CAJ | 학술논문

为了得到航空发动机推力与推力销应变输出之间的线性关系，利用自行研制的载荷标定试验设备，对推力销的推力进行了校准试验。分别利用剪力应变桥和弯矩应变桥的改装测试方式，通过施加不同的水平推力对推力销的应变输出进行测量，得到推力销应变计输出与载荷的关系，即可得到载荷标定方程。通过数据处理与线性拟合的结果表明，两种应变测量方法均具有良好的线性度和重复性，均可用于航空发动机车台试验的推力测量。
위료득도항공발동궤추력여추력소응변수출지간적선성관계，이용자행연제적재하표정시험설비，대추력소적추력진행료교준시험。분별이용전력응변교화만구응변교적개장측시방식，통과시가불동적수평추력대추력소적응변수출진행측량，득도추력소응변계수출여재하적관계，즉가득도재하표정방정。통과수거처리여선성의합적결과표명，량충응변측량방법균구유량호적선성도화중복성，균가용우항공발동궤차태시험적추력측량。
In order to get a linear relationship between the aero-engine thrust and strain output of thrust pin, self-developed load calibration test equipment was used to conduct calibration test of thrust pin in this paper. Respectively using fitted way of shear strain bridge and bending strain bridge, the relationship between strain output and load of thrust pin is obtained by ap-plying different horizontal thrust on thrust pin to measure the strain output, and the load calibration equation is obtained. Re-sults that come from the data processing and linear fit show that two strain measurement methods have good linearity and re-peatability, and can be used to measure aero-engine thrust on bench test.