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Design of a Ground Static Load Test for a 3 m Joined Wing Flexible Sensorcraft
| Content Provider | Semantic Scholar |
|---|---|
| Author | Almeida, Francisco |
| Copyright Year | 2017 |
| Abstract | Operational requirements for High Altitude, Long Endurance (HALE) aircraft capable of carrying advanced sensor arrays over large territorial areas can be achieved by light weight and geometrically unconventional aerostructures. The Boeing Joined Wing SensorCraft (JWSC) concept is one such example. However, the joined wing configuration presents design challenges due to its non-linear aeroelastic behaviour. Computational models to predict the non-linear aeroelastic behaviour have been developed and reported in the open literature, however experimental data to benchmark analytical predictions is still non-existent. The objective of this thesis is to design a Ground Static Load Test (GSLT), its apparatus and procedures to evaluate the structural response of a flexible joined wing sensorcraft, to understand its static behaviour in terms of displacements, strains and aft wing twist angles when subject to a 2.25g pull-up maneuver. A careful test plan matrix was designed including the appropriate boundary conditions, finite element solvers, ground static test rigs and data acquisition systems. The structural computational model was updated based on the linear deflections. Finally, the validity of the model updating process of a non-linear structure using linear displacements was assessed. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://fenix.tecnico.ulisboa.pt/downloadFile/563345090415640/ResumoAlargado_FranciscoAlmeida_72708_FENIX.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
