کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6953441 | 1451819 | 2019 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A variable resonance magnetorheological-fluid-based pendulum tuned mass damper for seismic vibration suppression
ترجمه فارسی عنوان
یک مخزن توده ای برای تنظیم لرزهای لرزاننده یک رشته مغناطیسی ریه ای-
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
مایعات مغناطیسی حفاظت از ساختمان، جذب لرزش، کمپرسورهای توده ای، دیفرانسیل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
چکیده انگلیسی
Seismic events leading to catastrophic outcomes around the world, particularly in built-up regions surrounding fault lines, often have high death tolls and cause costly damages to societies' existing infrastructure. To suppress damaging vibrations in multi-story buildings across a wide frequency spectrum, much research has been put into the study of variable-resonance tuned mass dampers, which maintain their usefulness across a range of frequencies, unlike passive alternatives. As a novel implementation of fast responsive magnetorheological materials to enable variable resonance, this paper presents a prototype magnetorheological-fluid-based pendulum tuned mass damper, integrating a differential gearbox to yield a damper-controlled transmission between the pendulum mass and a mechanical spring. The device is demonstrated to be highly effective, at its best reducing peak relative displacement by 12.8%, and peak acceleration by 22.0%, in contrast to comparable passive tuning modes in scale-building seismic experiments. This is owed to its controllable resonance which can be increased by 104% from its base value at 2.24â¯Hz. Further, other performance benefits are demonstrated in RMS structure displacement, and interstory drift ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 116, 1 February 2019, Pages 530-544
Journal: Mechanical Systems and Signal Processing - Volume 116, 1 February 2019, Pages 530-544
نویسندگان
M.D. Christie, S. Sun, L. Deng, D.H. Ning, H. Du, S.W. Zhang, W.H. Li,