农机化研究
農機化研究
농궤화연구
JOURNAL OF AGRICULTURAL MECHANIZATION RESEARCH
2016年
3期
28-32
,共5页
葛蓁%熊琼%邓明华%汪小志%鲍秀兰
葛蓁%熊瓊%鄧明華%汪小誌%鮑秀蘭
갈진%웅경%산명화%왕소지%포수란
变量施肥%虚拟样机%二阶差分%嵌入式
變量施肥%虛擬樣機%二階差分%嵌入式
변량시비%허의양궤%이계차분%감입식
variable rate fertilization%virtual prototype%two-order difference%embedded
为了达到液态施肥机高速作业的目标,提出了一种新的施肥机施肥变量控制的方法,该方法主要采用Pro/E和ADMAS 联合仿真的方式对机构的机械运动轨迹进行验证,采用模糊控制和二阶差分算法降低施肥量的误差,使用PLC 实现施肥数据的处理和通信。为了验证该方法的有效性和可靠性,应用三维造型设计软件 Pro/E ,绘制机构各零部件模型并装配,通过改变保存文件的类型实现 Pro/E 与 ADAMS 数据交换,在 ADAMS 中建立机构虚拟样机和运动学仿真,得到了施肥机虚拟样机的运动轨迹。最后,通过PLC 嵌入式通信系统的优化,得到了虚拟样机施肥量随速度变化曲线,并将优化前后的施肥准确度和效率进行了对比。通过对比发现:使用 PLC嵌入式系统优化后的施肥机,施肥的精确性得到了明显的改善,且施肥效率较高,为变量施肥控制的研究提供了理论参考。
為瞭達到液態施肥機高速作業的目標,提齣瞭一種新的施肥機施肥變量控製的方法,該方法主要採用Pro/E和ADMAS 聯閤倣真的方式對機構的機械運動軌跡進行驗證,採用模糊控製和二階差分算法降低施肥量的誤差,使用PLC 實現施肥數據的處理和通信。為瞭驗證該方法的有效性和可靠性,應用三維造型設計軟件 Pro/E ,繪製機構各零部件模型併裝配,通過改變保存文件的類型實現 Pro/E 與 ADAMS 數據交換,在 ADAMS 中建立機構虛擬樣機和運動學倣真,得到瞭施肥機虛擬樣機的運動軌跡。最後,通過PLC 嵌入式通信繫統的優化,得到瞭虛擬樣機施肥量隨速度變化麯線,併將優化前後的施肥準確度和效率進行瞭對比。通過對比髮現:使用 PLC嵌入式繫統優化後的施肥機,施肥的精確性得到瞭明顯的改善,且施肥效率較高,為變量施肥控製的研究提供瞭理論參攷。
위료체도액태시비궤고속작업적목표,제출료일충신적시비궤시비변량공제적방법,해방법주요채용Pro/E화ADMAS 연합방진적방식대궤구적궤계운동궤적진행험증,채용모호공제화이계차분산법강저시비량적오차,사용PLC 실현시비수거적처리화통신。위료험증해방법적유효성화가고성,응용삼유조형설계연건 Pro/E ,회제궤구각령부건모형병장배,통과개변보존문건적류형실현 Pro/E 여 ADAMS 수거교환,재 ADAMS 중건립궤구허의양궤화운동학방진,득도료시비궤허의양궤적운동궤적。최후,통과PLC 감입식통신계통적우화,득도료허의양궤시비량수속도변화곡선,병장우화전후적시비준학도화효솔진행료대비。통과대비발현:사용 PLC감입식계통우화후적시비궤,시비적정학성득도료명현적개선,차시비효솔교고,위변량시비공제적연구제공료이론삼고。
In order to achieve high speed operation of liquid fertilizer machine goal , it proposes a new method of variable control fertilization , the method mainly by the joint simulation of Pro/E and ADMAS mode of mechanical motion trajecto-ry of the mechanism is verified ,by using fuzzy control and two order differential algorithm to reduce the low fertilization a-mount of error , the realization of the use of PLC processing fertilization and communication data .In order to verify the validity of the method and reliability , application of 3D modeling design software Pro/E, the parts and assembly drawing mechanism model , through the type change save file to realize Pro/E and ADAMS data exchange , to establish the mecha-nism of virtual prototype and kinematics simulation in ADAMS , get the trajectory of the virtual prototype and fertilizing machine .Finally , through the optimization of the PLC embedded communication system , obtained the change curve of virtual prototype with the speed and the amount of fertilizer , the fertilizer before and after optimization accuracy and effi-ciency are compared , found that the fertilizing machine using the PLC embedded system optimized by comparison , the accuracy of fertilization got obvious improvement , and fertilizer efficiency is high ,which provides the theory reference for the research on variable rate fertilization control .