旋翼诱速的横向分布

被引：2

作者：

王适存

机构：

[1] 南京航空学院

来源：

航空学报 | 1988年 / 11期

关键词：

旋翼空气动力学; 诱导速度; 分布;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

直升机前飞时,旋翼平面处诱速的横向分布,究竟前行桨叶半边大还是后行半边大,迄今无定论。本文根据经典涡流理论,全面分析环量Γ_o及Γ1s对诱速横向系数υ1s的贡献,然后利用桨叶挥舞条件,通过Γ_o及Γ1s,不同分布的组合情况进行估算,发现存在着一个临界半径位置。在临界半径以外υ1s为负,即前行桨叶的诱速小于后行半边的;在临界半径以内υ1s为正,前行桨叶的诱速大于后行桨叶的。上述结果得到实验证实。

引用

页码：515 / 520

页数：6

共 12 条

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