Aircraft Model
In the simulation for aircraft ,should model be linear or nonlinear?
i am working on a project ,i am making simulation for the 747 ,but i don't know if the model should be linear or nonlinear.i mean can i use the A B C D matrices or i should use nonlinear model then i have to linearize it?thanks
Since a 747 is not a linear machine, (actually almost nothing is linear), I think you should use a nonlinear model.
The main reason because engineers used to like linear models is because they are easy to work with (easier math). Nowadays, with computers doing the hard math work it does not make much sense to use linear model for everything.
In the old days when all engineering work was done with paper and pencil, "easy math" linear models was the only way to go. Today with powerful computers and software readily available, there are not many reasons for not using a more accurate nonlinear model.
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