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- W4313146617 abstract "Form-Finding Technique (FFT) is an optimization method developed to control the geometric shape of the structure. Through FFT, it is possible to change the initial shape of the structure to the final form with minimum critical working stress under a particular loading. This paper is aimed to investigate the effectiveness of FFT in designing the rear landing gear of fixed-wing Unmanned Aerial Vehicles (UAV). There are three parts of the study that will be done. The first part is how to find the best form of the rear landing gear with high strength through FFT. For this purpose, a computer program based on static linear analysis of 3D frame elements is developed, then the optimization function based on minimum strain energy has been added into the program to reduce the working bending stress to the minimum one. The second part is how to determine the stiffness, maximum strength, and absorbed energy of the optimized landing gear when the UAV touches the ground during landing. Another computational program based on the nonlinear finite element program has been developed to determine those parameters. The third part is how to determine the dynamic responses of the UAV under a shock load, which occurs in landing. For this purpose, the UAV with the rear landing gear is modeled as a spring-mass system. The stiffness of the spring is taken from the result of the second part. In general finding, it has been justified that the optimized form of the rear landing gears shows better behaviors than the initial model, showing the effectiveness of FFT when applied in designing landing gear." @default.
- W4313146617 created "2023-01-06" @default.
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- W4313146617 date "2022-01-01" @default.
- W4313146617 modified "2023-10-16" @default.
- W4313146617 title "Effectiveness of application of form-finding technique in design of rear landing gear of fixed wing unmanned aerial vehicle (UAV)" @default.
- W4313146617 cites W2788262937 @default.
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- W4313146617 doi "https://doi.org/10.1063/5.0103504" @default.
- W4313146617 hasPublicationYear "2022" @default.
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