کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4977040 1451845 2017 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of model reduction techniques based on modal projection for structures with frequency-dependent damping
ترجمه فارسی عنوان
مقایسه تکنیک های کاهش مدل براساس طرح ریزی مدال برای سازه های با تغییر پذیری فرکانس
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی


- Reduction techniques based on modal projection are reviewed.
- Efficiency and accuracy of reviewed methods are compared through numerical examples.
- The multi-model approach offers the best compromise between accuracy and efficiency.

Frequency response functions are often used in the design of damped structures to assess the level of vibration and evaluate the performances of a damping treatment. Rather than evaluating frequency sweeps on a large-scale finite element system, the frequency response functions can be efficiently computed through model reduction techniques. This paper reviews and compares the reduction techniques based on modal projection which have been developed for structures with frequency-dependent damping, such as structures treated with constrained viscoelastic layers. The insight obtained by this comparison allows to make a motivated choice for a particular model reduction technique. All reviewed methods are quantitatively compared on two illustrative examples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 90, June 2017, Pages 110-125
نویسندگان
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