直列六缸柴油机固定停缸振动预测  

Vibration Prediction of the L6 Diesel Engines under Fixed Cylinder Deactivation Condition

作　　者：陈琳 马庆镇 陈国强 王慧辉 任海锋 黄同 CHEN Lin;MA Qingzhen;CHEN Guoqiang;WANG Huihui;REN Haifeng;HUANG Tong(State Key Laboratory of Engine Reliability,Weichai Power Co.,Ltd.,Weifang 261205,Shandong,China)

机构地区：[1]潍柴动力股份有限公司内燃机可靠性国家重点实验室,山东潍坊261205

出　　处：《噪声与振动控制》2023年第1期210-214,共5页Noise and Vibration Control

基　　金：内燃机可靠性国家重点实验室开放基金重大资助项目(skler-201901)。

摘　　要：为预测停缸状态下柴油机振动水平,以某直列6缸柴油机为研究对象,首先从理论角度分析不同停缸策略引发的柴油机扭矩激励差异;接着,基于Excite Power Unit软件建立整机多体动力学仿真模型,比较不同固定停缸策略对柴油机曲轴扭振及整机振动的影响;从振动可靠性角度,量化不同固定停缸策略所引起的柴油机振动幅度,为下一步动态停缸研发工作打下坚实基础。另外,该结论可以从产品研发角度指导产品规避共振风险,从而缩短产品开发周期,降低研制成本。Vibration of L6 diesel engines under cylinder deactivation condition is analyzed. First of all, the difference of the torsional excitation of the engine under different cylinder deactivation states is analyzed theoretically. Then, the multibody dynamics simulation model of the engine is established by means of the Excite Power Unit software. The influences of different cylinder deactivation states on the torsional vibration of the crankshaft and the vibration of the whole engine are analyzed. From the viewpoint of vibration reliability, the quantitative relation between the fixed cylinder deactivation status and the vibration extent of the engine is analyzed. This work has laid a foundation for further research of dynamic cylinder deactivation. In addition, the analysis conclusion has provided a guidance for products to avoid from resonance risk, shorten the development cycle and reduce the development cost.

关 键 词：振动与波 柴油机 固定停缸 振动预测 

分 类 号：O327[理学—一般力学与力学基础]