基于EDEM的轻型凿式深松铲土壤耕作载荷仿真分析
|
摘要
以轻型凿式深松铲为研究对象,利用EDEM建立其离散元仿真模型,确定深松铲土壤深松作业过程中的耕作载荷组成,并采用单因素试验方法分析了入土深度及作业速度对土壤耕作载荷的影响。结果表明:深松铲土壤耕作阻力主要由前进阻力及垂直阻力组成,土壤耕作阻力及其前进、竖直分量随着作业速度及入土深度的增大而增大,且土壤耕作阻力与两作业参数间皆成抛物线型二次函数关系;同时,土壤耕作阻力的波动状况随入土深度的增大及作业速度的减小而减小。该研究可为深松铲的研究提供一定的依据。
Light chisel-type subsoiler was selected as research object and its soil deep loosening process has been simulated by EDEM,acquired subsoiler magnitude tillage resistance and its every axis component history data,subsoiler soil tillage resistance is mainly determined by forward and normal component. Single factor test method was used to analyze the influence of subsoiler soil cutting depth and operating speed on soil tillage load,the results indicate that soil tillage resistance and its forward and normal component increased with working velocity and soil cutting depth's increasing,there is a parabolic quadratic function correlation between soil tillage resistance and its component and operating speed and soil cutting depth,meanwhile,soil tillage resistance's fluctuation state decreased with the increasing of soil cutting depth and the decreasing of working velocity. The research provide a reference for the study of subsoiler.
Light chisel-type subsoiler was selected as research object and its soil deep loosening process has been simulated by EDEM,acquired subsoiler magnitude tillage resistance and its every axis component history data,subsoiler soil tillage resistance is mainly determined by forward and normal component. Single factor test method was used to analyze the influence of subsoiler soil cutting depth and operating speed on soil tillage load,the results indicate that soil tillage resistance and its forward and normal component increased with working velocity and soil cutting depth's increasing,there is a parabolic quadratic function correlation between soil tillage resistance and its component and operating speed and soil cutting depth,meanwhile,soil tillage resistance's fluctuation state decreased with the increasing of soil cutting depth and the decreasing of working velocity. The research provide a reference for the study of subsoiler.
引文
[1]李洋阳,刘思宇,单春艳,等.保护性耕作综合效益评价体系构建及实例分析[J].农业工程学报,2015,31(15):48-54.
[2]陈源泉,隋鹏,高旺盛.不同方法对保护性耕作的生态评价结果对比[J].农业工程学报,2014,30(6):80-87.
[3]白景峰,李博,吕秀婷,等.基于狗獾爪趾的仿生深松铲结构设计与试[J].农机化研究,2016,38(4):175-179.
[4]张强,张璐,刘宪军,等.基于有限元法的仿生钩形深松铲耕作阻力[J].吉林大学学报:工学版,2012,42(增刊1):117-121.
[5]李博,刘凡一,陈军,等.深松铲耕作阻力影响因素的离散元法仿真分析[J].农机化研究,2015,37(2):71-74.
[6]王景立,刘选伟.基于ANSYS Workbench的弧形深松铲模态分析[J].中国农机化学报,2015,36(2):38-40.
[7]王宏立,张伟.基于的Pro/E和ANSYS的深松铲有限元分析[J].农机化研究,2012,34(12):33-36.
[8]齐关宇,刘林,赵艳忠,等.深松铲入土深度及铲形对耕作阻力影响[J].农机化研究,2015,37(11):161-165.
[9]边小雷,侯亚娟,赵梅,等.离散元法及其在颗粒粉碎领域的应用现状[J].矿山机械,2015,43(6):62-67.
[10]Mustafa Ucgul,John M Fielke,Chris Saunders.3D DEM tillage simulation:Validation of a hysteretic spring(plastic)contact model for a sweep tool operating in a cohesionless soil[J].Soil and Tillage Research,2014,144:220-227.
[11]季轩,黄世明,冯天玉,等.腐熟剂喷施装置出料部件数值模拟[J].中国农机化学报,2015,36(5):36-41.
[12]李延民,韩枫钦,赵烨.斜轴式高效混料机关键技术参数分析[J].机械设计与制造,2014(12):105-108.
[13]陈志.农业机械设计手册[K].北京:中国农业科学技术出版社,2007:227-228.
