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isrlab / F16-Model-Matlab

Matlab/Simulink Implementation of Full Nonlinear F16 Aircraft Model.
MIT License
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Questions about aerodata #1

Open Equinxo-Prime opened 4 months ago

Equinxo-Prime commented 4 months ago

Hello, thank you for publishing the model, but I encountered two issues while using it: 1： May I ask how you handle the aerodynamic data of F16? I would like to change this model to a low fidelity model, which requires low fidelity data. How should I proceed; 2： When I use the trim toolbox, it always exceeds the range of aerodynamic parameters when searching for trim points, causing the model to stop working. How should I handle this?

raktim commented 4 months ago
  1. This model doesn't have the low fidelity aerodynamics.
  2. Advanced trim options are shown in this example: https://github.com/isrlab/F16Model.jl/blob/master/examples/example1.jl
  3. The trim routing doesn't incorporate inequality constraints yet, so it may generate infeasible trim points. If such a constraint would be imposed, the optimization could also result in infeasibility. This means it is physically impossible to trim the aircraft at the specified configuration.
Equinxo-Prime commented 4 months ago

Thanks