Accession Number:

ADA162862

Title:

Acoustic Forecast for Shuttle Launches at Vandenberg AFB,

Descriptive Note:

Corporate Author:

WESTON OBSERVATORY MA

Personal Author(s):

Report Date:

1985-11-13

Pagination or Media Count:

6.0

Abstract:

Acoustic loads on ground support structures for Shuttle launches at Vandenberg AFB are forecast in a way that satisfies local reverberations. Acoustic spectra at points neighboring the Vandenberg Launch Mount are expected to be enhanced by as much as 15 db by site specific acoustics. Simulated launch loads on the east face of the Payload Preparation Room have a maximum overall sound power level of 156 db. The corresponding sound power maximum for the same averaging time, bandwidth and distance at Kennedy Space Center over a path free of reverberations and ground water cloud attenuation is 149 db. The peak pressure on the Payload Preparation Room after 10 launches is predicted to be 165 db. After a lifetime of 100 launches, peak pressure on the facility is expected to reach 167 db.

Subject Categories:

  • Acoustics
  • Ground Support Systems and Facilities for Space Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE