Source Description

Active noise sources radiate sound directly from the vibrating housing of a component. This airborne contribution is what one would hear if the component, such as a compressor, were levitated without any physical connection to its surroundings. Traditional identification methods are often influenced by the environment, such as room acoustics. In contrast, using an equivalent airborne source description based on blocked volume accelerations provides receiver-independent data, enabling modular product development without interference from the surrounding environment. At VIBES we have developed a specialized technique to transfer such measurements correctly and efficiently from a test bench to the actual product. 

Target cascading is a systems engineering process that breaks down high-level system performance goals into specific targets for subsystems and components. Hybrid Modular Modelling substructuring and the use of blocked forces facilitate this process by enabling the independent optimization of subcomponents. These methods allow constant evaluation of how well subcomponents meet high-level system targets, ensuring that individual parts are optimized without compromising overall system performance. This approach ensures alignment across design levels and enhances the efficiency of modular product development.