1–7 von 7 Ergebnissen
|

    Internal Acoustics of the ISS and Other Spacecraft

    C. S. Allen | NTIS | 2017
    Schlagwörter: Helmholtz resonators

    Impedance Eduction in Three-Dimensional Sound Fields With Peripherally Varying Liners

    W. R. Watson / M. G. Jones | NTIS | 2015
    Schlagwörter: Helmholtz equations

    Research Program to Reduce the Interior Noise in General Aviation Aircraft, Index and Summary

    L. Morgan / K. Jackson / J. Roskam | NTIS | 1985
    Schlagwörter: Helmholtz resonators

    Laboratory Test and Acoustic Analysis of Cabin Treatment for Propfan Test Assessment Aircraft

    H. L. Kuntz / R. J. Gatineau | NTIS | 1991
    An aircraft cabin acoustic enclosure, built in support of the Propfan Test Assessment (PTA) program, is described. Helmholtz resonators ...
    Schlagwörter: Helmholtz resonators

    Development and Testing of Cabin Sidewall Acoustic Resonators for the Reduction of Cabin Tone Levels in Propfan-Powered Aircraft (Final Report, October 1986 - December 1990)

    H. L. Kuntz / R. J. Gatineau / R. A. Prydz et al. | NTIS | 1991
    The use of Helmholtz resonators to increase the sidewall transmission loss (TL) in aircraft cabin sidewalls is evaluated. Development ...
    Schlagwörter: Helmholtz resonators