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Theoretical calculation and experiment on impact loads of landing of wing-in-ground aircraft on water surface
Received date: 2016-01-11
Revised date: 2016-08-29
Online published: 2016-09-06
Supported by
Civil Aircraft Special Research Program (MJ-2015-F-028)
The symmetric step of hull landing of the wing-in-ground (WIG) aircraft on water surface, which is the most serious situation, is considered. All the factors influencing the impact are analyzed. A theoretic calculation method is proposed based on the assumption of strip theory of ship motion combining with Von Karman's momentum equation for hydrodynamics and Wagner's formula for calculation of added mass. Experimental results of the impacting loads are compared with those of theoretical calculation. It is shown that the experiment results are in good agreement with the calculation results, indicating that the theoretical evaluation can provide to a great extent useful information for the design of the WIG aircraft.
CHU Lintang , WU Bin , WANG Mingzhen , SUN Feng . Theoretical calculation and experiment on impact loads of landing of wing-in-ground aircraft on water surface[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016 , 37(12) : 3698 -3705 . DOI: 10.7527/S1000-6893.2016.0245
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