Auteur Liu, Pengcheng
Documents disponibles écrits par cet auteur (4)
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Liu, Pengcheng, Auteur ; Archuleta, Ralph J., Auteur |The effects of Q are currently incorporated into numerical time-domain simulations of wave propagation by using a set of discrete relaxation functions. The behavior of these relaxation functions is controlled by the selection of the weight coeff[...]
Article : texte imprimé
Liu, Pengcheng, Auteur ; Custódio, Susana, Auteur ; Archuleta, Ralph J., Auteur |The 2004 M 6.0 Parkfield earthquake yielded one of the largest amounts of near-source strong ground motion seismic data ever. We invert strong-motion seismograms to obtain a model for the space–time distribution of coseismic slip on the fault. T[...]
Article : texte imprimé
Shuo Ma, Auteur ; Liu, Pengcheng, Auteur |We present an implementation of the perfectly matched layer (PML) absorbing boundary conditions and modeling of intrinsic attenuation (Q) in explicit finite-element simulations of wave propagation. The finite-element method uses one integration [...]
Article : texte imprimé
Liu, Pengcheng, Auteur ; Archuleta, Ralph J., Auteur ; Hartzell, Stephen, Auteur |We present a new method for calculating broadband time histories of ground motion based on a hybrid low-frequency/high-frequency approach with correlated source parameters. Using a finite-difference method we calculate low- frequency synthetics [...]
