehicle acoustics is a highly complex field. Today‘s electrified drive trains lead to the formation of new, changed noise characteris- tics. It is a real challenge for developers and designers to have the answers to all vibration and acoustics issues. Decoupling vibrations and noise The new product group of SITEC vibration and noise decoupling fasteners is Böllhoff‘s answer to today‘s trend toward NVH devel- opment. The focus is on vibrations produced by actua- tors such as pumps, compressors and engines. Image: © Böllhoff Image: © Yurok Aleksandrovich/stock.adobe.com