摘要
以首台行距无级可调钵苗栽秧机机架为基础,在UG中建立栽秧机机架的三维几何模型,利用ANSYS对机架上焊接处、发动机振源等四个位置的节点进行有限元瞬态响应分析。结果表明,发动机安置处的位移和应力变化最为显著,远离振源发动机处的位移及应力变化呈减弱趋势;同时,机架焊接位置易引起应力集中,极限工况下可能会发生断裂现象。该分析为栽秧机机架的结构优化提供了参考依据。
Based on the first pot-seedling row spacing adjustable stepless rice transplanter＇ s frame, three dimensional finite element model of transplanter frame was established in UG software, finite element transient response analysis on four points such as weld, far away from engine source was done by ANSYS. Simulation results showed that displacement and stress changes were the most notable at engine＇ s place, displacement and stress changes at the location away from engine source were decreased. Meanwhile, frame welding position was easy to cause stress concentration and was likely to occur break phenomenon under limiting condition. The analysis provided the basis for structure optimization.
出处
《中国农机化学报》
北大核心
2013年第6期77-80,共4页
Journal of Chinese Agricultural Mechanization
基金
"十二五"农村领域国家科技计划课题(2011BAD20B08-4)--水稻钵苗栽秧技术与装备
关键词
机架
瞬态响应分析
有限元
应力
frame
transient response analysis
ANSYS
stress
作者简介
赵荔，女，1990年生，江苏泰兴人，硕士研究生；研究方向为农业机械。E-mail：xxbctg@126．com
通讯作者：张瑞宏，男，1960年生，江苏江都人，博士，教授，博导；研究方向为农业工程。E-mail：zhang-rh@163．com
