摘要
利用直接积分法结合子结构技术和网络并行计算的特点，提出一种求解结构动力响应的网络并行解法．该方法在并行形成各子结构的劲度矩阵、质量矩阵、阻尼矩阵及荷载列阵后，并行进行各子结构的静凝聚，然后采用并行子结构预条件共轭梯度法迭代求解结点位移，从而确定结构的动响应．算例表明，随着子结构内点数和时间积分步数的增加，能获得较高的加速比．
Based on Wilson θ and Newmark integration methods,combined with the technique of substructure,in consideration of the characteristics of network parallel computation, a network parallel algorithm for solving dynamic response problems is presented in this paper. In the method,the stiffness matrix, the mass matrix, the damp matrix and the loading array of each substructure are formed in parallel,then the nodal displacements are obtained with the parallel substructure preconditioned conjugate gradient method,and thus the dynamic response is determined. The computation shows that with the method better speedup ratio can be achieved with the increase of the inner nodal number of the substructure and time integrating steps.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1999年第3期75-78,共4页
Journal of Hohai University(Natural Sciences)
关键词
动力响应
子结构
网络并行计算
加速比
dynamic response
substructure
network parallel computation
speedup ratio
