نتایج جستجو برای: nonlinear time history analyses
تعداد نتایج: 2644546 فیلتر نتایج به سال:
Base isolation has been used as one of the most wildly accepted seismic protection systems that should substantially dissociate a superstructure from its substructure resting on a shaking ground, thereby sustainably preserving entire structures against earthquake forces as well as inside non-structural integrities. Base isolation devices can operate very effectively against near-fault (NF) grou...
The development of mathematical models for describing the dynamic behaviours of fluid conveying pipes, micro-pipes and nanotubes under the influence of some thermo-mechanical parameters results into nonlinear equations that are very difficult to solve analytically. In cases where the exact analytical solutions are presented either in implicit or explicit forms, high skills and rigorous mathemat...
Prospective epidemiologic studies on the association between body mass index (BMI) and bladder cancer yielded inconsistent findings. This study sought to quantitatively summarize the evidence by performing a dose-response meta-analysis on prospective cohort studies. Eligible studies were retrieved via PubMed and Embase databases, and by manual review of the references. Linear and nonlinear tren...
this paper is mainly focused on noise pollution problems related to the use of wind turbines. the installed turbines are vestas v52 and the farm map under study is a typical rural area in south italy, in which a wind farm has been recently installed and made operative. since the area is rural and the number of vehicles per hour is negligible, noise emitted by roads does not affect the predictio...
the purpose of this paper is to studying nonlinear k-ε turbulence models and its advantages in internal combustion engines, since the standard k-ε model is incapable of representing the anisotropy of turbulence intensities and fails to express the reynolds stresses adequately in rotating flows. therefore, this model is not only incapable of expressing the anisotropy of turbulence in an engine c...
in this paper, optimum location of power system stabilizers in order to damp inter-area oscillations has been investigated by using modal series method. nonlinear effects grow in dynamical behaviors of heavily loaded stressed power systems significantly. hence linear based methods and techniques no longer present clear and exact response of the systems. in this article by defining new nonlinear...
Based on capacity design philosophy, considering the dissipated and non-dissipated parts in structures, the behavior factor is specified in codes. according to the standard Iranian code of practice, the behavior factors for structures with different bracing systems are the same. whilst each system dissipates energy in different ways. In this research, the nonlinear dynamic behavior of structur...
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