Considering the shrouded blades of aeronautic engine and roll s lifting motor tray as combination cantilever plates,three coupled nonlinear differential equations of motion of cantilever plates are derived from the theory of thin elastic plate with the effects of damping and geometric large-amplitude vibration taken into account.

The placement rule of piezosensors and piezoactuators for cantilevered plate is given,and the piezoelectric control equation based on distributed piezoelectric actuators for cantilevered plate including bending and torsion modes is derived,and the control methods can be designed using this equation.

Self-shaking and shaking control of pressing cantilever board;

The paper adopts composites layer board model to analyse functionally gradient materials cantilever board.

Aimed at the unreasonable calculation methods for cantilever slabs of concrete box girders,based on FEM and some kinds of calculation methods,a analyses is performed by sub-model technique to study the influence of several parameters,such as distortion for box girders,length and degree of slope for cantilever slabs as well as load location.