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为了获得风洞测力试验模型受载后的实际侧滑角,提出了一种新的风洞测力试验模型支撑系统横向弹性角现场校准方法,其特点是校准过程中以风洞测力天平作为力值传感器,替代作为标准载荷的砝码;并依托在中国空气动力研究与发展中心2.4 m×2.4 m跨声速风洞进行的宽体客机标模测力试验,对研究方法的具体方案、技术难点、解决途径和误差评定进行了论证说明;结果表明:该校准方法和误差评定方式具有一定的工程意义。
In order to obtain the actual side slip angle after wind-tunnel test, the new method for on-site lateral elastic angle measurement of wind tunnel test system is proposed, which is characterized by that the wind-force level As a force sensor instead of the weight as a standard load; and relying on the 2.4 m × 2.4 m transonic wind tunnel in China Aerodynamic Research and Development Center of the wide-body passenger plane model force test, the specific methods of research methods, Technical difficulties, solutions and error assessment. The results show that the calibration method and error assessment methods have certain engineering significance.