水工结构动态响应并行计算程序开发及其应用  

Parallel Computing Program Development and Application on Earthquake Response of Hydraulic Structure

作　　者：王立涛[1] 马怀发[1] 陈厚群[1] 刘金朝[2] 

机构地区：[1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038 [2]中国铁道科学研究院,北京100081

出　　处：《水电能源科学》2012年第1期66-69,共4页Water Resources and Power

基　　金：国家自然科学基金资助项目(51079164);国家863计划基金资助项目(2009AA044501);水利部公益性行业科研专项基金资助项目(1261230100012);中国水利水电科学研究院科研专项基金资助项目(抗集1133)

摘　　要：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。Based on message passing interface （MPI） and parallel finite element program generator （PFEPG）, the finite element programs are developed for dynamic response analysis of hydraulic structure with nonlinear contact problem. The model is solved by explicit finite-difference in time domain. The program can deal with dead-weight of structure, earthquake load, seepage pressure, temperature stress, water and sediment pressure, etc. The viscoelasticity artificial boundary is adopted to simulate radiation damping of energy dispersion in far-field foundation and the additional mass method is used to simplify hydrodynamic pressure. Taking earthquake dynamic response analysis of Xiluodu arch dam for an example, the results show that the computational programs have both of high degree of parallelism and parallel efficiency.

关 键 词：水工结构 结构抗震 并行计算 有限元 黏弹性边界 

分 类 号：TV312[水利工程—水工结构工程] TP311.1[自动化与计算机技术—计算机软件与理论]