Translational Motion Control of Vertical Takeoff Aircraft Using Nonlinear Dynamic Inversion

1998 ◽  
Vol 21 (1) ◽  
pp. 179-182 ◽  
Author(s):  
Yoge Patel ◽  
Phill R. Smith
Keyword(s):  
Motion Control ◽  
Nonlinear Dynamic ◽  
Translational Motion ◽  
Dynamic Inversion ◽  
Vertical Takeoff ◽  
Nonlinear Dynamic Inversion

scholarly journals VTOL UAV Transition Maneuver Using Incremental Nonlinear Dynamic Inversion

2018 ◽  
Vol 2018 ◽  
pp. 1-19 ◽  
Author(s):  
Zhenchang Liu ◽  
Jie Guo ◽  
Mengting Li ◽  
Shengjing Tang ◽  
Xiao Wang
Keyword(s):  
Optimal Control ◽  
Nonlinear Dynamic ◽  
Dynamic Inversion ◽  
Control Allocation ◽  
Vtol Uav ◽  
Vertical Takeoff And Landing ◽  
Aerial Vehicle ◽  
Vertical Takeoff ◽  
Transition Flight ◽  
Nonlinear Dynamic Inversion

The paper seeks to study the control system design of a novel unmanned aerial vehicle (UAV). The UAV is capable of vertical takeoff and landing (VTOL), transition flight and cruising via the technique of direct force control. The incremental nonlinear dynamic inversion (INDI) approach is adopted for the 6-DOF nonlinear and nonaffine control of the UAV. Based on the INDI control law, a method of two-layer cascaded optimal control allocation is proposed to handle the redundant and coupled control variables. For the weight selection in optimal control allocation, a dynamic weight strategy is proposed. This strategy can adjust the weight of the objective function according to the flight states and mission requirements, thus determining the optimizing direction and ensuring the rationality of the allocation results. Simulation results indicate that the UAV can track the target trajectory accurately and exhibit continuous maneuverability in transition flight.

scholarly journals Time-Delay Robust Nonlinear Dynamic Inversion for Chaos Synchronization with Application to Secure Communications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Eunro Kim ◽  
Inseok Yang ◽  
Dongik Lee
Keyword(s):  
Time Delay ◽  
Nonlinear Dynamic ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Chaotic Behavior ◽  
Control Technique ◽  
Delay Systems ◽  
Dynamic Inversion ◽  
Synchronization Problem ◽  
Nonlinear Dynamic Inversion

The time-delay robust nonlinear dynamic inversion (TDRNDI) control technique is proposed to synchronize time-delay Chen systems. The time-delay Chen circuit is simple but exhibits complex irregular (chaotic) behavior. For this reason, this circuit can be efficiently used to encrypt messages for secure communication. In this paper, the nonlinear control-based chaos synchronization problem is considered. The proposed TDRNDI controller is a modified version of a robust nonlinear dynamic inversion (RNDI) applicable to chaotic systems, including time-delay systems. The performance and feasibility of the proposed TDRNDI controller are demonstrated by conducting numerical simulations with application to a secure communication network.

Reentry Flight Controller Design Using Nonlinear Dynamic Inversion

2003 ◽  
Vol 40 (1) ◽  
pp. 64-71 ◽  
Author(s):  
R. R. da Costa ◽  
Q. P. Chu ◽  
J. A. Mulder
Keyword(s):  
Nonlinear Dynamic ◽  
Controller Design ◽  
Dynamic Inversion ◽  
Nonlinear Dynamic Inversion
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