Accession Number : ADA291174

Title :   FFG-7 Ship Motion and Airwake Trial: Part 1.

Descriptive Note : Technical rept.,

Corporate Author : DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Personal Author(s) : Arney, Ashley M.

PDF Url : ADA291174

Report Date : JUL 1994

Pagination or Media Count : 34

Abstract : A trial to measure ship motion and airwake has been carried out aboard an 'Adelaide' class FFG-7 frigate. Data processing procedures are described which take the raw measured data from the data acquisition system, convert them to imperial units, and correct the Gill anemometer data for non-cosinusoidal response to angle-of-attack variation. A method of salvaging data corrupted by high frequency signals is also presented, along with a discussion of further data processing required to enable the results to be used as a data base for a computer simulation of the Sikorsky S-70B-2 helicopter and FFG-7 combination.

Descriptors :   *COMPUTERIZED SIMULATION, *DATA PROCESSING, *SHIP MOTION, *WAKE, *SHIP MODELS, *AIRCRAFT MODELS, *SEA TESTING, DATA BASES, MEASUREMENT, HIGH FREQUENCY, INTERFACES, ANGLE OF ATTACK, VARIATIONS, HELICOPTERS, DATA ACQUISITION, FRIGATES, RADIO SIGNALS, ANEMOMETERS, FISH GILLS.

Subject Categories : Computer Programming and Software
      Fluid Mechanics
      Helicopters
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE