کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6956683 | 1451876 | 2013 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A component damping identification method for mistuned blisks
ترجمه فارسی عنوان
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
Different components of a structure can have different damping characteristics, and that affects the dynamic response of the overall system. Herein, we assume that damping has a simple form only at a component level. That leads to a complex damping model at a system level. A new method is introduced which identifies the component damping of a structure. This method is applied to mistuned blisks in regions of low and high modal density. The method incorporates reduced-order models, and remains accurate in the presence of measurement noise. Results are shown for a mistuned blisk with varying levels of measurement noise. The accuracy of damping identification is observed through a forced response prediction and amplification factor study. Also, a discussion on the effects of damping and stiffness mistuning on the maximum response is presented. Some differences between component and modal damping are highlighted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 41, Issues 1â2, December 2013, Pages 598-612
Journal: Mechanical Systems and Signal Processing - Volume 41, Issues 1â2, December 2013, Pages 598-612
نویسندگان
D.E. Holland, B.I. Epureanu,