| 摘要:基于多学科仿真平台AMESim，构建大型船用低速柴油机液压排气机构的精细化动态模型，涵盖液压驱动单元、溢流阀、电磁换向阀及多级活塞执行机构等核心组件。针对气阀动力学特性优化需求，系统探究关键参数的影响机制。研究结果表明，液压参数主要控制驱动力和位移响应速度，机械参数决定最大开度和惯性特性，二者协同作用显著影响气阀动态性能，为液压排气机构的动态优化与抗振设计提供理论依据。 |
| 关键词: 船舶低速机 液压系统 排气机构 AMESim仿真 |
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| Dynamic Modeling and Simulation of Hydraulic Exhaust Mechanism for Large Marine Low-Speed Engine Based on AMESim |
| Liu Zelin,Chen Wenzhe,Zhang Mao,Li Rui,Yao Chong |
| 1Yantai Research Institute of Harbin Engineering University， Yantai 264000， China;2College of Power and Energy Engineering， Harbin Engineering University， Harbin 150000， China |
| Abstract:This study constructs a refined dynamic model of the hydraulic exhaust mechanism for large marine low-speed diesel engines based on the multidisciplinary simulation platform AMESim.The model encompasses core components such as the hydraulic drive unit，relief valve，solenoid directional control valve，and multi-stage piston actuator.Addressing the demand for optimizing valve dynamic characteristics，the influence mechanism of key parameters is systematically investigated.Simulation results reveal that hydraulic parameters primarily control the driving force and displacement response speed，while mechanical parameters determine the maximum opening and inertial characteristics.The synergistic effect of the two significantly influences the dynamic performance of the gas valve，providing a theoretical basis for the dynamic optimization and anti-vibration design of the hydraulic exhaust mechanism. |
| Key words: marine low-speed engine hydraulic system exhaust mechanism AMESim simulation |
