航空发动机无论是研制、成批生产或翻修后都要经过台架试车来检验发动机的推力、耗油率及空气流量等性能参数,考核制造或翻修后的质量。多年来随着航空技术的发展,发动机的流量越来越大,推力越来越高,到六十年 The aeroengine, whether developed, mass-produced or rebuilt, must pass the bench test to test the engine’s thrust, fuel consumption and air flow and other performance parameters to assess the quality of the manufacture or renovation. Over the years with the development of aviation technology, the engine flow is more and more thrust higher and higher, to six decades