A new inverse modeling is investigated for reconstructing the seismic ground motions in an interior domain surrounded by a domain reduction method (DRM) boundary from limited seismic measurement data. The non-convolutional second-order complex-frequency-shifted perfectly matched layers (CFS-PML) is used to truncate a two-dimensional semi-infinite domain of a plane-strain setting, and the DRM is utilized to model seismic input motions coming from the outside domain of the CFS-PML. A partial differential equation (PDE)-constrained optimization method aims at minimizing a misfit between measured motions at sensors on the surface induced by targeted incident waves (or equivalent effective forces on a DRM boundary) and their reconstructed counterparts induced by estimated effective forces. The numerical results show that the targeted wave responses in an interior domain surrounded by a DRM boundary can be accurately reconstructed.
|State||Published - 2022|
|Event||12th National Conference on Earthquake Engineering, NCEE 2022 - Salt Lake City, United States|
Duration: Jun 27 2022 → Jul 1 2022
|Conference||12th National Conference on Earthquake Engineering, NCEE 2022|
|City||Salt Lake City|
|Period||06/27/22 → 07/1/22|