水上飞机纵向稳定性判别方法研究

水上飞机的稳定性不论在水上飞机的设计阶段还是试验阶段都是设计人员关注的焦点,稳定性是水上飞机在水面安全起降、滑行的保证。为解决传统水上飞机稳定性判别方法的难操作性,结合滑行艇稳定界限估算方法,对已开展且具有代表性的水上飞机单船身稳性试验结果进行了计算分析、总结,并采用数据优化等方法得到了纵稳性限界拟合方程,通过相关试验数据的逆向校核,证明了所得回归公式的准确性。经多次验证,方法不仅可以在开展单船身模型试验时用以确定后续工况,还能为水上飞机的纵向稳性性能研究提供参考。

Method of Distinguish Longitudinal Motion Stability of Seaplane

The stability of seaplane is the focal point for designer whenever in the design and test stage, such characteristic is also the safe guarantee for seaplane when it＇s rising, landing and planing. To solve the difficult operation of conventional stability analysis method, this paper is try to calculate and analysis the experimental result of the hull of seaplane by stability limit estimated method of planning craft. And then we acquire the limit equation of the longitudinal motion stability which is also proved correctly though reverse check by test result. Such method can not only use for determine the test state of hydraulic test of the hull of seaplane, but also provide reference for the longitudinal motion stability of seaplane.