Search Results - "Cui, X. Z"

Time–Frequency Spectral Representation Models to Simulate Nonstationary Processes and Their Use to Generate Ground Motions by Hong, H. P, Cui, X. Z

“…AbstractIn the present study, two new models are proposed to model nonstationary stochastic processes with time-frequency-dependent spectra and coherence. The…”
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Erratum for “Time–Frequency Spectral Representation Models to Simulate Nonstationary Processes and Their Use to Generate Ground Motions” by H. P. Hong and X. Z. Cui by Hong, H. P, Cui, X. Z

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Conditional Simulation of Spatially Varying Multicomponent Nonstationary Ground Motions: Bias and Ill Condition by Cui, X. Z, Hong, H. P

“…AbstractThe application of the spectral representation method to the conditional simulation of ground motions can break down because of nonconvergence in…”
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An algorithm to simulate nonstationary and non-Gaussian stochastic processes by Hong, H. P., Cui, X. Z., Qiao, D.

“…We proposed a new iterative power and amplitude correction (IPAC) algorithm to simulate nonstationary and non-Gaussian processes. The proposed algorithm is…”
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Functionalization of 3-D porous thermoplastic polyurethane scaffolds by two-stage polydopamine/hydroxyapatite composite nanoparticles by Cui, Z. X., Shen, S., Wu, J. H., Si, J. H., Wang, Q. T., Turng, L-S., Chen, W. Z.

“…In this work' the polydopamine (PDA) coating layer was first applied to modify hydroxyapatite (HA) nanoparticles and then the functional PDA/HA (pHA) composite…”
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Simulating nonstationary and non‐Gaussian vector ground motions with time‐ and frequency‐dependent lagged coherence by Cui, X. Z., Hong, H. P.

“…Seismic ground motions at multiple sites are nonstationary and non‐Gaussian with potentially time‐ and frequency‐dependent coherence, although the…”
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On the Gaussian and Non-Gaussian Characteristics of Nonstationary Seismic Ground Motions by Cui, X. Z., Hong, H. P.

“…AbstractIn earthquake engineering, seismic ground motions are most often modelled as a nonstationary Gaussian process. A few studies indicated that seismic…”
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A time‐frequency dependent coherence model for seismic ground motions by Cui, X.Z., Hong, H.P.

“…There are several well‐known empirical lagged spatial coherence models for seismic ground motions proposed in the literature. The models are often developed…”
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On the Estimation of Power Spectral Density and Lagged Coherence of Time Transformed Nonstationary Seismic Ground Motions and Their Use to Simulate Synthetic Records by Hong, H.P., Cui, X.Z.

“…Ground motions could be modelled as amplitude and frequency modulated process. The frequency modulation through a time transformation results in the modelled…”
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Stochastic modelling of the pulse-like near-fault ground motions with time-frequency representation by Liu, Y. X., Cui, X. Z., Hong, H. P.

“…Seismic near-fault ground motions differ from those in the far-field. They could contain large amplitude and long period velocity pulses and cause damage to…”
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A finite cantilevered cylinder in a cross-flow by Liu, Y., So, R.M.C., Cui, Z.X.

“…Numerous factors contribute to the three-dimensional behavior of the wake behind a finite cylinder with relatively large aspect ratio in a cross flow; among…”
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Simulating nonstationary non-Gaussian vector process based on continuous wavelet transform by Hong, H.P., Cui, X.Z., Qiao, D.

“…•Proposed a new algorithm to simulate nonstationary non-Gaussian vector process.•Used continuous wavelet transform with Littlewood-Paley & generalized Morse…”
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Low-Frequency Characteristics of Vibrations Induced by Transient Unloading of In Situ Stress and Its Influence on Safety of a Deeply Buried Tunnel by Fan, Y., Yang, G. D., Cui, X. Z., Zhao, X. H., Wu, J. G., Wang, L. H.

“…High in situ stress is a typical geological characteristic of tunnel excavation in hydropower projects in Southwest China. First, the spectrum characteristics…”
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A model to simulate multidimensional nonstationary and non-Gaussian fields based on S-transform by Hong, H.P., Cui, X.Z., Zhou, W.X.

“…•Provided a new model for multidimensional nonstationary and non-Gaussian field S-transform.•Proposed a new iterative algorithm to simulate multidimensional…”
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Decomposing seismic accelerograms with optimized window and its application for generating artificial fully non-Gaussian and nonstationary ground motion time histories by Cui, X.Z., Hong, H.P.

“…In the present study, we propose a framework to simulate artificial seismic ground motion time histories for a given target record based on the time-frequency…”
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Modeling and simulating nonhomogeneous non-Gaussian corrosion fields on buried pipelines and its use in predicting burst capacities of corroded pipelines by Zhou, W., Bao, J., Cui, X.Z., Hong, H.P.

“…•Characterize corrosions on pipelines as nonhomogeneous non-Gaussian random fields.•Propose an algorithm to simulate nonhomogeneous non-Gaussian corrosion…”
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Three-dimensional wake effects on flow-induced forces by So, R.M.C., Liu, Y., Cui, Z.X., Zhang, C.H., Wang, X.Q.

“…Numerical simulations are carried out for a long slender rigid circular cylinder in a cross-flow to examine three-dimensional (3-D) wake effects on the…”
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Bluff body flow simulation using lattice Boltzmann equation with multiple relaxation time by Liu, Y., So, R.M.C., Cui, Z.X.

“…Numerical simulations using multiple-relaxation-time lattice Boltzmann model (MRT-LBM) are carried out for a long slender rigid circular cylinder in a cross…”
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Reliability of stability of single-layer latticed shells with spatially correlated initial geometric imperfection modeled using conditional autoregressive model by Cui, X.Z., Li, Y.G., Hong, H.P.

“…•Assess critical load for latticed shells considering initial geometric imperfection.•Assess the probability distribution of critical load factor.•Investigate…”
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Effect of spatially correlated initial geometric imperfection on reliability of spherical latticed shell considering global instability by Cui, X.Z., Li, Y.G., Hong, H.P.

“…•Used simultaneous autoregressive (SAR) model for the initial geometric imperfection.•Assessed statistics of initial imperfection by using the SAR model for a…”
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