Extensive flight data is usually required to obtain the model derivatives for a 6DOF nonlinear model. One approach to simulating rotorcraft is to build up a generic model component by component. These components are described by nonlinear aerodynamics in a derivative model. The more generic simulation models can be combined with these models to form a generic baseline model and then be tuned by the collected flight test data. The derivative models are typically in state-space form.
The addition of 3 additional degrees of freedom adds coning, longitudinal, and flapping dynamics of the rotor.
[[Rotor Wake Effects of the BO-105]]
[[EC-135 Fenestron System Identification]]
[[Rotorcraft GVT]]- more difficult than fixed-wing GVTs
[[Phase Resonance Method]] – time consuming
- drhamelAdvancesAerodynamicModeling2001
Backlinks:
[[Rotorcraft Models]]
[[State-space Model]]
[[System Identification]]