کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6955712 1451860 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Global optimisation methods for poroelastic material characterisation using a clamped sample in a Kundt tube setup
ترجمه فارسی عنوان
روش های بهینه سازی جهانی برای مشخص کردن خصوصیات ماده پرآلودگی با استفاده از یک نمونه گیرنده در یک لوله کوندت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
The Biot theory is commonly used for the simulation of the vibro-acoustic behaviour of poroelastic materials. However, it relies on a number of material parameters. These can be hard to characterize and require dedicated measurement setups, yielding a time-consuming and costly characterisation. This paper presents a characterisation method which is able to identify all material parameters using only an impedance tube. The method relies on the assumption that the sample is clamped within the tube, that the shear wave is excited and that the acoustic field is no longer one-dimensional. This paper numerically shows the potential of the developed method. It therefore performs a sensitivity analysis of the quantification parameters, i.e. reflection coefficients and relative pressures, and a parameter estimation using global optimisation methods. A 3-step procedure is developed and validated. It is shown that even in the presence of numerically simulated noise this procedure leads to a robust parameter estimation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volumes 68–69, February 2016, Pages 462-478
نویسندگان
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