壓電驅動的發(fā)動機自適應葉片振動主動控制研究.pdf

1、南京航空航天大學碩士學位論文壓電驅動的發(fā)動機自適應葉片振動主動控制研究姓名：馮飛申請學位級別：碩士專業(yè)：測試計量技術及儀器指導教師：陳仁文20051201壓電驅動的發(fā)動機自適應葉片振動主動控制研究 IIABSTRACT Systematic theory and experimental investigation are carried out on active vibration control of adaptive lamin

2、a based on Smart Materials and Structures in the airplane engine applications. Grey Forecast Control algorithm is used to suppress the vibration of a plate lamina which simulates the adaptive lamina. Firstly, the basic p

3、rinciples of piezoelectric materials are introduced. Secondly, by D-optimization method and ANSYS mode analysis, the proper arrangement of piezoelectric sensors and actuators is determined. Thirdly, based on Grey System,

4、 a new algorithm——Grey Forecast Control algorithm is established and gfc.c is programmed by ANSI C in Turbo C2.0. Fourthly, by theoretical calculation and experimental measure, the characteristics of the plate lamina are

5、 acquired. Finally, experiments for plate lamina using GFC are carried out, and the results show that the designed system can control very well not only the vibration of plate lamina but also the adaptive lamina. Further

6、 more, theoretical and experimental compare between GFC and FX-LMS is given. Key words: Grey Forecast Control, Adaptive Lamina, Active Vibration Control, Piezoelectric Intelligent Structure, Mode Analysis, Location Optim