Study on Dynamic Characteristics of Seaplane at Different Gliding Speeds
Complex sea conditions put forward higher requirements for seaplane airworthiness and safety.In order to better analyze the law of seaplane water-skiing,this paper adopts the velocity inlet wave gen-eration method to build a numerical pool,and adopts the finite volume method combined with the integral dynamic grid method to realize the precise movement of the aircraft.The numerical simulation technology and typical mechanical characteristics of seaplane in the process of sliding on the wave surface were stud-ied,and the water resistance,motion response,bottom load response and overload response were analyzed under the condition of fifth-order nonlinear wave with wavelength 120m and wave height 2m.It is found that the seaplane's motion process has a good periodicity when it is gliding at low speed on the wave water surface.When the speed is larger,the phenomenon of the aircraft leaving the water appears,the attitude of the aircraft changes more violently,the vertical overload and water resistance appear apex peaks,and their values also increase with the increase of the speed.
seaplanenumerical water poolfinite volume methodwater gliding
万方数据
维普
