Propeller Torque Load and Propeller Shaft Torque Response Correlation During Ice-propeller Interaction

轮船使用推进机械系统创造方向性的戳。当轮船壳进展，航行在盖住冰的水里包含碎冰片和他们的 submergence。有时，沉没了冰片与推进器交往并且引起转矩负担的不规则的变化。作为结果，推进器和引擎动力学，变得的 imbalanced，和能量通过推进机械系统宣传直到平衡被到达。处于如此的 imbalanced 状况，测量推进器柄转矩反应不等于推进器转矩。在这个工作，因此，全面系统反应用契约图模型在冰相关的转矩负担下面被模仿。推进器和推进器柄之间的能量差别被估计并且与他们的相应机械能量有关。另外，机械能量在模式之中被散布。基于分发，运动并且势能为在推进器转矩和推进器柄反应之间的关联是重要的。

Ships use propulsion machinery systems to create directional thrust. Sailing in ice-covered waters involves the breaking of ice pieces and their submergence as the ship hull advances. Sometimes, submerged ice pieces interact with the propeller and cause irregular fluctuations of the torque load. As a result, the propeller and engine dynamics become imbalanced, and energy propagates through the propulsion machinery system until equilibrium is reached. In such imbalanced situations, the measured propeller shaft torque response is not equal to the propeller torque. Therefore, in this work, the overall system response is simulated under the ice-related torque load using the Bond graph model. The energy difference between the propeller and propeller shaft is estimated and related to their corresponding mechanical energy. Additionally, the mechanical energy is distributed among modes. Based on the distribution, kinetic and potential energy are important for the correlation between propeller torque and propeller shaft response.