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针对某型柴油机的配气系统,进行了中压共轨电控可变气门系统设计。并利用Pro/E软件进行了电液控制配气机构三维实体建模,导入ADAMS中建立了多刚体动力学可视化虚拟样机模型,利用ADAMS/Hydraulics建立了液压驱动源,以实现机械系统和液压系统的耦合仿真,对气门的运动特性进行研究。通过有限元软件Patran对电液控制配气机构的关键部件活塞顶杆进行了网格划分,对活塞顶杆进行了柔性化,并导入ADAMS中建立刚柔混合模型,对活塞顶杆进行了强度分析,为后续加工、材料选型提供了依据。
Aiming at the gas distribution system of a diesel engine, a medium-pressure common rail electronically controlled variable valve system was designed. The 3D solid modeling of electro-hydraulic control valve mechanism was carried out by using Pro / E software. A multi-rigid body dynamics visualization virtual prototype model was set up in ADAMS. The hydraulic driving source was established by ADAMS / Hydraulics to realize the mechanical system and hydraulic system Coupling simulation of the valve movement characteristics of the study. Through the finite element software Patran, the piston ram of the key components of the electro-hydraulic control valve train was meshed, the piston ram was flexed and introduced into the ADAMS to establish the rigid-flexible hybrid model. The plunger ram’s strength Analysis, for the follow-up processing, material selection provided the basis.