2.4m跨声速风洞大型飞机试验不确定度评估

2.4m跨声速风洞作为中国目前唯一的大型跨声速气动力试验设备,在中国大型飞机研制中发挥着十分重要的作用。因此,对该风洞试验数据质量的评估、控制和改进提高是一项紧迫的工作。笔者通过完善不确定度计算方法、详细标定基本不确定度源和编制评估软件等工作,建立了该风洞大型飞机试验的不确定度评估方法,并对某大型飞机模型试验结果开展了具体的评估与分析,澄清了该风洞大型飞机试验数据的质量水平。

Uncertainty analysis for large aircraft test in 2.4m transonic wind tunnel

As the one and only large transonic ground testing facility in China,2.4m transonic wind tunnel plays a great role in the large aircraft development program.Since the high quality requirements for large aircraft model test,there is an urgent need to assess,control and improve the quality of test results obtained in the tunnel.This paper introduces the establishment of quality assessment system of wind tunnel test data for large aircraft,including perfecting the uncertainty method,calibrating the uncertainty...