Partitioned methods have been widely used in multiphysics and large‐scale structure‐media problems since they allow decomposition of a complex system into smaller subsystems. Although they have been considered to be superior to monolithic methods in terms of software reuse, difficulties still exist in the implementation process. This paper addresses these difficulties and proposes a new method to ease the coupling of the dynamic subsystems analyzed with different finite element codes. This is enabled by the development of a new staggered approach such that each involved program acts as a black box that is accessible only through model input and output, that is, displacements and forces, at the interface boundary. The accuracy and stability of the proposed method are numerically evaluated. A practical method to determine the maximum time step for stable solutions is also proposed. Two application examples are presented to verify the algorithm and demonstrate potential of the proposed method.

中文翻译：

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耦合动力系统的集成仿真方法

分区方法已被广泛用于多物理场和大规模结构介质问题，因为它们可以将复杂的系统分解为较小的子系统。尽管就软件重用而言，它们被认为优于整体方法，但在实现过程中仍然存在困难。本文解决了这些难题，并提出了一种新的方法来简化用不同有限元代码分析的动态子系统的耦合。这可以通过开发新的交错方法来实现，从而使每个涉及的程序都充当黑匣子，该黑匣子只能通过模型​​输入和输出（即界面边界处的位移和力）来访问。数值评价了所提方法的准确性和稳定性。还提出了一种确定稳定解的最大时间步长的实用方法。给出了两个应用实例，以验证算法并证明该方法的潜力。