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DSP-based variant wing SMA actuator control system

Author: WangLiLi
Tutor: XuZhiWei
School: Nanjing University of Aeronautics and Astronautics
Course: Engineering Mechanics
Keywords: Variants wing Shape memory alloy Digital Signal Processor PID algorithm Control Systems
CLC: V224
Type: Master's thesis
Year: 2009
Downloads: 45
Quote: 0
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Abstract


Hypersonic vehicle flight range environmental change , the traditional aircraft wing is difficult to meet this requirement, and to adaptive intelligent structure based variant wing is an effective solution to this problem the way . Drive technology is to achieve wing variant of the key technologies , is today an important research direction at home and abroad . Drive technology include: drive selection , incentives and control methods. This first gives the trailing edge of the wing variant design model, selected on the basis of the shape memory alloy (SMA) as the driving element , and the design of the SMA actuator structure of the trailing edge of the layout plan . Determining the electrical excitation means , the design of a digital signal processor (DSP) control system for controlling the rear edge of the structure quickly and accurately the deformation . The hardware for the control system of the conditioning circuit and a control circuit schematic and PCB board production , combined with the laser displacement sensor and the DSP circuit board system debugging . With SMA actuator for a variant of the wing trailing edge control object structure after completion of model identification , carried out in Simulink simulation of PID algorithm and the algorithm in DSP development environment CCS3.1 to be a realization , combined hardware of the control system as a whole to complete the system debugging. Finally, the experimental method designed in this paper demonstrate the feasibility and effectiveness of the control system .

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