摘要
为研究船用柴油机配气机构运动过程中弹性变形对运动和受力的影响,以6L21/31柴油机的配气机构作为研究对象,应用Pro/E软件平台和ADAMS软件平台,建立其多刚体动力学模型。将气门杆和挺杆这两个弹性变形大的零件进行柔性化处理后,建立其刚柔耦合动力学模型。并将多刚体动力学模型和刚柔耦合动力学模型仿真的结果与经典动力学计算结果进行比较分析。结果表明考虑零部件的弹性变形,能够更准确的反应配气机构的运动情况,可以进一步为柴油机配气机构的优化设计和改进提供可靠依据。
In order to study the elastic deformation＇s influence on movement and stress of marine diesel engine valve train, 6L21/31 diesel engine valve train is studied .And multi-rigid body dynamic simulation model is created by means of Pro/E and ADAMS. Rigid-flexible coupled dynamic model is built after valve stern and tappet being made into flexible body. Then multi-rigid body dynamic model and rigid-flexible coupled dynamic model＇s simulation results are compared with classical dynamic calculations. It Shows that the results which consider the elastic deformation of the parts are more accurate to describe the movement and provides reliable basis for further design and optimization of valve train.
出处
《船舶工程》
北大核心
2013年第4期44-47,共4页
Ship Engineering
关键词
配气机构
弹性变形
多刚体仿真
刚柔耦合仿真
valve train
elastic deformation
multi-rigid body simulation
rigid-flexible coupled simulation
