Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2006-08-01
2006-08-01
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C702S056000, C073S583000
Reexamination Certificate
active
07085655
ABSTRACT:
A method and apparatus for detecting the defects of at least one rotor of a rotary wing aircraft, in particular a helicopter, in order to adjust the rotor. In the method, in a preliminary step, a reference aircraft is used corresponding to a particular type of aircraft and having a rotor (6, 10) without defect and adjusted so that the level of vibration is at a minimum, a series of measurements are taken on the aircraft (1), and a neural network is deduced therefrom illustrating the relationships between accelerations representative of vibration, and defects, and adjustment parameters. Thereafter, in a later step, for a particular aircraft (1) of the same type, measurements are taken on the particular aircraft (1) and on the basis of said measurements and on the basis of the neural network, the defects, if any, are detected and values for the adjustment parameters are determined that will enable the level of vibration of the aircraft (1) to be minimized, which parameters are applied to the rotor (6, 10).
REFERENCES:
patent: 4937758 (1990-06-01), Hayden et al.
patent: 5544073 (1996-08-01), Piety et al.
patent: 5901272 (1999-05-01), Schaefer, Jr. et al.
patent: 5995910 (1999-11-01), Discenzo
patent: 6098022 (2000-08-01), Sonnichsen et al.
patent: 6199018 (2001-03-01), Quist et al.
patent: 6301572 (2001-10-01), Harrison
patent: 6415206 (2002-07-01), Ventres
patent: 6466888 (2002-10-01), McCool et al.
patent: 6567757 (2003-05-01), Bechhoefer et al.
patent: 19808197 (1999-09-01), None
patent: 0577159 (1994-01-01), None
patent: 08159928 (1996-06-01), None
patent: 08221137 (1996-08-01), None
patent: 07190849 (1997-07-01), None
“Learning Representation by Back-Propagation Errors,” D. Rumlhart, G. Hinton and R. Williams,Nature, 1986, vol. 323, pp. 533-536.
Barlow John
Eurocopter
Moffat Jonathan
Young & Thompson
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