Research on wave motion response characteristics of a seaplane

Abstract

As one of the criteria hydrodynamic qualities, sea-keeping performance is closely related with a seaplane’s security, comfortableness, durability. This paper is proposed to study the wave motion response characteristics of a seaplane based on wave model test. Firstly, similarity criterions, determination of test parameters, experiment equipment and data processing method are introduced. Then, based on test results, we analyse the influence of wave parameters, sliding velocity and deadweight on wave motion. It indicates that there is a positive relationship between wave height and motion response, while the acceleration decreases with the increase of wave length, and its peak value occur at the short wave length region of 0.5 to 1 times hull length of the seaplane, heave and pitch angle first increase then decrease with the change of wave length. The influence of sliding speed on heave and pitch angle depends on wave length, but the acceleration varies positive with change of velocity. The influence of heave and pitch angle has no obvious correlation with deadweight, while the acceleration shows a negative trend with change of deadweight. These regularity can be used to provide some reference for the analysis of wave motion response characteristics of seaplane.