飞行试验抖振载荷统计技术

Buffet load statistical technique of flight test

随着现代飞机使用要求的不断提高,飞机抖振问题越发突出。在借鉴F/A-18和F/A-22等飞机抖振载荷试飞的基础上,分析、归纳了抖振载荷试飞方法和测量方法,并利用功率谱密度法、统计学方法对某型运输机抖振载荷数据进行了分析研究。结果表明,这些方法在飞机抖振载荷研究方面具有较好的应用价值。

With the increase flight requirements of modem aircraft, buffeting is becoming into a more and more serious problem. Buffet flight test and measurement methods were analyzed and summarized in this article based on the investigation on aircraft buffet load flight test technique used on F/A-18 and F/A-22. Power spectrum density technique and statistics method were applied to certain transport aircraft to analyze buffet load. The results show that the methods used in this paper are very practical in aircraft buffet load study.