基于小航线平飞段高度变化的噪声影响区域评估  

Noise Impact Area Assessment Based on Altitude Change in the Horizontal Flight Segments of Small Flight Routes

作　　者：黄学林 王观虎[1] 王伟[1] 唐伟 林肖雯 HUANG Xuelin;WANG Guanhu;WANG Wei;TANG;Wei LIN Xiaowen(College of Aerospace Engineering,University of Air Force Engineering,Xi’an 710038,China)

机构地区：[1]空军工程大学航空工程学院,西安710038

出　　处：《噪声与振动控制》2021年第4期176-181,共6页Noise and Vibration Control

摘　　要：为减少军用飞机飞行小航线时产生的噪声对机场周围居民的影响,利用INM软件构建我国军用飞机飞行小航线模型并仿真其产生的噪声,通过改变小航线平飞段的高度模拟噪声影响范围的变化,发现升高航线可以减少75 dB以上的噪声影响区域,特别在降落阶段变化尤为显著,起飞阶段转弯处的噪声影响区域先减小而后在600 m之后开始增加,当噪声敏感点集中在平飞段和降落阶段时,升高航线对于减少噪声影响比较显著,这可为降低飞机噪声对居民的影响提供思路。In order to reduce the impact of small route noise of military aircrafts on the residents around the airport,the INM software is used to build the military aircraft model and simulate the noise generated by the aircraft flying in the small routes.By changing the height of the horizontal flight segment of the small route,the change of the noise influence range is simulated.It is found that the noise influence area can be reduced by more than 75 dB by increasing the altitude of the flight route.Especially in the landing stage,the change of noise influence area is more obvious.In the takeoff stage,the noise influence area decreases initially and then increases later.When the noise sensitive points are concentrated in the level flight phase and landing stage,the effect of raising the flight route on the noise reduction is more significant.This finding provides ideas for reducing the impact of aircraft noise on residents.

关 键 词：声学 小航线 INM软件 平飞段 噪声敏感点 

分 类 号：X827[环境科学与工程—环境工程]