نتایج جستجو برای: hysteretic loss

تعداد نتایج: 448313  

2007
M. Bruneau

Hysteretic energy dissipation in conventional structural configurations can be undesirable if it is achieved by the damage of primary structural members. Ideally, this hysteretic energy dissipation should occur in structural elements that are “disposable” (i.e., structural fuses that can be replaced without disturbance to the main system, just like real fuses). Much work has been accomplished o...

2011
Michael Grinfeld Harbir Lamba

Following the approach of [22], we derive a system of FokkerPlanck equations to model a stock-market in which hysteretic agents can take long and short positions. We show numerically that the resulting mesoscopic model has rich behaviour, being hysteretic at the mesoscale and allowing bubbles and volatility clustering in particular.

Journal: :Sensors and actuators. A, Physical 2009
U-Xuan Tan Win Tun Latt Ferdinan Widjaja Cheng Yap Shee Cameron N Riviere Wei Tech Ang

With the increasing popularity of actuators involving smart materials like piezoelectric, control of such materials becomes important. The existence of the inherent hysteretic behavior hinders the tracking accuracy of the actuators. To make matters worse, the hysteretic behavior changes with rate. One of the suggested ways is to have a feedforward controller to linearize the relationship betwee...

2017
Kotaro Kojima Izuru Takewaki

Citation: Kojima K and Takewaki I (2017) Critical Steady-State Response of Single-Degree-of-Freedom Bilinear Hysteretic System under Multi Impulse as Substitute of Long-Duration Ground Motion. Front. Built Environ. 3:41. doi: 10.3389/fbuil.2017.00041 Critical Steady-State Response of Single-Degree-of-Freedom Bilinear Hysteretic System under Multi Impulse as Substitute of Long-Duration Ground Mo...

Journal: :Physical Review E 2016

The variation of earthquake input energy with characteristics of various structural systems, particularly in hysteretic states, has not been studied to such extent that creates enough con-fidence for proposing energy-based design criteria. In this paper, at first, based on a somehow new insight into the concept of earthquake input energy, two concepts of ‘Received Energy’ (ERec) and ‘Returned E...

Journal: :Physical review letters 2001
P M Hoffmann S Jeffery J B Pethica H O Ozer A Oral

Atomic scale dissipation is of great interest in nanomechanics and atomic manipulation. We present dissipation measurements with a linearized, ultra-small amplitude atomic force microscope which is capable of measuring dissipation at chosen, fixed separations. We show that the dynamic dissipation in the noncontact regime is of the order of a few 10-100 meV per cycle. This dissipation is likely ...

Journal: :Physical review letters 2010
T Picot R Schouten C J P M Harmans J E Mooij

Quantum state detectors based on switching of hysteretic Josephson junctions biased close to their critical current are simple to use but have strong backaction. We show that the backaction of a dc-switching detector can be considerably reduced by limiting the switching voltage and using a fast cryogenic amplifier, such that a single readout can be completed within 25 ns at a repetition rate of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده فنی و مهندسی 1391

در این پروژه فیلترهای مایکرواستریپ جدیدی برای به‎‎دست آوردن اندازه‎ی فشرده، پاسخ تیز و نیز باند قطع عریض ارائه‎ شده است که از جمله‎ی آن ها فیلتری است که از سری شدن یک رزوناتور شاخه‎ای منتهی به نیم‎دایره و یک تکه‎ی‎ شعاعی بهبود یافته به عنوان تضعیف کننده‎ی هارمونیک، تشکیل شده است. فرکانس قطع -3 db این فیلتر در 1.54 ghz قرار دارد. باند‎ گذر این فیلتر تنها 0.26 ghz است که شامل محدوده‎ی فرکانسی 1.5...

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