Accession Number : ADA184071

Title :   Automated Acoustic Intensity Measurements and the Effect of Gear Tooth Profile on Noise.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s) : Atherton,William J ; Pintz,Adam ; Lewicki,David G

PDF Url : ADA184071

Report Date : Jan 1987

Pagination or Media Count : 12

Abstract : Acoustic intensity measurements were made at NASA Lewis Research Center on a spur gear test apparatus. The measurements were obtained with the Robotic Acoustic Intensity Measurement System developed by Cleveland State University. This system provided dense spatial positioning, and was calibrated against a high quality acoustic intensity system. The measured gear noise compared gearsets having two different tooth profiles. The tests evaluated the sound field of the different gears for two speeds and three loads. The experimental effect on measured noise. Load and speed were found to have an effect on noise also.

Descriptors :   *GEAR TEETH, *GEAR NOISE, HIGH DENSITY, SPATIAL DISTRIBUTION, GEARS, ACOUSTIC FIELDS, ACOUSTIC MEASUREMENT, ACOUSTIC SIGNALS, AUTOMATION, INTENSITY, TEST EQUIPMENT, VELOCITY, ACOUSTIC RECORDING SYSTEMS

Subject Categories : Machinery and Tools
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE