摘要
飞机噪声评价方法的多元化反映了机场噪声问题的复杂性,我国采用计权等效连续感觉噪声级L_(WECPN),而国际上广泛采用昼夜等效声级L_(dn)。我国建筑室内噪声评价量采用的是等效声级L_(eq),与计权等效连续感觉噪声级难以横向比较。为了解决机场噪声影响区的噪声治理适用标准问题,首先对L_(WECPN)、L_(dn)和L_(eq)三者的内涵进行分析,通过实测数据分析L_(WECPN)与另两个评价量之间的关系,证明L_(WECPN)与L_(dn)之间在数值上存在13 d B的差距,给出L_(WECPN)与相应的昼间和夜间等效声级L_(eq)上限值的对应关系,并分析背景噪声对评价量的影响。
The diversity of aircraft noise evaluation methods reflects the complexity of airport noise problem. The weighted equivalent continuous perceived noise level（L（WECPN）） is used as an evaluation index in our country, while the daynight average sound level（L（dn）） is widely used as an evaluation index in the world. The equivalent sound level（L（eq）） is used as an indoor noise evaluation index in our country, which is hardly to transversely compare with the L（WECPN）. In order to solve the standard problem of noise control in airport noise impact area, the connotations of the above three indexes are analyzed. The relations between L（WECPN）and the other two indexes are analyzed according to the measurement data. It is proved that there is a 13 d B difference between L（WECPN）and L（dn）. The relationships between L（WECPN）and the corresponding day-night equivalent sound level L（eq）are also given. Finally, the influence of background noise on the evaluations indexes is analyzed.
作者
张慧娟
郝大力
王辰辉
朱德林
赵春仁
康钟绪
ZHANG Huijuan;HAO Dali;WANG Chenhui;ZHU Delin;ZHAO Chunren;KANG Zhongxu(Beijing Municipal Institute of Labour Protection,Beijing 100054,China;Beijing Municipal Commission of Development and Reform,Beijing 100031,China)
出处
《噪声与振动控制》
CSCD
2018年第3期128-131,共4页
Noise and Vibration Control
