کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
754481 895857 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The noise directivity of railbuses
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The noise directivity of railbuses
چکیده انگلیسی

In this paper the noise generated by the railbuses is analysed. To find the directivity index of the railbuses a method of its estimation was proposed. This method is based on the assumption of symmetrical changes in the sound level during the passage of a railbus. The four directivity indices were analysed: monopole, cosine, squared cosine and cubed cosine. We find that the monopole directivity is the best to describe the noise generation by the moving railbuses.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Acoustics - Volume 72, Issue 9, September 2011, Pages 653–659
نویسندگان
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