This paper presents a multi-domain dynamic simulation model for continuous-contact helical gear pumps, which is an unconventional hydraulic pump design that is capable of canceling its kinematic flowrate variation. In this model, the fluid dynamics (in its lumped-element representation) are fully coupled in a closed feedback loop with other physical domains, including critical tribological interfaces, 3D dynamic loadings on the solid parts, dynamics, and micro-vibrations of the rotors. The model is compared to the analytical derivation and experimental measurements to prove its validity. The model can be used to provide predictive simulations for existing designs, or as a tool to optimize the design to provide better hydrostatic balancing for future iterations of hydraulic pump designs.

本文提出了一种连续接触斜齿轮泵的多域动态仿真模型，这是一种非常规液压泵设计，能够消除其运动流量变化。在此模型中，流体动力学（以集总元素表示）在闭合反馈回路中与其他物理域完全耦合，包括临界摩擦学界面、固体部件上的 3D 动态载荷、动力学和转子的微振动. 将该模型与分析推导和实验测量进行比较以证明其有效性。该模型可用于为现有设计提供预测模拟，或作为优化设计的工具，以便为液压泵设计的未来迭代提供更好的流体静力平衡。