摘要
城市户内变电站的建立解决了城市电力需求,同时产生的噪声对环境也造成了严重污染。在城市变电站设计初期预估其噪声声压级水平(SPL),及时采取降噪措施显得尤为重要。应用VA One软件,基于统计能量分析方法建立声学仿真模型,对某典型户内变电站的主变室内外空间声场进行模拟。探讨声源声压级强度、吸声墙高度和吸声系数对噪声场声压级的影响规律,为进一步对户内变电站噪声预报和降噪设计提供参考。
The indoor substations in cities have solved the problem of citizen electricity necessity, while they causeserious noise pollution. It is particularly important for the preliminary design to predict the Sound Pressure Level （SPL） ofthe substation noise, so as to take further measures to reduce the noise. In this paper, taking a typical indoor substation as anexample, a model for acoustic simulation based on statistical energy analysis method is established and analyzed with thesoftware VA One, and the indoor and outdoor sound fields of the main transformer chamber of the substation are simulated.Then, the effects of the intensity of the sound source SPL, the height and the absorption coefficient of the sound-absorbingwall on the SPL of the sound fields are studied. This work gives a reference for noise prediction and noise reduction designof indoor substations.
出处
《噪声与振动控制》
CSCD
2014年第6期126-130,共5页
Noise and Vibration Control
关键词
声学
户内变电站
噪声模拟
VAOne
统计能量法
acoustics
indoor substation
noise simulation
VA One
statistical energy analysis method
