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室内窄频带低频噪声烦恼度与治理对策研究
引用本文:翟国庆,张邦俊,童美萍.室内窄频带低频噪声烦恼度与治理对策研究[J].浙江大学学报(理学版),2002,29(1):87-93.
作者姓名:翟国庆  张邦俊  童美萍
作者单位:浙江大学,环境科学系,浙江,杭州,310028
摘    要:低声级噪声对人们产生的影响目前尚未引起足够的重视,针对住宅楼底层箱式变压器引起的室内结构声污染,采用模糊数学原理进行了噪声烦恼度研究,发现在低频低噪声环境下(等效连续A声级<35dB),仍能引起较高的烦恼概率,且噪声大小与噪声烦恼度仍存在着较好的关联关系;对于同一中心声级的噪声,室内噪声烦恼概率的改变主要是由于室内噪声频谱特性改变所致;在低噪声级环境下,小幅度增强中高频噪声,利用噪声的掩蔽效应,可降低噪声烦恼。这为改变工作或生活场所室内声环境质量提供了一个新的思路。在声学分析的基础上,提出了以隔振为主防治对策,获得理想效果。

关 键 词:低频低噪声  主观烦恼度  结构声  电力变压器  噪声控制  室内噪声污染  掩蔽效应  隔振
文章编号:1008-9497(2002)01-0087-07
修稿时间:2001年4月30日

Study on subjective annoyance and control method of indoor low-level and low-frequency noise and it's control.
DI Guo\|qing,ZHANG Bang\|jun,TONG Mei\|ping.Study on subjective annoyance and control method of indoor low-level and low-frequency noise and it''''s control.[J].Journal of Zhejiang University(Sciences Edition),2002,29(1):87-93.
Authors:DI Guo\|qing  ZHANG Bang\|jun  TONG Mei\|ping
Abstract:For the transformer and switchboard, which lies in the first floor of house, results from indoor structural noise pollution, using fuzzy mathematic principle to study noise subjective annoyance threshold level, it is found that low\|level noise (\%L\-\{Aeq\%\}<35dB) can cause higher probability of subjective annoyance, the relationship of indoor noise and noise annoyance is still good on low ambient noise. The change of indoor noise annoyance probability to the same centered noise level is mainly caused by the change of indoor noise frequency spectrum characteristic\|the increasing medium\|low frequency noise, a little increasing of medium\|high frequency noise level in low noise without changing the medium\|low frequency noise can decrease the noise annoyance by using the noise sheltering effect. This gives a new idea on changing the acoustic environmental quality of working or living places. Based on acoustic analyses, a control method is also given, and the results is good.
Keywords:low\|frequency and low\|level noise  subjective annoyance  transformer and switchboard noise  structural noise
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