After Robert P. CILEMAN, a great many researches on the ground resonance of helicopter have been developed by a lot of scholars.
Yet we have not enough to the experimental data until now, and some excellent and simplified analytical methods for this problem are needed.
In this paper, the comparison are set up between the experimental results and the numerical calculations in the new method.
That was suggested by Dr. Isamu IMAXHI.
An agreement between them is very well.
It is concluded that the present work has some contribution for the analysis of ground resonance of helicopter.
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