摘要
本文在分析了土块处理机结构特点的基础上,阐述了其碎土机理。基于显式动力分析软件Ansys/Ls-Dyna,构造了刀片-土块在Ls-Dyna K文件中的本构模型,模拟土块在破碎机中的碰撞破碎过程,找出了最佳的进料斗倾斜角42°,同时在水稻盘育秧用土处理机上进行了碎土实验,得出α为38～42°时土块破碎效果最好,这为该机的改进提供了有力的理论依据。
According to the analysis of crusher＇s structure, this article expatiates on clod-dislnte mechanism of this crusher. It constructes a model of flatedge-clod in Ls-Dyna K file by explicit dynamic anlysis software： Ansys/ Ls-dyna, simulate the process of crushing in the clod processor, find the obliquity 42° of feed hopper, meanwhile do some experiments in the clod processor, find the optimum angle α 为 38～42°. It provides a convincing numeric reason for the clod processor＇s amelioration.
出处
《包装与食品机械》
CAS
2009年第5期68-71,75,共5页
Packaging and Food Machinery
关键词
碎土
刀片
模拟
倾斜角
clod-disintegration
flatedge
imitation obliquity
