Development of an enhanced fairing acoustic protection system to increase payload comfort

Autor: SANCHEZ CEBRIAN, Alberto, FREIBURGHAUS, Silvio, TONON, Devis, PACHALE, Urs, SCHOENWALD, Stefan, GERNGROSS, Tobias
Rok vydání: 2019
Předmět:
DOI: 10.13009/eucass2019-747
Popis: During the last years, there is an increasing demand from launch primes and space satellite suppliers to improve the payload comfort during flight and increase the payload volume. An improved Fairing Acoustic Protection (FAP) would address both needs. This research investigates a sound absorbing surface in the inner face sheet of the payload fairing sandwich structure. The approach comprises the development of a prediction tool for acoustic impedance and absorption; validated by acoustic testing, such as impedance tube and alpha cabin measurements. Finally, the approach is applied to a real study case with a medium sized class Payload Faring (diameter 2.5 - 4.0 m).
Databáze: OpenAIRE