Contribution
Concept for cabin noise assessment in the design phase of an aircraft
* Presenting author
Abstract:
The acoustic environment of an aircraft cabin plays an important role, as it has a significant influence on passenger comfort and can make a decisive contribution to product acceptance, especially for new aircraft concepts or technologies. It is therefore necessary to enable and carry out reliable and in-depth evaluations in the aircraft design process.Despite uncertain design parameters at an early stage in the development, efficient simulations make it possible to predict cabin noise throughout multiple design iterations. Most commonly, sound pressure levels in the frequency range are available after successful simulation using the finite element method (FEM). With the help of auralization methods, audio signals can be generated based on these simulation results, which enable psychoacoustic assessment via metrics or listening tests. This increases the depth and quality of the results.This contribution presents an evaluation concept for aircraft cabin noise in the design stage: Based on the simulation model of a short-haul aircraft with propeller and boundary layer excitation, auralizations are generated for listening tests and psychoacoustically evaluated. A discussion addresses the test setup and different test procedures as well as the inclusion of various metrics.