水橇参数对水橇降载性能的影响研究

文章利用MSC.Dytran的一般耦合法对水上飞机有无水橇时着水运动过程进行仿真,并将仿真结果与相关试验值进行对比以验证方法的有效性。采用该方法研究了水橇参数对水橇降载性能的影响规律,研究表明,水橇降载性能受水橇长宽比、水橇静负荷系数、水橇底部斜升角等参数的影响。研究表明在一定的合理范围内水橇长宽比增加可增大其降载效果;水橇静负荷系数减小,水橇的降载效果增加;水橇底部斜升角控制在15°~20°之间,可使水橇的降载率达30%以上。

Study on the influence of hydro-ski load reducing performance of hydro-ski parameters

General coupling method of MSC.Dytran was used to simulate the water landing performance of a seaplane with and without hydro-ski, the comparison between the calculated results and the model test was carried out to prove the effective of the method using in this paper. The study on load reducing rule corresponding to some parameters such as length-width ratio, static load factor and deadline angle of hydro-ski was carried out by using the simulation method mentioned above. The results show that the load reduced ratio could be increased with the increasing of hydro-ski length-width ratio and the reducing of static load factor, with the deadline angle of hydro-ski about 15 to 20 degrees, the load reduced ratio could be 30% above.