An Integrated, Modular Simulation System for Education ... - Cal Poly

Test Setup for FeedbackTwo models for the PhEagle were set up to test the force feedback system and theS-function code. The first uses the 6-DOF model with Nz and p fed back to the stick. Thesecond model has no dynamics in the model so feed back can be set up and testedindependently of the flight model.Portability of Simulations - Unix to PCThe Simulink model code is completely portable between a PC and a Unixworkstation and the X-29a and the 6-DOF have been run on both. The SH-2f has beenchecked to confirm enough processing speed to run in real time on a PC.Analysis ToolsSimulink is a graphical front end that runs in the Matlab environment. Severalblocks are included to provide an interface to the Matlab workspace. The ability to senddata from a simulation to the Matlab workspace allows immediate analysis of asimulation or control system.Matlab Analysis ToolsThe data that can be passed to the Matlab includes time histories as well asfrequency domain data. This allows plots of multiple configurations as well ascomparisons between a model and data collected from the actual aircraft.CIFERThe time domain provides a reasonable first cut confirmation of a math model.Time domain analysis is performed by perturbing the system (with a step or impulse)then collecting the response of the airframe as a plot of the magnitude of the motion. Tovalidate the model over the complete range of input and output frequencies a frequencydomain analysis is required. For the responses to control inputs, aircraft models can be77