Ground Simulation of the G-excess Illusion
2001
Objective To observe the subjects perception of orientation following certain head movements or change of simulator cab attitude in hypergravity(HG), and assess the feasibility of simulating G excess illusion on the ground by a centrifuge like Spatial Disorientation(SD) simulator. Method 1.6 G force field was gene rated by planetary rotation of the simulator. Perception of orientation of the cab were collected from twelve male pilots’ report following their heads pitch movements in pitch plane or cab attitude changes in roll plane under 1.6 G. Result While making a pitch up head movement,the pilots experienced a 63.8°±48.3° pitch up attitude change of the cab in pitch plane, and when the cab was tilted left 20°,pilots experienced a tilt left perception of 48.6°±39.4° in roll plane. Conclusion Although there’s strong Coriolis effects onboard the SD simulator under 1.6 G,most pilots experienced the G excess illusion.It demonstrated that it was feasible to use the centrifuge like device to generate this kind of illusion on the ground.
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