A Study To Correlate Flight Measured Helicopter Vibration Data And Pilot Comments
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Report Number: WADD TR 61-66
Author(s): Grant, William J.
Corporate Author(s): Vertol Division, Boeing Company
Date of Publication: 1961-08
Pages: 55
DoD Task:
Identifier: AD0269001
Abstract:
Lissajous' patterns of resultant displacement, velocity, and acceleration are constructed and evaluated to define those characteristics which best correlate with the pertinent pilot comments. A new measure of comfort level, Equivalent Vibration Level (V sub og) is defined. These quantities are calculated for all Lissajous' figures, and resulant acceleration is seen to be the most meaningful parameter. n improvement in the degree of correlation between measured vibration and pilot comment is shown through the use of Veq for the patterns of resultant acceleration, in lieu of the standard vibration criteria.
Author(s): Grant, William J.
Corporate Author(s): Vertol Division, Boeing Company
Date of Publication: 1961-08
Pages: 55
DoD Task:
Identifier: AD0269001
Abstract:
Lissajous' patterns of resultant displacement, velocity, and acceleration are constructed and evaluated to define those characteristics which best correlate with the pertinent pilot comments. A new measure of comfort level, Equivalent Vibration Level (V sub og) is defined. These quantities are calculated for all Lissajous' figures, and resulant acceleration is seen to be the most meaningful parameter. n improvement in the degree of correlation between measured vibration and pilot comment is shown through the use of Veq for the patterns of resultant acceleration, in lieu of the standard vibration criteria.