Progress in studying passive and active devices for fuselage noise reduction for next generation turboprop Articles uri icon


  • Arena, M.
  • Di Giulio, M.
  • Paonessa, A.
  • Amoroso, F.

publication date

  • June 2017

start page

  • 303

end page

  • 312


  • 2


  • 8

International Standard Serial Number (ISSN)

  • 1869-5582

Electronic International Standard Serial Number (EISSN)

  • 1869-5590


  • Over the years, the interior noise levels have been improved, and nowadays a high acoustical comfort is of major importance for the commercial success of propeller aircraft. The use and development of high vibro-acoustic performance devices and their integration on the primary structure are, therefore, among the most critical topics in the greening of the next generation air transportation. The purpose of this research was properly focused on the analysis of a dynamic control system appointed to increase the noise attenuation transmitted in the propeller aircraft fuselage. Passive and active dynamic devices have been studied and characterized in this work. Simulations and tests performed on the first stage demonstrator structure highlighted how the passive tuned vibration absorber increases the comfort controlling the structural behaviour of the fuselage at the first blade pass frequency. Further improvements of fuselage comfort can be reached using active devices. A conceptual design of a hybrid active device able to act on the first three blade pass frequencies has been outlined. The characterization of the whole active noise control system has been described and its effect on noise reduction in fuselage of propeller aircraft has been evaluated.


  • passive and active noise control; comfort; turbo prop; noise reduction