کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9707606 1466162 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The modal analysis of a pipe elbow with realistic boundary conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The modal analysis of a pipe elbow with realistic boundary conditions
چکیده انگلیسی
A vibration analysis for the determination of the natural frequencies and the associated eigenmodes of a pipe elbow with end-flanges or tangent terminations was performed. A numerical investigation of this problem was achieved with a semi-analytic definition finite ring element and a commercial finite element code. To assess the accuracy of the numerical solution for the elbow vibration, an experimental modal analysis was performed on a curved and on a straight pipe. The responses were processed by a data acquisition system which performs a fast Fourier transform on the time histories to convert them from a time to frequency domain, these leading to the extraction of natural frequencies and mode shapes associated with the test-specimen. The results were compared with the corresponding ones from the numerical approach and discussion about the results completes the paper.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pressure Vessels and Piping - Volume 82, Issue 8, August 2005, Pages 593-601
نویسندگان
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