The perforated plate is key to the equipment of hydrodynamic cavitation which applies the multiple hole orifice as generator,the parameters of the perforated plate,such as the diameter of hole,the number of holes,the distribution of holes,plate thickness,play very important role in the effect of cavitation.

The model experiment of round gravity cage with different stress on different marshalling patterns;

Model test on the volumetric maintenance rate of round gravity cage in the different marshalling patterns;

Material Failure Process Analysis(MFPA~(2D)) code adopted to discuss the influence of hole distribution on the macroscopic mechanical behavior and failure mechanism of perforated materials from the viewpoints of microscopic mechanics and damage mechanics.

The dependences of the microstructure and other properties of the composites on the distribution manner of fiber such as both 2D fabric and needle punching felt were investigated.