中文摘要：

飞行器设计中的某些物理量需要进行数值分析和试验，而两者之间常常存在差别。本文分析了产生这些误差的原因，提出将试验结果和数值计算结果的差值表达为所在域空间坐标的二次多项式，可有效地消除试验随机误差和数值计算噪声，使数值计算结果与实验数据融合。文中分析了某教练机机翼气动载荷和AD200轻型飞机挠度的数据融合，结果表明本文提出的数据融合方法是有效的。

英文摘要：

Experiments and numerical simulations are carried out to obtain the values or distributions of design variables. And there exists a difference between experimental and numerical results. The reasons for causing the difference are discussed firstly, and then the difference is described by a two-order polynomial in the design space. Finally, the random error created in experiments and truncation errors produced in numerical simulations can be reduced or eliminated. Thus the experimental and numerical resuits are fused together to produce a new more reasonable result. Two examples are given in this paper based on the proposed method. One is the data fusion between wind tunnel experimental result and CFD simulation of pressure distribution of a train plane wing; the other one is that between experimental resuits and FEM results of the displacement of a light plane wing. Results show that the data fusion method is reasonabl＇e.