| Autor: |
Satria, E., Putra, B. S., Son, L., Malta, J., Bur, M. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2592 Issue 1, p1-8, 8p |
| Abstrakt: |
This paper presents a study of the behavior of the rear landing gear of fixed-wing unmanned aerial vehicles (UAV) under the shock load, which occurs during landing. There are two parts of the study that will be done. The first part is a static analysis to determine elastic stiffness, yield strength, and absorbed energy of four types of the geometrical shape of landing gear using an in-house computational program based on nonlinear finite element analysis. The second part is a dynamic analysis to determine the dynamic responses of the UAV under shock load. In this part, the UAV with the rear landing gear is modeled as one degree-of-freedom spring-mass system. The elastic stiffness of the spring is taken from the result of the first part. The results are given in the comparison of the displacement and acceleration responses for all models. The general findings show that higher stiffness of the landing gear provides more increased strength; therefore, the aircraft will be strong enough when landing. Moreover, higher stiffness also provides small displacement after a shock load, making UAVs still stable during landing. However, higher stiffness provides low energy absorption; hence, the landing gear will have smaller elastic deformation, and it can be fractured faster under the shock load. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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