上下動地面板による周辺噴流型GEMのheaving motionの模型実験

抄録

The heaving motion of a circular model GEM which is induced by the simple harmonic motion of the ground board is experimentally investigated.
The model hovers by the air supplied from external blowers and is guided vertically by means of its cylindrical part which is inserted into the fixed air duct and is free for vertical translation. The peripheral jet type nozzle attached to the model is exchangeable, and the experiments were conducted on two type nozzles, i.e. wide and narrow. The static hover, free vibration and forced vibration characteristics were studied.
The natural frequencies of each model calculated from the static characteristics are compared to the frequencies of the ground movement to which the models resonate, and the basic data for the heaving motion are presented in this report.