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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Bibliographic Details
Published in:Russian aeronautics 2021, Vol.64 (4), p.800-804
Main Authors: Kostin, V. A., Garaev, A. M.
Format: Article
Language:English
Subjects:
Automotive Engineering
Elastic restraints
Engineering
Helicopters
Stiffness
Structural Mechanics and Strength of Flight Vehicles
Online Access:Get full text
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Summary: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