GENETIC ALGORITHM OPTIMAL ARRANGEMENT OF POSITIVE AND NEGATIVE STIFFNESS DAMPERS FOR HYBRID DAMPING BASED ON SEISMIC WAVES METHOD

A new parametric method for ranking fuzzy numbers based on positive and negative ideal solutions

A hybrid model based on machine learning and genetic algorithm for detecting fraud in financial statements

Financial statement fraud has increasingly become a serious problem for business, government, and investors. In fact, this threatens the reliability of capital markets, corporate heads, and even the audit profession. Auditors in particular face their apparent inability to detect large-scale fraud, and there are various ways to identify this problem. In order to identify this problem, the majori...

application of upfc based on svpwm for power quality improvement

در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...

FRAGILITY CURVES FOR STRUCTURES EQUIPPED WITH OPTIMAL SATMDs

In this paper, a procedure has been presented to develop fragility curves of structures equipped with optimal variable damping or stiffness semi-active tuned mass dampers (SATMDs). To determine proper variable damping or stiffness of semi-active devices in each time step, instantaneous optimal control algorithm with clipped control concept has been used. Optimal SATMDs have been designed based ...

Advanced damper with high stiffness and high hysteresis damping based on negative structural stiffness

0020-7683/$ see front matter 2013 Elsevier Ltd. A http://dx.doi.org/10.1016/j.ijsolstr.2013.03.018 ⇑ Corresponding authors. Tel.: +1 608 346 7275 (L. Don E-mail addresses: [email protected] (L. (R. Lakes). High structural damping combined with high stiffness is achieved by negative stiffness elements. Negative incremental structural stiffness occurs when a column with flat ends is subjecte...