نتایج جستجو برای: mdof systems
تعداد نتایج: 1183463 فیلتر نتایج به سال:
Abstract In this paper, a hybrid control system (HCS) endowing base isolation (BIS) with Tuned Mass Damper Inerter (TMDI) is proposed for the protection of steel storage tanks from severe structural damages induced by seismic events. Among all components industrial plants, cylindrical are widely spread and play primary role when subjected to hazard, since they suffer many critical issues relate...
fuzzy control systems have had various applications in a wide range of science and engineering in recent years. since an unstable control system is typically useless and potentially dangerous, stability is the most important requirement for any control system (including fuzzy control system). conceptually, there are two types of stability for control systems: lyapunov stability (a special case ...
Fixed base structures subjected to earthquake forces are prone various issues, such as the attraction of greater structure, amplified accelerations non-structural components, expensive design for better seismic performance, and so forth. Base isolation applied at foundation vulnerable is a radical bypass from conventional approaches utilized by structural engineers. However, practical implement...
The advent of distributed optical fiber sensing technologies has made continuous and dense measurement possible, a very broad application prospect in the field structural health monitoring. However, not all them are able to guarantee accuracy good condition compared traditional sensors, such as FBGs (Fiber Bragg Grating sensor), strain gauges, etc. In our previous study (Cheng et al., 2019) cal...
The wind-induced responses of tall buildings are stochastic processes, and the peak factor is an important parameter to evaluate extreme value response in wind-resistant design. existing research on mainly focuses wind pressure building surface, but rarely concerns structures. In view this, super-high-rise was studied this paper. Firstly, a series tunnel tests multi-degree-of-freedom aero-elast...
We revisit a unique building system including base-isolation, building-connection hybrid control system. The base-isolation withstands pulse-type earthquake ground motions effectively and the resists long-duration efficiently. A simple smart critical response evaluation method without nonlinear time-history analysis is proposed for this under near-fault motions. An analytical expression of maxi...
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
introduction: nowadays, the widespread distribution of hospital information systems (his) in healthcare institutions requires professional evaluation to assess the practical usefulness of these applications. nursing staff are the largest group of staff in a hospital and play an important role in the adoption and evaluation of hiss. methods: this was a descriptive, analytic, cross-sectional stud...
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