船用低速柴油机燃油喷射控制阀的性能仿真与结构优化

Simulation and Structure Optimization of Marine Low-Speed Diesel Fuel Injection Control Valve

以自主研制的电控液力增压式喷油器中的燃油喷射控制电磁阀为研究对象,在LMS-AMESim中搭建了电磁阀液力仿真模型,在ANSYS-Maxwell中搭建了电磁铁仿真模型,并通过AMESim中的电磁铁查询模型对Maxwell中的电磁铁数据进行耦合。经电磁阀综合性能试验平台测试,验证了所建模型的精度满足要求。利用该模型仿真分析了电磁阀动态响应特性、流通能力及泄漏量影响因素,在此基础上完成了电磁阀结构优化。结果表明:虽然优化后电磁阀泄漏量增加了3.57%,但开启响应速度提升了10.8%,关闭响应速度提升了25.8%。

To study the electromagnetic valve for fuel injection control in a self-developed electronically controlled hydraulic booster injector,the hydraulic simulation model of the solenoid valve was built in LMS-AMESim,and the electromagnet simulation model was built in ANSYS-Maxwell.The electromagnet data in Maxwell was coupled by the electromagnet query model in AMESim.The test on the comprehensive performance test platform for the solenoid valve verified the accuracy of this model.The model was used to simulate and analyze the dynamic response characteristics,flow capacity and leakage volume factors of the solenoid valve.On this basis,the structure optimization design of the solenoid valve was completed.The results show that although the solenoid valve leakage increases by 3.57%after optimization,the turn-on response speed increases by 10.8%,and the turn-off response speed increases by 25.8%.