In order to improve static balancing accuracy of vertical rotor , a set of air-suspending measuring devices were developed ,its nucleus was an air static pressure ball-bearing to suspend the rotor stably.

The mathematical models of gas pressure distribution in the clearance,gas leakage and radial load capacity were established using a compressible fluid model,and an optimization design method using nondominated sorting genetic algorithm-II(NSGA-II) was put forward to optimize the structural parameters of air-suspending frictionless cylinders which were used in the suspension system for modal test.

The process flow and characteristics of flue gas cleaning system with gas suspension absorber are introduced.

Simulation analysis is done to the suspention gap changes running on the ramp for the maglev train .

In application of cannon launched suspension shell,under condition of limited cavity and upper projecting speed,to realize balloon suspension is very difficulty,the key is quick gas-charging in air after projecting and reaching stable state.