一种新的风洞试验支撑机构横向弹性角校准方法

摘要

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.%To meet the need of side elastic angle calibration for wind tunnel model support,a research on new method for calibration is carried out by CARDC,which using force test balance as sensor rather than use standard weights.The efficiency of side elastic angle calibration was improved.The new calibration device was used in the wide-bodied airplane standard model wind tunnel force test in 2.4 m×2.4 m transonic wind tunnel of CARDC,the method,difficulty,purpose and the error analysis are also brought forward in this paper according to the wind tunnel test results.The new calibration method can be used for other projects.