Research On Shape Control Of Intelligent Antenna Structure With Random Parameters

Shape control for intelligent antenna structures with random parameters is an important task in the field of engineering structural research, study and control today. In this paper. the research of antenna structural static shape analysis. shape controls for piezoelectric intelligent antenna structure and gain optimization of closed loop control system are studied. Firstly, a novel structural model of intelligent parabolic antenna is presented and analysis of antenna's special truss based on finite element method is performed. Furthermore, the problems of displacement response analysis of closed loop control system based on reliability for.the intelligent antenna structures with random parameters were studied, in which the randomness of physics parameters of structural material and applied loads and control forces are considered. In addition, a constant output proportional feedback control method is applied to closed control system of intelligent antenna structure. The optimal mathematical model with the reliability constraints on reflector precision, stress and displacement is built. In this optimal mathematical model, gain of control system is regarded as design variable, minimization of dissipation.electric energy is the object function and the reliability constraints on reflector precision is treated by using equivalent displaying treatment methods. Finally, an intelligent antenna structure with 8-meter's caliber was used as an example to demonstrate the rationality and effect of presented model and approach in structure shape control.