کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
560626 1451881 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Iterative finite element model updating in the time domain
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Iterative finite element model updating in the time domain
چکیده انگلیسی

An iterative time domain formulation for finite element model updating in structural dynamics is presented. The approach is supported on a derivation showing that the discrepancy between observations and model predictions can be expressed as a convolution between the state of the system and a sequence of pseudo-Markov parameters which are linear in the change of the free parameters. The approach is illustrated by updating all the stiffness and damping parameters of a twenty degree of freedom shear beam using four noise contaminated measurements.


► Finite element model updating in the time domain.
► The proposed method is capable of updating stiffness and damping parameters.
► High ratio of updatable parameters to number of measurements.
► Robustness against measurement noise.
► Low correlation between estimation errors of multiple parameters.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 34, Issues 1–2, January 2013, Pages 39–46
نویسندگان
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