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Work done in collaboration with: Adam Waite

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1 Work done in collaboration with: Adam Waite
Michael Walker February 14, 2008 Dynamics and Control Group Contact TVC Autopilot and Guidance System Work done in collaboration with: Adam Waite AAE 450 Spring 2008 Dynamics and Control

2 TVC Guidance and Autopilot Control
Lessons from last week: Designing a new stable control method is far from trivial. Solution: Find and implement a proven control theory Method Chosen: Control theory based on paper by Yeh, Chang and Fu,1 Stability of system based on Lyapunov stability.1 Basics of Controller: 2 Systems: Autopilot (Attitude Control) and Guidance (Position Control) Drawback: For both systems to run in Parallel two control devices needed. (Currently we only model 1: TVC) Solution: Logic to switch between attitude and position control based on position error AAE 450 Spring 2008 Dynamics and Control

3 Results from Attitude Control Simulation
50 100 150 -100 -80 -60 -40 -20 20 40 60 80 time (s) Steer Angle (deg) Simulated Desired Future Work Figure 1: Simulated and Optimal Steer Angles by Mike Walker and Adam Waite Develop Logic for interplay between Guidance System and Autopilot Monte Carlo Simulations AAE 450 Spring 2008 Dynamics and Control

4 References 1.) Fu-Kuang Yeh, Kai-Yuan Cheng, and Li-Chen Fu “Rocket Controller Design With TVC and DCS” National Taiwan University, Taipei, Taiwan 2003 AAE 450 Spring 2008 Dynamics and Control

5 AAE 450 Spring 2008 Dynamics and Control

6 Autopilot System AAE 450 Spring 2008 Dynamics and Control

7 Guidance System AAE 450 Spring 2008 Dynamics and Control


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