The first step in NVH engineering is to establish a database of basic sound and vibration data sets which then can be re-engineered and assembled to provide the basis for the new sounds.
Sound and vibration data from existing cars are recorded in combination with the basic driving parameters. Using a set of special tools and procedures, which have been developed by SVT, those basic data sets can be decomposed into the sound and vibration of the vehicle's indivudal components. Using a database of those components, modifying them to reflect engineering change and integrating them to represent a new vehicle opens up the world of predictive NVH. Knowledge and expertise of the NVH engineer will help to pre-select a set of reasonable combinations. Once this step has been performed, our NVH simulator provides the perfect tool to evaluate different combinations of components under realistic driving conditions. The simulator even allows for real-time modifications of the components to optimise sound quality whilst at the same time minimising the time required.