کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
729485 1461493 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An optimized method to evaluate the performance of trench isolation for railway-induced vibration
ترجمه فارسی عنوان
یک روش بهینه برای ارزیابی عملکرد جداسازی ترانشه برای ارتعاش ناشی از راه آهن
کلمات کلیدی
ارتعاشات زمینی، تجزیه و تحلیل فرکانس زمان، تبدیل بسته های موجکی گسسته
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی


• A trench realized to reduce railway-induced vibrations is characterized.
• Acceleration measurements were performed on a high-speed railway line.
• Different signal-processing algorithms are discussed.
• The high potential of the wavelet approach is shown.

A variety of technologies are employed to reduce ground borne vibrations near railway lines. In this paper, the performances of different signal-processing algorithms are discussed in an effort to define an optimized methodological approach for evaluating the reduction potential of mitigation techniques. Different post-processing analysis methods have been applied to acceleration data collected during the passage of a train in order to evaluate the performance of a trench realized to improve the quality of life near railway lines. RMS computation at steady-state and amplitude of frequencies in the averaged spectra were used as a first assessment procedure, while joint time–frequency analysis were used for the characterization of the signals during transients. The possibilities provided by wavelet techniques were then investigated and compared with those of the classical Fourier analysis. Experimental results show that the wavelet approach can be used both to evaluate the effectiveness of the mitigation techniques, and to analyze the structure of the acceleration signals generated by trains.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 94, December 2016, Pages 92–102
نویسندگان
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