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环境噪声学进展   总被引:5,自引:0,他引:5       下载免费PDF全文
本文简要地回顾了30年来中国环境噪声学的发展,并从飞机噪声、地面运输噪声、环境噪声影响与评价以及工业噪声控制四个方面介绍了近年来环境噪声学的进展。  相似文献
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从建筑声学到环境声学   总被引:2,自引:0,他引:2       下载免费PDF全文
孙广荣 《应用声学》2002,21(1):46-49,39
本文简述环境声学的发展过程以及在厅堂音质、环境噪声和噪声控制方面的新世纪展望。  相似文献
3.
Large-scale outdoor field measurements were carried out on a residential building to assess the noise levels caused by pass-by trains that run on a nearby viaduct. The experimental results were compared with different schemes for predicting noise from trains. The octave band sound power levels of the train passing by, which are required as input parameters for the Nordic prediction method for train noise (NMT), CSTB 92 and ISO 9613-2 provided in the Mithra software, were determined by an inversion method. The method of calculation of railway noise (CRN) from the UK gives the best agreement with the measured results. The NMT prediction scheme also provides a good prediction of the general trend of the experimental data, but it always overestimates the measured noise levels. As far as the quantitative agreement with experimental data is concerned, the CSTB 92 and ISO 9613-2 prediction schemes are comparatively less satisfactory.  相似文献
4.
Towards the end of 1999, the building of one of the main communication routes in Spain was finished, the A-3 motorway, which connects Madrid and Valencia. So far, this road was running through the town Motilla de Palancar, province of Cuenca. The opening of the last section of the motorway on 3 December 1999, re-routes all the traffic passing through the town. This study makes a comparative of the noise levels before and after the opening of the motorway that goes through Motilla de Palancar.  相似文献
5.
A common problem for large factories that wish to decrease their environmental acoustic impact on neighbouring locations is to find out the acoustic power of every noise source. As these factories cannot stop their activity in order to measure each source individually, a procedure is needed to obtain the acoustic powers with the factory under normal operating conditions. Their contribution to the overall sound pressure level at each neighbouring location can then be found and it is possible to calculate the improvements obtained after any modification of the sources. In this paper an inversion modelling method is used to do so. Acoustic powers are obtained by means of field sound pressure level measurements and with the use of a sound propagation software. A careful analysis of the solution has been carried out by simulating errors on the measured data in order to detect possible correlations between the acoustic power of different sources and avoid misleading interpretations of the results. The whole methodology has been applied to a liquid-gas production factory.  相似文献
6.
为探究宗教信仰是否影响人对宗教建筑广场声景的心理感受,该研究基于声景生态学对声景元素的分类,通过模糊层次综合评价法构建由地球物理声、生物声和人工声3个准则层元素和16个指标层元素组成的宗教建筑广场声景评价体系。以哈尔滨市的5个教堂为例,对有宗教信仰和无宗教信仰的游客和居民进行调查。结果表明:有无宗教信仰的受访者对宗教建筑广场声景总体评价的结果分别为很好和较好;在准则层中,地球物理声的评价结果皆为较好,生物声的评价结果皆在一般及以上,而人工声则与生物声相反;有宗教信仰的受访者对除昆虫鸣叫声外的生物声景的评价等级均比无宗教信仰的受访者高一级,对广场广播声的评价等级比无宗教信仰的受访者低一级,其余指标的评价结果均一致。评价结果符合实际,为今后宗教建筑广场声景评价研究提供了有效方法。  相似文献
7.
吴硕贤  赵越喆 《应用声学》2013,32(5):331-335
本文介绍华南理工大学亚热带建筑科学国家重点实验室建筑声学子实验室近年来在人居声环境科学领域所开展的研究工作及取得的研究进展。人居声环境科学涵盖建筑声学、环境声学及声景学三个分支学科,分别对应于人居环境科学的三个主干一级学科,即建筑学、城乡规划学及风景园林学。其研究目的在于体现对人们的听觉关怀,创造一个良好的人居声环境。  相似文献
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