This research was funded by the Open Funds for the Hubei Key Laboratory of Marine Geological Resources (Grant No. MGR202204), the Changjiang River Scientific Research Institute (CRSRI) Open Research Program (Grant No. CKWV20221025/KY), and the National Natural Science Foundation of China (Grant No. 51709015).
机构署名：
本校为第一且通讯机构
院系归属：
土木工程与建筑学院
摘要：
Numerical seismic wave field simulation is essential for studying the dynamic responses in semi-infinite space, and the absorbing boundary setting is critical for simulation accuracy. This study addresses spherical waves incident from the free boundary by applying dynamic equations and Rayleigh damping. A new multi-directional viscous damping absorbing boundary (MVDB) method is proposed based on regional attenuation. An approximate formula for the damping value is established, which can achieve absorbing the boundary setting by only solving the mass damping coefficients without increasing the ...
