挖掘机动力总成悬置系统建模仿真研究  

Modeling and simulation study of excavator's powertrain mounting system

作　　者：陈欠根[1,2] 冯利花[1] 过新华[1] 胡剑平 

机构地区：[1]中南大学现代复杂装备设计与极端制造教育部重点实验室,湖南长沙410083 [2]山河智能机械股份有限公司,湖南长沙410100

出　　处：《合肥工业大学学报（自然科学版）》2011年第8期1130-1134,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家863计划资助项目(2003AA430200)

摘　　要：文章将液压挖掘机动力总成悬置系统置于整机水平,研究其建模和振动特性;在ADAMS中建立包含动力总成和整机机架的12自由度模型,通过仿真,比较动力总成6自由度模型和12自由度模型的系统模态和振动特性,并获得系统12自由度模型的振动传递率,结果表明12自由度模型更接近实际情况;同时通过实验验证了该12自由度模型的正确性,为进一步研究并优化挖掘机动力总成悬置系统提供了可行的更完善的方法。This paper researched the modeling and vibration characteristic of the hydraulic excavator＇s powertrain mounting system is a whole body condition.Using the ADAMS,a 12-degree-of-freedom（DOF） model was set up which contained both the powertrain and the whole body.The system mode and the vibration characteristic of the 6-DOF model were compared with those of the 12-DOF model by the simulation,and the system vibration transfer ratio of the 12-DOF model was obtained.The results show that the 12-DOF model is more approximate to the actual situation.The correctness of the 12-DOF model is also validated by the experiments.The paper provides a feasible and sound method to research and optimize the excavator＇s powertrain mounting system.

关 键 词：动力总成悬置 建模 仿真 机械系统动力学自动分析 

分 类 号：TH113.1[机械工程—机械设计及理论]