Measurements of Self-Excited Rotor-Blade Vibrations Using Optical DisplacementsSource: Journal of Engineering for Gas Turbines and Power:;1984:;volume( 106 ):;issue: 001::page 44Author:A. P. Kurkov
DOI: 10.1115/1.3239549Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During the operation of a turbofan engine at part speed, near stall, and elevated inlet pressure and temperature, several vibratory instabilities were excited simultaneously on the first fan rotor. The torsional and bending contributions to the main flutter mode were resolved by using casing-mounted optical displacement sensors. Strain-gage spectra were used to identify other instabilities in the blade-deflection spectra. The characteristics of optical-displacement spectra and their role of monitoring rotor-blade vibrations are discussed.
keyword(s): Measurement , Rotors , Vibration , Blades , Spectra (Spectroscopy) , Displacement , Strain gages , Turbofans , Pressure , Temperature , Deflection , Sensors , Engines AND Flutter (Aerodynamics) ,
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| contributor author | A. P. Kurkov | |
| date accessioned | 2017-05-08T23:17:55Z | |
| date available | 2017-05-08T23:17:55Z | |
| date copyright | January, 1984 | |
| date issued | 1984 | |
| identifier issn | 1528-8919 | |
| identifier other | JETPEZ-26603#44_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/98469 | |
| description abstract | During the operation of a turbofan engine at part speed, near stall, and elevated inlet pressure and temperature, several vibratory instabilities were excited simultaneously on the first fan rotor. The torsional and bending contributions to the main flutter mode were resolved by using casing-mounted optical displacement sensors. Strain-gage spectra were used to identify other instabilities in the blade-deflection spectra. The characteristics of optical-displacement spectra and their role of monitoring rotor-blade vibrations are discussed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Measurements of Self-Excited Rotor-Blade Vibrations Using Optical Displacements | |
| type | Journal Paper | |
| journal volume | 106 | |
| journal issue | 1 | |
| journal title | Journal of Engineering for Gas Turbines and Power | |
| identifier doi | 10.1115/1.3239549 | |
| journal fristpage | 44 | |
| journal lastpage | 49 | |
| identifier eissn | 0742-4795 | |
| keywords | Measurement | |
| keywords | Rotors | |
| keywords | Vibration | |
| keywords | Blades | |
| keywords | Spectra (Spectroscopy) | |
| keywords | Displacement | |
| keywords | Strain gages | |
| keywords | Turbofans | |
| keywords | Pressure | |
| keywords | Temperature | |
| keywords | Deflection | |
| keywords | Sensors | |
| keywords | Engines AND Flutter (Aerodynamics) | |
| tree | Journal of Engineering for Gas Turbines and Power:;1984:;volume( 106 ):;issue: 001 | |
| contenttype | Fulltext |