在任意方向水平风作用下悬停时的飞行特性研究

直升机在任意方向水平风作用下悬停时的飞行特性,是评定直升机性能的一项重要指标。本文以风洞试验数据为依据,对在任意方向水平作用下的机身、垂尾和尾桨气动特性进行了研究。并以某机为例,对风速为23m/s、16m/s、10m/s进行了平衡计算,其结果是满意的。本方法对确定直升机操纵范围或抗风能力有很重要的参考价值。

FLIGHT PERFORMANCE STUDY IN HOVERS UNDER LEVEL WIND IN ANY DIRECTION

The performance when helicopter hovers under level wind in any direction is one of the most important indexes to review the helicopter performance.This peper is based on the wind tunnel experiment data and studies the air dynamic performance of fuselage,horizontal stabilizer and fin under level wind in any direction.Giving some helicopter as a example,we have carried out the balance compution at wind rates of 23m/s,16m/s and l0m/s and the result is satisfying.The way has important reference value to determine helicopter control arrange or anti-wind ability.