[14]王金武,王奇,唐汉,等.水稻秸秆深埋整秆还田装置设计与试验[J].农业机械学报,2015,46(9):112-117.
[15]Mustafa Ucgul,John M Fielke,Chris Saunders.Threedimensional discrete element modeling(DEM)of tillage:Accounting for soil cohesion and adhesion[J].Biosys tems Engineering,2015,129:298-306.
[16]Aliakbar Solhjou,John M Fielke,Jacky M A Desbiolles.Soil translocation by narrow openers with various rake angles[J].Biosystems engineering,2012,112:65-73.
[17]Gao Qun,Chen Ying,Zhou Haibo,et al.Simulation of a seed opener using the discrete element method(DEM)[J].Agric Eng Int:CIGR Journal,2015,17(3):72-82.
[18]D.Karayel,A Ozmerzi.Comparison of vertical and lateral seed distribution of furrow openers using a new criterion[J].Soil&Tillage Research,2007,95:69-75.
[19]Kornel Tamas,Istvan J Jori,Abdul M Mouazen.Modelling soil-sweep interaction with discrete element method[J].Soil and Tillage Research,2013,134:223-231.
[2]陈源泉,隋鹏,高旺盛.不同方法对保护性耕作的生态评价结果对比[J].农业工程学报,2014,30(6):80-87.
[3]白景峰,李博,吕秀婷,等.基于狗獾爪趾的仿生深松铲结构设计与试[J].农机化研究,2016,38(4):175-179.
[4]张强,张璐,刘宪军,等.基于有限元法的仿生钩形深松铲耕作阻力[J].吉林大学学报:工学版,2012,42(增刊1):117-121.
[5]李博,刘凡一,陈军,等.深松铲耕作阻力影响因素的离散元法仿真分析[J].农机化研究,2015,37(2):71-74.
[6]王景立,刘选伟.基于ANSYS Workbench的弧形深松铲模态分析[J].中国农机化学报,2015,36(2):38-40.
[7]王宏立,张伟.基于的Pro/E和ANSYS的深松铲有限元分析[J].农机化研究,2012,34(12):33-36.
[8]齐关宇,刘林,赵艳忠,等.深松铲入土深度及铲形对耕作阻力影响[J].农机化研究,2015,37(11):161-165.
[9]边小雷,侯亚娟,赵梅,等.离散元法及其在颗粒粉碎领域的应用现状[J].矿山机械,2015,43(6):62-67.
[10]Mustafa Ucgul,John M Fielke,Chris Saunders.3D DEM tillage simulation:Validation of a hysteretic spring(plastic)contact model for a sweep tool operating in a cohesionless soil[J].Soil and Tillage Research,2014,144:220-227.
[11]季轩,黄世明,冯天玉,等.腐熟剂喷施装置出料部件数值模拟[J].中国农机化学报,2015,36(5):36-41.
[12]李延民,韩枫钦,赵烨.斜轴式高效混料机关键技术参数分析[J].机械设计与制造,2014(12):105-108.
[13]陈志.农业机械设计手册[K].北京:中国农业科学技术出版社,2007:227-228.
[14]王金武,王奇,唐汉,等.水稻秸秆深埋整秆还田装置设计与试验[J].农业机械学报,2015,46(9):112-117.
[15]Mustafa Ucgul,John M Fielke,Chris Saunders.Threedimensional discrete element modeling(DEM)of tillage:Accounting for soil cohesion and adhesion[J].Biosys tems Engineering,2015,129:298-306.
[16]Aliakbar Solhjou,John M Fielke,Jacky M A Desbiolles.Soil translocation by narrow openers with various rake angles[J].Biosystems engineering,2012,112:65-73.
[17]Gao Qun,Chen Ying,Zhou Haibo,et al.Simulation of a seed opener using the discrete element method(DEM)[J].Agric Eng Int:CIGR Journal,2015,17(3):72-82.
[18]D.Karayel,A Ozmerzi.Comparison of vertical and lateral seed distribution of furrow openers using a new criterion[J].Soil&Tillage Research,2007,95:69-75.
[19]Kornel Tamas,Istvan J Jori,Abdul M Mouazen.Modelling soil-sweep interaction with discrete element method[J].Soil and Tillage Research,2013,134:223-231.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |