Accession Number : AD0771965

Title :   Advanced Torque Measurement Systems Technique for Aircraft Turboshaft Engines.

Descriptive Note : Final rept. 7 Mar 72-7 Feb 73,

Corporate Author : AVCO LYCOMING DIV STRATFORD CONN

Personal Author(s) : Scoppe,Frank E.

Report Date : JUN 1973

Pagination or Media Count : 111

Abstract : A torque measuring system based upon a transducer using the magnetostrictive effect of a ferromagnetic material has been evaluated. Required accuracy of the measurement system was plus or minus 1% of reading for a range from 30 to 100% of shaft torque. This accuracy was to be obtained on shafts with metal temperature to 500F and with a system environmental temperature from -35F to +165F. The evaluation was performed in three phases: analysis, design and fabrication, and test. (Modified author abstract)

Descriptors :   *HELICOPTERS, *GAS TURBINES, *SHAFTS(MACHINE ELEMENTS), TORQUE, *MEASUREMENT, TURBOJET ENGINES, TRANSDUCERS, MAGNETOSTRICTION, FERROMAGNETIC MATERIALS, EXPERIMENTAL DESIGN

Subject Categories : Helicopters
      Test Facilities, Equipment and Methods
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE