一种钻耕刀具的设计及颗粒土壤切削运动与动力仿真  

Drill Tillage Tool Design and Granular Soil Cutting Kinematic and Dynamics Simulation

作　　者：张晋西[1] 袁腾飞[1] 程亭森 谭宇文[1] 

机构地区：[1]重庆理工大学机械工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2015年第8期34-37,共4页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市教委科技项目(0834119)

摘　　要：提出一种新的微耕机钻耕刀具,其综合犁耕与旋耕刀具的优点有利于提高切削土壤的平稳性,可以方便调节耕深。在刀具切削土壤计算方面,采用多体动力学方法与有限元力学分析结合,颗粒化构造土壤,动态模拟耕地过程中土壤的变形、散开,以及刀具上的应力变化,为土壤耕作仿真研究提供一种新的尝试。The paper put forward a new style drill tillage tool of the micro tillage machine, it contains the advantages of ploughing tillage tool and rotary tillage tool, and it is helpful to improve the stability of soil cutting, so it could easy to adjust tillage depth. In the aspect of cutter cutting soil calculation, using multi-body dynamics method combined with finite element mechanics analysis, constructing granular soil structure, and dynamic simulating the cultivated land in the process of soil deformation, scatter and the change of stress on the cutting tool, and it provides a new attempt to the soil cultivation simulation study.

关 键 词：钻耕刀具 土壤切削 多体动力学 有限元 

分 类 号：TH13[机械工程—机械制造及自动化]