کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11003995 1466565 2018 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Moving orifice circular liquid column damper for controlling torsionally coupled vibration
ترجمه فارسی عنوان
دمپایی محفظه دیافراگم دیافراگم حرکتی برای کنترل لرزش پیچشی شده
کلمات کلیدی
ساختمان پیچیده متصل شده، کنترل لرزش، دیافراگم تنظیم مایع اسپیندل ستون، دیافراگم حرکتی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
The effectiveness of the Tuned Liquid Column Damper (TLCD) has been established in controlling the vibration of structures from wind or earthquakes. The present study demonstrates the effectiveness of the Circular Liquid Column Ball Damper (CLCBD), in conjunction with the Tuned Liquid Column Ball Damper (TLCBD) in controlling torsionally coupled vibration of building subjected to wind excitations. Unlike TLCDs, these devices are equipped with moving orifice, implemented via steel balls, placed at the middle of the liquid tube. The set of equations of motion of the combined structure-damper system are derived using the Lagrange's approach. The optimal performance is ensured through selection of optimal parameters by minimization the stochastic responses, obtained from random vibration analysis. This is in order to adequately take care of the stochastic excitations. The optimal performances are further verified in respect to the time history responses under simulated wind excitations. Parametric studies are conducted to assess the performance robustness. The proposed TLCBD-CLCBD system offers enhanced control efficiency and significant reduction of the displacement of liquid column than the TLCD. Experimental investigation using Shake table test facility also corroborate with the findings from the analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 82, October 2018, Pages 357-374
نویسندگان
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