A sensitivity analysis comparing two procedures for adjusting as-measured spectra to reference conditions

Roof, C. J.; Fleming, Gregg G.; Rickley, Edward J.; Reherman, Clay N

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A sensitivity analysis comparing two procedures for adjusting as-measured spectra to reference conditions

2002-04-01
By Roof, C. J. ; Fleming, Gregg G. ; Rickley, Edward J.

File Language:

English

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Creators:

Roof, C. J. ; Fleming, Gregg G. ; Rickley, Edward J. ; Reherman, Clay N
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Subject/TRT Terms:
Publication/ Report Number:

DOT-VNTSC-FAA-05-09
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report; January 2002 ¿ April 2002
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration
Abstract:

The Society of Automotive Engineers’ (SAE) Aerospace Recommended Practice (ARP) No. 866A (866A), and a ; procedure utilizing pure-tone absorption equations developed in support of the International Organization ; for Standardization’s (ISO) 9613-1 and the American National Standards Institute’s (ANSI) S1.26-1995, are ; compared and a sensitivity analysis undertaken. The ISO and ANSI equations are identical to each other. ; Thirteen takeoff and two approach spectra for aircraft were utilized in the analysis, as well as one ; takeoff, two approach, and three flyover spectra for helicopters. As-measured spectra were processed at 10 ; standard distances between 200 ft. and 25,000 ft., and at five different temperature/ relative humidity ; (RH) combinations, to generate adjusted spectra and associated LASmx values. The focus of the study is a ; refined version of the ISO/ANSI adjustment procedure developed specifically for application to one-third ; octave-level data.
Format:

PDF
Funding:

FA-53/BS232
Download URL:

https://rosap.ntl.bts.gov/view/dot/8907/dot_8907_DS1.pdf
File Type:

[PDF - 3.13 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha-512:17e3eb65dac643f27ee1e30b67b934494bbe91e1d6ab432f2ff5b07ce5e11d34b7715e207aed69d6db4e1301291b24bb41f94e94fc7b71d100190caadddb8688

File Language:

English

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