DESIGN AND TESTING OF A VIBRATORY PEANUT DIGGER

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American Society of Agricultural Engineers

دانلود ebook کتاب FUNDAMENTALS OF POLYMER ENGINEERING

اختصاصی از فی توو دانلود ebook کتاب FUNDAMENTALS OF POLYMER ENGINEERING دانلود با لینک مستقیم و پر سرعت .

دانلود ebook کتاب  FUNDAMENTALS OF POLYMER ENGINEERING

توضیحات پشت جلد

FUNDAMENTALS OF  

POLYMER ENGINEERING

Second Edition
Revised and Expanded

Anil Kumar
Indian Institute of Technology
Kanpur, India

Rakesh K. Gupta

West Virginia University

Morgantown, West Virginia, U.S.A

Passive Control of Steel Structures Utilizing Cylindrical Friction Dampers

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نویسند‌گان:

[ h Mirzaeefard ] - M.Sc. Graduate, Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran,

[ h.r samani ] - Instructor, Department of Civil Engineering, Islamic Azad University – Pardis Branch, Tehran, Iran

[ m mirtaheri ] - Associate Professor, Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran

خلاصه مقاله:

In this investigation, seismic response of steel structures utilizing Cylindrical Frictional Dampers (CFD) is studied. CFD is an innovative frictional damper which comprises two principal elements, the shaft and the hollow cylinder. These two elements are assembled such that one is shrink-fitted inside the other. If the damper’s axial force overcomes the static friction load, the shaft inside the cylinder will move and results in considerable mechanical energy absorption. To assess the efficacy of CFD, various steel frames are constructed and analyzed using OpenSees software. Nonlinear time history analyses and Incremental Dynamic Analysis (IDA) are applied to the frames and clear distinction has been drawn between the frames comprising CFD and the counterparts without CFD to emphasize the effectiveness of CFD in altering seismic responses. The results show that CFD extremely improves the seismic response of the structure

کلمات کلیدی:

Passive control, Cylindrical Frictional Damper, Incremental Dynamic Analysis, Seismic response