离场飞机噪声环境影响预测分析及优化  

Prediction analysis and optimization of environmental impact caused by departing aircraft noise

作　　者：赵悦 张凯月 ZHAO Yue;ZHANG Kai-yue(College of Airport Engineering,Civil Aviation Flight University of China,Deyang 618000,Sichuan,China)

机构地区：[1]中国民用航空飞行学院机场学院,四川德阳618000

出　　处：《安全与环境学报》2023年第4期1299-1304,共6页Journal of Safety and Environment

基　　金：中国民用航空飞行学院2020年度学院科研项目(J2020-053)。

摘　　要：基于航迹聚类的飞机噪声快速预测方法,通过航空环境设计工具(Aviation Environmental Design Tool, AEDT)建立飞机噪声环境影响预测模型,对成都双流机场某日离场航班的飞机噪声环境影响进行预测分析及优化。预测结果表明离场飞机噪声70 dB以上的区域面积约19.58 km2,该区域内居民的工作、生活受到飞机噪声的干扰。采取机型组合优化措施,飞机噪声计权等效连续感觉噪声级(WECPNL)70 dB等值线区域内相同位置的飞机噪声WECPNL可降低0.5~1.7 dB;采取飞行剖面优化措施,飞机噪声WECPNL70 dB等值线区域内相同位置的飞机噪声WECPNL可降低0~5 dB;机型组合优化、飞行剖面优化均可在一定程度上控制飞机噪声对机场周围区域的影响,可综合考虑采取优化措施以降低离场飞机噪声对机场周围区域的干扰。Based on the fast prediction method of aircraft noise,an aircraft noise prediction model is established through the Aviation Environmental Design Tool(AEDT).In this prediction model,the DBSCAN(density-based spatial clustering of applications with noise)clustering algorithm is used to cluster and analyze the two-dimensional radar trajectories of flights in the airport terminal area,the cluster centroid trajectory is calculated by spatially averaging all the trajectories in the cluster,then the representative track of the cluster is obtained by selecting the real flight trajectory which is closest to the centroid trajectory.It is found that the noise prediction result difference between the two calculation methods(using the representative track or using all the scattered trajectories in the cluster)is very small,so the representative track is used in the aircraft noise prediction model to simplify the flight trajectories simulation in the cluster,and reduce the complexity of aircraft noise prediction model.Using this prediction model,the aircraft noise environmental impacts of departure flights at Chengdu Shuangliu Airport are predicted,analyzed,and optimized.The prediction results show that the area of the region with departure aircraft noise above 70 dB is about 19.58 square kilometers,and the work and lives of residents in this area are disturbed by aircraft noise.When the optimal measures of the aircraft combination are adopted,the weighted equivalent continuous perceived noise level(WECPNL)of the aircraft noise at the same position in the WECPNL 70 dB contour area is reduced by 0.5-1.7 dB;when the optimization measures of the flight profile are adopted,the aircraft noise WECPNL at the same position in the WECPNL 70 dB contour area is reduced by 0-5 dB;aircraft combination optimization and flight profile optimization is found to control the impact of aircraft noise on the surrounding area of the airport to a certain extent,optimization measures could be comprehensively considered to reduce the interference of d

关 键 词：环境工程学 飞机噪声 航空环境设计工具(AEDT) 降噪操作程序 航迹聚类 

分 类 号：X593[环境科学与工程—环境工程]