Determination of Elastic Characteristics of the Helicopter Blade Attachment Based on the Strength Tests Results

Determination of Elastic Characteristics of the Helicopter Blade Attachment Based on the Strength Tests Results

The identification of stiffness of the blade supports at lateral bending vibrations is considered. A beam model is used for elastic restraint. The target functional is applied in the form of the squared discrepancy between the experimental and theoretical values of deformations. The minimization of...

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Veröffentlicht in:Russian aeronautics 2021, Vol.64 (4), p.800-804
Hauptverfasser: Kostin, V. A., Garaev, A. M.
Format: Artikel
Sprache:eng
Schlagworte:
Automotive Engineering
Elastic restraints
Engineering
Helicopters
Stiffness
Structural Mechanics and Strength of Flight Vehicles
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Zusammenfassung:The identification of stiffness of the blade supports at lateral bending vibrations is considered. A beam model is used for elastic restraint. The target functional is applied in the form of the squared discrepancy between the experimental and theoretical values of deformations. The minimization of the functional is carried out by iterations using the sensitivity apparatus.
ISSN:1068-7998
1934-7901
DOI:10.3103/S1068799821040279