涡轮导向器喉道面积三坐标测量不确定度评估  

Measurement Uncertainty Evaluation of Turbine Nozzle Throat Area Measured by Coordinate Measurement Machine

作　　者：王振兴 范明争 张盛珺 曹玮 WANG Zhenxing;FAN Mingzheng;ZHANG Shengjun;CAO Wei(AECC Shanghai Commercial Aircraft Engine Manufacturing Co.,Ltd,Shanghai 201306,China)

机构地区：[1]中国航发上海商用航空发动机制造有限责任公司,上海201306

出　　处：《航空制造技术》2022年第5期68-74,共7页Aeronautical Manufacturing Technology

摘　　要：针对当前涡轮导向器喉道面积三坐标测量不确定度评估研究的不足,通过分析测量过程和测量原理,给出了一种涡轮导向器喉道面积三坐标测量不确定度评估模型。最后结合测量实例对单喉道面积测量不确定度及全环面积测量不确定度进行了评估。评估结果表明,所选用的三坐标测量方法可以满足涡轮导向器喉道面积的设计要求。For the shortage of the current study on measurement uncertainty evaluation of turbine nozzle throat area measured by coordinate measurement machine(CMM),a measurement uncertainty evaluation model of turbine nozzle throat area measured by CMM was proposed by analyzing measurement procedure and principle.Finally,measurement uncertainties of single throat area and area of all throat in circle were evaluated according to a measurement case.The evaluation result shows the CMM method could meet the design requirement of turbine nozzle throat area.

关 键 词：喉道面积 测量不确定度 三坐标测量机(CMM) 民用航空发动机 评估方法 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]