CAJ | 학술논문

枣园开沟施肥是一项繁重的体力劳动，为了把果农从繁重的体力劳动中解放出来，设计了一种微型枣园施肥机的开沟器。开沟器采用双圆盘式，设计开沟深度为300mm，宽度为240mm。利用有限元分析软件 AN-SYS／LS－DYNA对旋耕弯刀切削土壤的过程进行有限元分析，结果表明：在弯刀切削土壤的过程中，随着弯刀与土壤接触面积的不断增大，土壤逐渐被完全破坏并有跟随弯刀运动的趋势；弯刀切削土壤的最大等效应力主要集中在土壤与弯刀内侧的接触处，整个切削过程土壤最大等效应力的波动幅度不大，切削较为平稳。
조완개구시비시일항번중적체력노동，위료파과농종번중적체력노동중해방출래，설계료일충미형조완시비궤적개구기。개구기채용쌍원반식，설계개구심도위300mm，관도위240mm。이용유한원분석연건 AN-SYS／LS－DYNA대선경만도절삭토양적과정진행유한원분석，결과표명：재만도절삭토양적과정중，수착만도여토양접촉면적적불단증대，토양축점피완전파배병유근수만도운동적추세；만도절삭토양적최대등효응력주요집중재토양여만도내측적접촉처，정개절삭과정토양최대등효응력적파동폭도불대，절삭교위평은。
Fertilization in jujube orchard is a heavy physical labor, in order to free growers of the heavy physical labor , designed a mini fertilizing machine ’ s furrower opener , the furrower opener used double disc type , designed trench depth is 300mm, trench width is 240mm.Using finite element software ANSYS/LS-DYNA to analyse the process of bent blade cut the soil , analysis results showed that during the cutting process the contact area between bent blade and soil was in -creasing and soil was moving with blade finally was destroyed completely , During bent blade cut soil the maximum equivalent stress mainly concentrated at the inner side where the soil contacted with bent blade , the fluctuation of maxi-mum equivalent stress was small , cutting was relatively stable .