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Study of noise transmission through double wall aircraft windows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Vaicaitis, R. |
| Copyright Year | 1983 |
| Description | Analytical and experimental procedures were used to predict the noise transmitted through double wall windows into the cabin of a twin-engine G/A aircraft. The analytical model was applied to optimize cabin noise through parametric variation of the structural and acoustic parameters. The parametric study includes mass addition, increase in plexiglass thickness, decrease in window size, increase in window cavity depth, depressurization of the space between the two window plates, replacement of the air cavity with a transparent viscoelastic material, change in stiffness of the plexiglass material, and different absorptive materials for the interior walls of the cabin. It was found that increasing the exterior plexiglass thickness and/or decreasing the total window size could achieve the proper amount of noise reduction for this aircraft. The total added weight to the aircraft is then about 25 lbs. |
| File Size | 3140828 |
| Page Count | 92 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840003816 |
| Archival Resource Key | ark:/13960/t0gv0f708 |
| Language | English |
| Publisher Date | 1983-06-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Thickness Noise Reduction Windows Apertures Noise Prediction Aircraft Pressure Reduction Aircraft Compartments Stiffness Parameter Identification Polymethyl Methacrylate General Dynamics Aircraft Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
