2D FDM SIMULATION OF SEISMIC OSCILLATION IN LOCAL TERRAIN
By the finite difference method,the two-dimensional elastic wave equation is processed to get the finite difference equation.Under the stability condition,the initial,boundary and absorbing boundaries are written as discrete forms for constructing the finite difference equations of wave motion problem.A FDM program package for elastic wave motion problem is developed.The geometric parameters can be input automatically into the program based on the true geometry for solving the seismic wave problem in the real complex terrain.The partial terrain of Mount Lu is simulated by the FDM program to obtain the time history of its displacement,velocity and acceleration.Then,the effects of different topography and different hypocenter depths on propagation of seismic wave on the surface are analyzed.At last,the influence of topography on seismic waves and dynamic response on free surface is discussed.
Local terrain Wave motion FDM Absorbing boundary Free boundary
Zai-lin YANG Jian-wei ZHANG Fa-qiang QIU Cheng SUN Xu-sheng LUO
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, P.R.China, 150001 Xiamen Inspection Center of Engineering, Xiamen, P.R.China, 361004
国际会议
The 2015 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2015全国压电和声波理论及器件技术研讨会)
济南
英文
394-397
2015-10-30（万方平台首次上网日期，不代表论文的发表时间）