航空发动机全机推力试车台测力方法与校准技术

为了实现航空发动机全机推力测量，研制了一种航空发动机装机条件下的推力测量平台，该平台采用“品”字形布局，嵌入到地面的试验地坑以下，实现了对不同类型飞机的推力测量。介绍了测量系统以及校准方法,使用该测量平台，分别对某大型运输机和战斗机进行了推力测量试验，实现了该两型飞机的推力测量，测量精度高，由于进排气以及发动机安装位置的影响，全机推力测量平台所测得的发动机装机推力与台架标准推力相比存在一定差距，运输类飞机推力损失一般小于3%，战斗机损失达到了5%～15.1%之间。

Force measurement method and calibration technology of aeroengine whole thrust test bed

In order to realize the whole aircraft thrust measurement of aeroengine, a thrust measurement platform under the condition of aeroengine installation was developed. With introduction of the “pin” shape layout, this platform was embedded under the ground test pit to realize the thrust measurement of different types of aircraft. The measurement system and calibration method were mainly introduced. Using this measurement platform, the thrust measurement test of a large transport aircraft was carried out, and the thrust measurement of this type of aircraft was realized, with high measurement accuracy. Due to the influence of intake and exhaust and engine installation position, there was a certain gap between the engine installed thrust measured by the full aircraft thrust measurement platform and the bench standard thrust, and the thrust loss of transport aircraft was generally less than 3%, Fighter losses ranged from 5% to 15.1%.