دانلود مقاله ISI انگلیسی شماره 81334
ترجمه فارسی عنوان مقاله

روش تجربی برای تجزیه و تحلیل دینامیکی سازه های بلند و باریک بر اساس تکنیک های پردازش تصویر دیجیتال

عنوان انگلیسی
Experimental methodology for the dynamic analysis of slender structures based on digital image processing techniques
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
81334 2010 14 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Mechanical Systems and Signal Processing, Volume 24, Issue 5, July 2010, Pages 1369–1382

ترجمه کلمات کلیدی
تجزیه و تحلیل تجربی پویا - اندازه گیری جابجایی بدون تماس؛ پردازش تصویر دیجیتال - تغییر شکل های بزرگ
کلمات کلیدی انگلیسی
Dynamic experimental analysis; Non-contact displacement measurements; Digital image processing; Large deflections
پیش نمایش مقاله
پیش نمایش مقاله  روش تجربی برای تجزیه و تحلیل دینامیکی سازه های بلند و باریک بر اساس تکنیک های پردازش تصویر دیجیتال

چکیده انگلیسی

There are several problems in engineering where the structural response may be affected by conventional devices for displacement measurements. This work presents an alternative methodology for the experimental dynamic analysis of structures, which cannot be monitored by conventional sensors. This methodology is based on digital image acquisition and processing techniques. The importance of this methodology is that it enables one to perform non-contact displacement measurements, without introducing undesirable changes in the structure's behavior, as for example, in models with an extremely reduced scale. The proposed methodology uses sticking markers of a negligible mass in relation to the structure, facilitating the implementation of the instrumentation of the experimental test. To evaluate the efficiency, precision and accuracy of this methodology, two different experimental tests are carried out and the obtained results are favorably compared with the theoretical results and with the ones provided by conventional sensors. This has shown to be a highly cost-effective and easy to implement experimental procedure for the analysis of very flexible structures, and yet maintains the advantage of dynamic measurements with high resolution.