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http://dx.doi.org/10.5139/JKSAS.2015.43.5.396

Prediction for Large Deformation of Cantilever Beam Using Strains  

Park, Sunghyun (Department of Aerospace Engineering, Chungnam National University)
Kim, In-Gul (Department of Aerospace Engineering, Chungnam National University)
Lee, Hansol (Department of Aerospace Engineering, Chungnam National University)
Kim, Min-Sung (Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.5, 2015 , pp. 396-404 More about this Journal
Abstract
The UAV's wing has high aspect ratio that is suitable for the high altitude and long endurance. Knowing the real-time deformation of wing structure in flight, it can be utilized in structural health and loading status monitoring, improvement of control effectiveness and extraordinary vibration phenomena using displacement-strain relationship. In this paper, nonlinear displacement prediction algorithm was developed for prediction of large structural deflection in flight. The algorithm was validated through the comparison with finite element analysis results and also experimental results for several large tip displacements of cantilever beam. The predicted displacements using strains are agreed well with the measured values from laser displacement sensor.
Keywords
High Aspect Ratio Wing; Large Deflection; Nonlinear Displacement-Strain Relationship;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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