Research On Optimization And Energy Saving Of Aircraft Ground Taxiing Path

With the rapid development of economy and the improvement of people's living standards,energy saving and emission reduction have become the focus of daily life.In the civil aviation industry,Airlines hope to save fuel by taxiing aircraft on the ground,and airports hope to reduce environmental pollution.At present,the research on taxiing path planning of surface aircraft mainly focuses on the indexes related to taxiing time,but whether the reduction of taxiing time means the least fuel consumption is unknown.How to balance the two is the key to optimize taxiing path and achieve energy saving and emission reduction.Firstly,identifies and extracts the taxiing speed and the corresponding engine thrust in the aircraft operating parameters,and analyses the relationship between the taxiing state of the aircraft on the ground and the engine thrust.It is concluded that the engine thrust will change significantly only when the acceleration of the aircraft is large.On this basis,the model of aircraft ground taxiing time and fuel consumption is reasonably constructed,and the multiobjective optimization algorithm based on genetic algorithm is used to solve the problem.It is concluded that the reduction of aircraft ground taxiing time will lead to the increase of taxiing fuel consumption.Therefore,the taxiing path can not be planned and optimized solely for the purpose of aircraft taxiing time and taxiing delay time.Finally,genetic algorithm is used to analyze the taxiing cost of linear taxiway under specified weights.It is concluded that the essence of weight allocation for aircraft taxiing time and fuel consumption is to restrict the maximum taxiing speed of aircraft.After that,the conflict resolution strategy is proposed based on the analysis of aircraft ground taxiing conflict.The depth-first traversal algorithm is used for aircraft ground taxiing based on conflict resolution.Path selection and optimization.