نتایج جستجو برای: ground motion simulation
تعداد نتایج: 872012 فیلتر نتایج به سال:
There are valuable investigations on the amplification effects of the topography on the seismic response in the frequency domain; however, a question is that how one can estimate the amplification of time domain peak ground acceleration (PGA), peak ground velocity (PGV), and peak ground displacement (PGD) over the topographic structures. In this study, the numerical approach has been used for t...
We present a parallel octree-based finite element method for large-scale earthquake ground motion simulation in realistic basins. The octree representation combines the low memory per node and good cache performance of finite difference methods with the spatial adaptivity to local seismic wavelengths characteristic of unstructured finite element methods. Several tests are provided to verify the...
A recently developed nonstationary stochastic model of strong earthquake ground motion is described. The model employs filtering of a white-noise process, where nonstationarity is achieved by modulating the intensity and varying the filter parameters in time. The model is fitted to a target accelerogram by matching a set of statistical measures that characterize the evolution of the intensity, ...
Introduction: Most of the functional disorders in the foot are created by changes in the arch of the foot. The motion control shoes are designed to control the excessive rear foot motions. The aim of this study was to evaluate the effect of long-term use of motion control shoe on the ground reaction force components in individuals with functional pronated feet during running. Methods: The prese...
earlier studies have shown conclusively that a tuned liquid damper (tld) is effective for controlling vibrations in structures subjected to narrow-banded wind excitations. a recent numerical study has shown that if the design parameters of a tld are properly set, this device could also be very effective for controlling structural vibration to broad-banded earthquake excitations. here the result...
Incremental dynamic analysis (IDA) requires the analysis of the non-linear response history of a structure for an ensemble of ground motions, each scaled to multiple levels of intensity and selected to cover the entire range of structural response. Recognizing that IDA of practical structures is computationally demanding, an approximate procedure based on the reduction of the number of ground m...
Maintaining the functionality, productivity, and safety of communities necessitates the seismic reliability of lifeline infrastructure networks. However, assessing the reliability of an infrastructure network is a nontrivial task due to the variability of ground motion and the complexity of the response of the network resulting from that ground motion. Even more challenging is the task of ident...
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