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A finite-difference time-domain (FDTD) method models moving vehicle ground motion in 3D geologic environments, producing results similar to those from actual field experiments. Simulations provide a low-cost alternative to traditional prototype development schemes, which rely on expensive field tests.
In this paper we present seismic signature simulations using ground vibration inputs from highfidelity 3-D mechanical system models. Results for an M1A1 and T72 are discussed. By analyzing the simulated seismic signature data in conjunction with the spectral features associated with the vibrations of specific vehicle sprung and un-sprung components we are… (More)