Accession Number : ADA297603

Title :   Preliminary Design and Testing of the Laboratory System to Measure Rotor Blade Deflections.

Descriptive Note : Final technical rept.,

Corporate Author : CENTRAL AERODYNAMIC INST MOSCOW (RUSSIA)

Personal Author(s) : Fonov, Serge D. ; Kulesh, Vladimir P. ; Tarazov, Nikolay N. ; Bosnyakov, Serge M.

PDF Url : ADA297603

Report Date : JUN 1995

Pagination or Media Count : 33

Abstract : Research programs conducted in the National Full-Scale Aerodynamics Complex (NASA, Ames) requires a non-invasive instrumentation capability to measure the dynamic deflection of large scale rotor blades during wind tunnel test. TsAGI suggests to design, develop and test of a prototype measurement system, including mast mounted two dimensional coordinate sensor, a set of the retroreflectors installed on the blade, digital image acquisition and processing system coupled with a personal computer, synchronizing and power supply units. Measurement methodology and appropriate software must be developed and tested. This paper describes results obtained during Preliminary stage of this project, what is aimed to evaluate the possibility of the measurements, to approve required measurement accuracy, to develop measurement methodology and to formulate the technical requirements to the prototype system. All investigations were carried out on the laboratory measurement system simulating real geometry. Test results using real data are described, analyzed and compared.

Descriptors :   *WIND TUNNEL TESTS, *ROTOR BLADES, TEST AND EVALUATION, COMPUTER PROGRAMS, REQUIREMENTS, DIGITAL SYSTEMS, MEASUREMENT, METHODOLOGY, ACQUISITION, DYNAMICS, PROCESSING, RETROREFLECTORS, DEFLECTION, ACCURACY, PROTOTYPES, IMAGES, POWER SUPPLIES, LABORATORY PROCEDURES, GEOMETRY, SYNCHRONIZATION(ELECTRONICS), LABORATORIES, MICROCOMPUTERS, SUPPLIES, RESEARCH MANAGEMENT, AERODYNAMICS.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE