کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4977041 | 1451845 | 2017 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical and experimental investigation into structural and fluid motions at low frequencies in water distribution pipes
ترجمه فارسی عنوان
بررسی تئوری و تجربی برای حرکات ساختاری و مایع در فرکانس های پایین در لوله های توزیع آب
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کلمات کلیدی
لوله توزیع آب، جابجایی دیوار لوله، فشار داخلی، موج مغناطیسی، سنسور،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
Numerical examples show the relative insensitivity of the structural and fluid motions to the s = 2 wave for both metallic and plastic pipes buried in two typical soils. It is also demonstrated that although both acoustic and vibration sensors at the same location provide the identical phase information of the transmitted signals, pressure responses have significantly higher levels than acceleration responses, and thus hydrophones are better suited in a low signal-to-noise ratio (SNR) environment. This is supported by experimental work carried out at a leak detection facility. Additional pressure measurements involved excitation of the fluid and the pipe fitting (hydrant) on a dedicated water pipe. This work demonstrates that the s = 1 wave is mainly responsible for the structural and fluid motions at low frequencies in water distribution pipes as a result of water leakage and direct pipe excitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 90, June 2017, Pages 126-140
Journal: Mechanical Systems and Signal Processing - Volume 90, June 2017, Pages 126-140
نویسندگان
Yan Gao, Yuyou Liu,