导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2017, Vol. 38 ›› Issue (1): 220313-220313.doi: 10.7527/S1000-6893.2016.0207

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles     Next Articles

Dynamic shape control of wings using piezoelectric fiber composite materials

WANG Xiaoming1, ZHOU Wenya2, WU Zhigang1,2   

  1. 1. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;
    2. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China
  • Received:2016-04-11 Revised:2016-07-06 Online:2017-01-15 Published:2016-07-21
  • Supported by:

    National Natural Science Foundation of China (11432010, 11502041)

Abstract:

The structure efficiency and aerodynamic performance of flexible wings can be effectively improved with active shape control using piezoelectric materials. In order to realize the effect of continuous smooth dynamic shape control with high precision, some dynamical requirements must be satisfied in shape control process of the wings. In this study, new piezoelectric fiber composite materials-macro fiber composite (MFC), which are laid anti-symmetrically on the top and bottom wing surfaces, are used for actuation to achieve feedforward tracking control of twist motion of the wing. The structural finite element model for the wing and the aerodynamic loads are established. The control input vector for the MFC is obtained using load simulation method. The active aeroelastic equations and the state space representation are presented. In order to track the pre-defined deformation reference trajectory, the voltage profiles for MFC actuators are optimized with time-domain integration of tracking errors being chosen as the objective function. The simulation results show that the aeroelastic responses of the wing follow the prospective reference trajectory well with application of the optimal voltage profiles. Continuous smooth dynamic shape control effect has been realized, and control precision has been improved.

Key words: flexible wings, piezoelectric fiber composite materials, MFC, aeroelasticity, feedforward control, quadratic programming

CLC Number: