LNG船舶推进系统动态性能分析研究

以某LNG动力工程船舶为研究对象，采用AMESim仿真软件对船舶推进系统进行建模仿真。为保证模型的精确性，采用试验数据进行标定，标定结果表明:各重要参数误差均在允许范围内。采用该仿真模型分别对分级加减速工况和负荷突变工况下推进系统各主要参数随时间的变化规律进行分析。结果表明:在上述动态过程中该气体机运行稳定。

Research on the Dynamic Performance of the LNG Ship Propulsion System

Taking an LNG engineering ship as the research object, AMESim simulation software was used in the modeling and simulation of the ship propulsion system. In order to ensure the accuracy of the model, the test data were used for calibration. The errors of the important parameters were acceptable. The model was used to analyze the change of key parameters along with the time under stepped acceleration and deceleration condition, as well as load mutation condition respectively. It is concluded that the LNG engine operates steadily during the above mentioned dynamic process.