考虑飞机排放因素的飞机巡航性能参数优化方法

Optimization method of aircraft cruise performance parameters considering pollution emissions

巡航是民航飞机主要的飞行阶段,航班飞行中绝大多数的燃油消耗、飞行时间和污染物排放均发生在该阶段。基于国际民航组织(ICAO)基准排放数据和BM2方法,建立了污染物排放量和排放成本计算模型;提出污染物排放价格权重、成本指数排放因子和综合成本指数概念,以改进飞行成本计算模型,考虑污染物排放对飞行成本优化的影响;通过计算分析输入成本指数对性能参数和飞行成本的影响,建立了基于搜索方法的综合成本指数优化流程,并采用Visual Studio予以开发实现;然后计算了综合成本指数飞行的经济效益,以及飞机质量、成本指数和巡航高度对飞行成本的影响。结果表明,选择合适的综合成本指数和巡航高度,可使总飞行成本达到最小,提高运行经济性。与传统巡航相比,在典型情况下采用综合成本指数巡航可以降低相同条件下的总飞行成本的0.15%。

Cruise is the main flight phase for civil aircraft, and most of the fuel consumption, flight time and pollutants are consumed or produced in this phase. The pollutant emission calculation model and emission cost model are established based on the International Civil Aviation Organization （ICAO） basic emission data and BM2 methods. In order to consider the effect of pollution emission, the concepts of price weight for pollution emission, cost index emission factor and integrated cost index are proposed in this paper to improve the total flight cost model. Due to calculating and analyzing the influence of inputted cost index on flight cost, the optimum flow chart for calculating integrated cost index is established based on optimum search method. The emission calculation software is developed by Visual Studio for calculating the economic income for cruise flight using integrated cost index. Meanwhile, based on result data calculated by the software, the impacts of initial cruise mass, cost index and cruise altitude on flight cost are also analyzed. The results show that the flight cost can achieve the minimum by choosing adequate integrated cost index and cruise altitude, as other conditions are constant. Compared with traditional flight mode, the total flight cost can decrease 0.15% at given flight condition.