涡桨发动机方案阶段经济可承受性分析

The affordability analysis for turboprop engine in planning stage

基于涡桨发动机经济可承受指标的定义,建立了涡桨发动机方案阶段的技术指标体系,提出了涡桨发动机全寿命周期费用指标及估算方法。给出了涡桨发动机方案阶段性能/费用权衡分析、全寿命周期费用估算及经济可承受性指标分析的过程,并以同一涡桨发动机为基准,对比分析了单转子方案和双转子方案的经济可承受性,最终得出该型发动机双转子方案经济可承受性更优的结论。

Based on the definition of affordability index for the turboprop engine, the technical index system of turboprop engine in planning stage was established, and life cycle cost index as well as estimation method were proposed. The analysis process of performance/cost tradeoff, life cycle cost and affordability index of turboprop engine in planning stage was introduced, and with the same turboprop engine as a benchmark, affordability of the single-rotor engine and the dual-rotor engine was compared ,finally the conclusion was obtained that the dual-rotor engine program is more affordable .