降低噪声影响的进场航线路径优化

随着航空运输迅猛发展,航空噪声污染日益严重。为减缓航空噪声问题,从分析航空噪声评价方法入手,考虑越障、航段转弯、绕飞限制区等条件,以噪声影响人口数最小作为优化目标,构建了终端区进场航线优化模型,采用角度扩展法改进A*算法,获得噪声影响较小的进场航线路径。选取上海虹桥机场仿真验证,结合机场实际流量分布进行实例分析。计算结果表明:路径优化后,暴露于65 d B及以上噪声下的人口数由44万削减到21万,航线长度也大幅减小,缩短11. 49%,油耗减少31. 07%。评估结果表明,提出的终端区进场航线路径优化模型能有效减缓航空噪声、降低噪声影响,且在缩短航线,降低油耗方面发挥优势。

Study on Path Optimization of Approach Route with Noise Reduction

With the rapid development of air transport, aviation noise pollution has become increasingly prominent. In order to alleviate the problem of aviation noise, the paper takes into account the conditions such as obstacle crossing, segment turn, around the fly limit area, and takes the minimum number of population affected by noise as the terminal route optimization target. At the same time, the method of aviation noise evaluation is analyzed, and the route optimization model of terminal approach route is constructed. By using the path optimization algorithm of A * based on the angle propagation method to obtain the route of noise reduction. Finally, taking the Hongqiao Airport in Shanghai as an example, this paper analyzes the traffic distribution of all models on the route of AND. The results show that the population under 65 dB or more is reduced from 440,000 to 210,000, also the length of the route is greatly reduced by 11.49%, fuel consumption reduced by 31.07%. Therefore, the proposed route optimization model of the terminal area can effectively reduce the aviation noise and reduce the noise impact, and play an advantage in shortening the route and reducing the fuel consumption.