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小展弦比飞翼布局的纵横向气动特性差异大,对天平测量与校准提出了较大挑战。专用天平针对其气动载荷特点和气动力试验需求,通过对常规片梁和柱梁组合的组合测量元件进行改进,提高了横向载荷的测量灵敏度,使得组合元件满足天平除轴向力外的5个分量的灵敏度测量需要。天平选用横Π型梁作为轴向力的测量梁,降低了其他分量对轴向力的干扰。在天平校准时通过施加纵向冲击振动的工程方法完成天平加载头的安全拆卸并应用于模型的拆卸。研制的天平已完成了相关风洞测力试验。
Small aspect ratio flying wing layout of vertical and horizontal aerodynamic characteristics of large differences in balance measurement and calibration presented a greater challenge. Dedicated balance for its aerodynamic load characteristics and aerodynamic test requirements, through the combination of conventional sheet girder and column beam combination of improved measurement elements to improve the lateral load measurement sensitivity, making the combination of components in addition to the balance of axial force in addition to the sensitivity of the five components Measurement needs. Balance selection of horizontal Π beam as a measuring beam of axial force, reducing the interference of other components of the axial force. In the balance calibration through the application of longitudinal impact vibration engineering methods to complete the safe removal of the balance head and applied to the demolition of the model. The developed balance has completed the wind tunnel test.