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利用并行有限元程序生成系统PFEPG,以MPI作为并行编程环境,考虑结构自重、渗流压力、动水压力(采用附加质量模拟)、温度变化、地震波、坝面的水及泥沙压力等荷载,采用黏弹性边界模拟外行波向远域地基辐射,利用时域显式解法求解方程,编制了考虑接触非线性问题的水工结构动态响应有限元程序,并以溪洛渡拱坝的地震动态响应分析为例进行了测试。结果表明,该程序具有较高的并行度和良好的并行效率。
The parallel finite element program PFEPG is used to generate the system PFI as a parallel programming environment, taking into account the structural self-weight, seepage pressure, hydrodynamic pressure (with additional mass simulation), temperature changes, seismic waves, dam surface water and sediment pressure loads Viscoelastic boundary is used to simulate the external wave radiation to the far-field foundation. The time-domain explicit solution method is used to solve the equations. The finite element program of hydraulic structure dynamic response considering contact nonlinearity is developed. Taking the dynamic response analysis of Xiluodu arch dam as an example taking the test. The results show that the program has high parallelism and good parallel efficiency.