Study On The Mechanism Of Aircraft Noise Impact And Taxiing Optimisation On The Airport Field

With the booming development of the aviation industry,the turnover and flight movements are increasing year by year,and the noise impact generated by aircraft and operational vehicles during the operation of the airport is strong,especially the airport operators need to be exposed to huge aviation noise for a long time.At the same time,with the general improvement of public awareness of environmental protection,the airport noise problem has become one of the key concerns of various departments of civil aviation.This thesis aims to reveal the noise sources and their propagation mechanisms from the perspective of airport field operation.Firstly,the relationship between different operating conditions of aircraft and noise in the airport surface is considered,and the process of aircraft operation and noise generation is analyzed and determined.There are four cases: single fixed-point aircraft on fixed-point people,single moving aircraft on fixed-point people,multiple moving aircraft on fixed-point people,and multiple moving aircraft on moving-point people.Secondly,the operation process and characteristics of aircraft in the airport flight area,the relationship between single aircraft taxiing noise and fixed taxi path is modeled.The model takes a single aircraft as the research object,field taxiing on a fixed taxiing line,takes taxiing speed optimization as the entry point,dissects the specific relationship between aircraft taxiing time and noise,and uses the whale algorithm(WOA)to dissect the taxiing strategy based on the optimal taxiing time and noise.And thirdly,the single-aircraft model is extended to multi-aircraft full-field operation,and the optimization of taxiing line is added on the basis of speed optimization.Also,considering the taxiing conflict problem of multiple aircraft in field taxiing,a time and noise based airport field taxiing path optimization model is established,and the optimal taxiing time and noise emission in field taxiing is explored using genetic algorithm(GA)and applied by example.Finally,we summarize the research results done in this paper on airport field noise,and point out the shortcomings,and look forward to the future research on airport field taxiing noise,and have some reference significance for energy saving and noise reduction in flight area.