The port-Hamiltonian approach presents an energy-based modeling of dynamical systems with energy-conservative and energy-dissipative parts as well as an interconnection over the so-called ports. In this paper, we apply an operator splitting that treats the energy-conservative and energy-dissipative parts separately. This paves the way for linear equation solvers to exploit the respective special structures of the iteration matrices as well as the multirate potential in the different right-hand sides. We illustrate the approach using test examples from coupled multibody system dynamics.

翻译：端口-哈密顿方法提供了一种基于能量的动态系统建模框架，该系统包含能量守恒部分与能量耗散部分，并通过所谓的端口进行相互连接。本文采用算子分裂方法，将能量守恒与能量耗散部分分别独立处理。这为线性方程求解器提供了可分别利用迭代矩阵各自特殊结构的可能性，同时挖掘不同右侧项中多速率特性的潜力。我们通过耦合多体系统动力学的测试算例对该方法进行了验证。