Predicting acoustic contributions and sensitivity: Application to vehicle structures

摘要

The prediction of sound levels in vehicles and the environment is now a common practice in engineering. This has been made possible by the development of powerful computer based tools. These "first generation" systems provided the user for the first time easy to use tools to predict sound levels. This paper will describe a "second generation" acoustic system based on boundary elements which not only enhances the accuracy of the modelling, but also provides powerful diagnostic facilities to enable the user to identify the main contributions to the sound intesity at a any point of interest. Applications are presented.