In-situ sound power estimation using scattered sound intensity datasets
ABSTRACT
Accurate measurement of the sound power of individual vehicle components is essential in the automotive industry to identify and address noise, vibration, and harshness (NVH) problems. Standard intensity-based techniques, which require a complete set of regularly-spaced normal intensity values over a measurement surface, are commonly used in sound power estimation. However, in cases where datasets from sound intensity mapping procedures are non-uniformly sampled, traditional methods may not produce accurate results.
This paper introduces an alternative approach that utilizes scattered datasets for sound power estimation. The proposed method expands traditional techniques and its feasibility and limitations are evaluated considering variation of the spatial distance between measured positions. The performance of the method is investigated both numerically as well as in a practical application. The proposed approach can be useful in situations where scattered datasets are available. In-situ techniques, such as the proposed method, play a significant role in reducing the need for disassembling the vehicle and performing tests
in a laboratory, leading to more efficient and cost-effective sound power estimation.
CITATION
Lam, T., Lazarin Alberto, M., Marini Storani, T., Guven, E., Fernandez Comesana, D., 2023. "In-situ sound power estimation using scattered sound intensity datasets," in Proceedings of 10th Convention of the European Acoustics Association.
Acoustic Shape