直升机发动机装机功率损失试飞研究

摘要

基于涡轴发动机相似理论，结合某样例直升机发动机的装机特点，对装机前后发动机转速NG-P特性进行了对比，对影响变化的因素进行了分析讨论，提出了针对具体的发动机装机位置、飞行状态、飞行环境进行综合装机功率损失的试验思路。%Based on the similarity theory of turbine engines and considering the layout feature of the engines on the sample helicopter, comparisons had been made on the NG-P characteristics of the engines before and after assembled to the helicopter, and analysis had been performed on the influential factors. A proposal had been propounded on the helicopter lfight test of engine power loss, which is overall considering the major inlfuential factors including assemble schemes, lfight regimes, lfight environment and so on.