甘蔗收获切割系统动力学仿真模型
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摘要
由于缺少考虑根土因素影响,目前甘蔗收获切割系统动力学仿真模型精度较低。为此,首先以4GZQ-260型甘蔗收获机切割器为研究对象,通过光滑粒子流体动力学(Smoothed Particle Hydrodynamics)和有限元方法(Finite Element Method)的耦合方法,建立甘蔗茎秆-根系-土壤-切割器系统动力学仿真模型,通过对茎秆-根系-土壤系统和茎秆-切割器系统动力学仿真模型进行试验,验证所建立的收获切割系统仿真模型建模方法的合理性。结果表明:建立的甘蔗茎秆-根系-土壤-切割器系统动力学仿真模型精度较高,该系统构建方法可用于甘蔗收获切割的动力学仿真研究。
Due to the lack of consideration the influence of root and soil factors,the current dynamic simulation model of harvesting and cutting system in sugarcane field is low. Therefore,this paper first takes the 4 GZQ-260 sugarcane harvester cutter as the research object,a coupling simulation method of smooth particle hydrodynamics and finite element method was used to establish the simulation model of sugar cane stem-root-soil-cutter system dynamics.Then the dynamic simulation models of sugarcane-soil system and sugarcane culm-cutter system were established and verified. Finally,the rationality of the modeling method of field cutting system simulation model was verified.The results showed that the accuracy of the system dynamics simulation model of sugarcane stem-root-soil cutter system was high,and the construction method of the system can be applied to the dynamic simulation research of sugarcane harvest in the field.
Due to the lack of consideration the influence of root and soil factors,the current dynamic simulation model of harvesting and cutting system in sugarcane field is low. Therefore,this paper first takes the 4 GZQ-260 sugarcane harvester cutter as the research object,a coupling simulation method of smooth particle hydrodynamics and finite element method was used to establish the simulation model of sugar cane stem-root-soil-cutter system dynamics.Then the dynamic simulation models of sugarcane-soil system and sugarcane culm-cutter system were established and verified. Finally,the rationality of the modeling method of field cutting system simulation model was verified.The results showed that the accuracy of the system dynamics simulation model of sugarcane stem-root-soil cutter system was high,and the construction method of the system can be applied to the dynamic simulation research of sugarcane harvest in the field.
引文
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[8]杨望,张硕,陈科余,等.基于土壤分层的木薯块根拔起系统动力学仿真模型[J].农机化研究,2016,38(8):51-55.
[9]刘增汉,杨坚,周仕成,等.基于LS-DYNA的土壤-甘蔗-切割器系统的动力学仿真研究[J].农业装备与车辆工程,2010(5):29-31.
[10]郑勇,李玲,焦静,等.甘蔗生物力学特性研究理论与分析[J].热带农业科学,2017(1):84-88.
[11]杨望,李晓月,王蓉蓉,等.木薯块根拔起的最大应力数值模拟及试验[J].农业工程学报,2016,32(6):58-64.
[12]杨望,张硕,陈科余,等.基于土壤分层的木薯块根拔起系统动力学仿真模型[J].农机化研究,2016,38(8):51-55.
[13] M Li,S Xu,Y Yang,et al.A 3D simulation model of corn stubble cutting using finite element method[J]. Soil and Tillage research,2017,166:43-51.
[14]曹云生,陈丽华,刘小光,等.植物根土界面摩擦力的影响因素研究[J].摩擦学学报,2014,34(5):482-488.
[15]杨望,杨坚,刘增汉,等.入土切割对甘蔗切割过程影响的仿真试验[J].农业工程学报,2011,27(8):150-156.
[2]刘庆庭,区颖刚,卿上乐,等.光刃刀片切割甘蔗茎秆破坏过程高速摄像分析[J].农业机械学报,2007,38(10):31-35.
[3]张正中,梁式,吕焕培,等.基于ANSYS/LS-DYNA的甘蔗切割动力学仿真分析[J].农机化研究,2010,32(1):64-67.
[4]黄汉东,王玉兴,唐艳芹,等.甘蔗切割过程的有限元仿真[J].农业工程学报,2011,27(2):161-166.
[5]周仕成,杨望,杨坚,等.一刀切断甘蔗动力学仿真试验[J].农业机械学报,2011,42(1):68-73.
[6]向家伟,杨连发,李尚平.小型甘蔗收获机根部切割器结构设计[J].农业机械学报,2008,35(4):56-59.
[7] Fuwei Yuan,Wang Yang,Jian Yang,et al.Numerical simulation of sugarcane under wind load[J]. IOP Conf. Series:Materials Science and Engineering,2017,187:012024.
[8]杨望,张硕,陈科余,等.基于土壤分层的木薯块根拔起系统动力学仿真模型[J].农机化研究,2016,38(8):51-55.
[9]刘增汉,杨坚,周仕成,等.基于LS-DYNA的土壤-甘蔗-切割器系统的动力学仿真研究[J].农业装备与车辆工程,2010(5):29-31.
[10]郑勇,李玲,焦静,等.甘蔗生物力学特性研究理论与分析[J].热带农业科学,2017(1):84-88.
[11]杨望,李晓月,王蓉蓉,等.木薯块根拔起的最大应力数值模拟及试验[J].农业工程学报,2016,32(6):58-64.
[12]杨望,张硕,陈科余,等.基于土壤分层的木薯块根拔起系统动力学仿真模型[J].农机化研究,2016,38(8):51-55.
[13] M Li,S Xu,Y Yang,et al.A 3D simulation model of corn stubble cutting using finite element method[J]. Soil and Tillage research,2017,166:43-51.
[14]曹云生,陈丽华,刘小光,等.植物根土界面摩擦力的影响因素研究[J].摩擦学学报,2014,34(5):482-488.
[15]杨望,杨坚,刘增汉,等.入土切割对甘蔗切割过程影响的仿真试验[J].农业工程学报,2011,27(8):150-156.