钵体苗与导苗管碰撞的有限元模拟分析  

Finite Element Simulation Analysis on the Rise Seedling and the Seedling Guide Tube Collision

作　　者：朱克武[1] 王玉兴[1] 唐艳芹[1] 

机构地区：[1]华南农业大学工程学院,广州510540

出　　处：《农机化研究》2009年第12期40-42,共3页Journal of Agricultural Mechanization Research

基　　金：广东省科技计划资助项目(2004B20601001)

摘　　要：运用ANSYS/LS-DYNA软件,对水稻气力有序抛秧过程中钵体苗与导苗管碰撞机理进行了有限元模拟分析,通过对钵体苗的应力分析,得出了相应的应力时间关系曲线。通过设置不同的碰撞速度和不同的碰撞位置,得出碰撞过程中钵体苗内部的应力分布,并对应力时间关系曲线进行分析,发现所得的结果与碰撞理论基本相符,为水稻气力有序抛秧机的设计提供了一定的理论基础。In the process of element simulation analysis throwing rice pneumatic orderly, this essay uses ANSYS/LS - DYNA software to give a finite on the rise seedling and a seedling on the rise seedling, a corresponding stress time curves is got, got the internal stress distribution the result was in accordance with guide tube collision mechanism. After the stress analysis o By setting different speed and locations of collision, we during the collision process. Then we analyzed the stress - time curve and found that Collision theory. This finding provides a theoretical foundation for the designing of the pneumatic orderly rice -throwing machine.

关 键 词：钵体苗 导苗管 LS-DYNA 碰撞 模拟 应力 

分 类 号：S223.912[农业科学—农业机械化工程] S126[农业科学—农业工程]