This paper presents a technique proposed to analyzed the geometrical nonlinearity of High Aspect Ratio (HAR) wing at aspect ratio, AR 16 with the inclusion of follower force. In this study, nonlinear static analysis of HAR Wing model under non-follower and follower force was performed through the Finite Element Analysis (FEA) using MSC NASTRAN software. Two important parameters (force identification, ‘FORCE2’ and large displacement, ‘LGDISP’) are considered to demonstrate the FEA nonlinear static analysis of follower force. For validation, a ground static load test was performed using small-scale load application structure through a different load direction applied for non-follower and follower force. It was found that, the selection of LGDISP = 1 in FEA nonlinear static analysis of follower force shows closest results compared to experimental data. This exhibits that combination of large displacement and follower force stiffness in LGDISP = 1 contribute to the accuracy of nonlinear follower force results. Another finding shows that, techniques of determining the load direction in ground static load test is adequately to predict the tip deflection of HAR wing with a minimal percentage error obtained. The comparison for the load case under non-follower and follower force are also demonstrated through FEA and experimental. The results show that the follower force effect indicates a higher deflection than non-follower force for both considered cases; simulation and experimental.
Nonlinear Follower Force Analysis with Ground Static Test Validation of High Aspect Ratio Wing
Lect.Notes Mechanical Engineering
Proceedings of International Conference of Aerospace and Mechanical Engineering 2019 ; Chapter : 36 ; 421-432
2020-06-13
12 pages
Article/Chapter (Book)
Electronic Resource
English
Finite element analysis , Follower force , Ground static test , High aspect ratio wing Engineering , Aerospace Technology and Astronautics , Vibration, Dynamical Systems, Control , Fluid- and Aerodynamics , Quality Control, Reliability, Safety and Risk , Engine Technology , Engineering Thermodynamics, Heat and Mass Transfer
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