Accession Number : AD0684395

Title :   DESCRIPTION OF A HELICOPTER ROTOR NOISE COMPUTER PROGRAM

Descriptive Note : Final rept. Mar 1967-Oct 1968

Corporate Author : WYLE LABS HUNTSVILLE AL RESEARCH STAFF

Personal Author(s) : Ollerhead, John B ; Taylor, Robert B

PDF Url : AD0684395

Report Date : Jan 1969

Pagination or Media Count : 81

Abstract : The report contains a comprehensive description of a computer program developed for the numerical evaluation of the helicopter noise equations derived in AD-684 394, 'Studies of Helicopter Rotor Noise.' It is completely self- contained in that the program details are described, starting from two basic acoustic equations and covering methods by which these equations are applied to the rotor noise problem. Program flow diagrams and a complete listing are presented together with input instructions and sample inputs and outputs. The program is written in FORTRAN IV for the CDC 3300 Computer.

Descriptors :   *HELICOPTER ROTORS, *PROPELLER NOISE, AERODYNAMIC LOADING, COMPUTER PROGRAMS, DIGITAL COMPUTERS, FLOW CHARTING, HELICOPTERS, MOTION, NUMERICAL ANALYSIS

Subject Categories : Helicopters
      Computer Programming and Software
      Computer Hardware
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE