周仕城,杨望,杨坚,梁兆新,莫建霖.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.
Zhou Shicheng,Yang Wang,Yang Jian,Liang Zhaoxin,Mo Jianlin.Dynamic Simulation Experiment of One-blade Cutting Sugarcane Process[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(1):68-73.
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一刀切断甘蔗动力学仿真试验   [下载全文]
Dynamic Simulation Experiment of One-blade Cutting Sugarcane Process   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.2011.01.015
中文关键词:  甘蔗  最佳切割力  影响因素  动力学  仿真
基金项目:广西自然科学基金资助项目(0832028);广西科技创新能力与条件建设项目(0842006)
作者单位
周仕城 广西大学 
杨望 广西大学 
杨坚 广西大学 
梁兆新 广西农业机械研究院 
莫建霖 广西农业机械研究院 
中文摘要:采用ANSYS/LS-DYNA显式动力学仿真软件,建立甘蔗—切割器系统的动力学仿真模型,且进行了甘蔗切割物理试验验证。利用四因子二次通用旋转组合设计方法和甘蔗—切割器系统仿真模型进行一刀切断甘蔗的仿真试验,建立影响因素与切割力和剪应力的数学模型,研究了切割力和剪应力各影响因素及其交互作用的影响规律,且对影响因素进行优化,获得了一刀切断甘蔗时可靠性为95%的最佳切割力总区间。结果表明,刀片刃角为17.5°,切割角为27.73°,刀盘倾角为28°,切割速度为16m/s时,可靠性为95%的最佳切割力范围为235.82~297.98N。
Zhou Shicheng  Yang Wang  Yang Jian  Liang Zhaoxin  Mo Jianlin
Guangxi University;Guangxi University;Guangxi University;Guangxi Research Institute of Agricultural Machinery;Guangxi Research Institute of Agricultural Machinery
Key Words:Sugarcane, Optimal cutting force, Influencing factor, Dynamics, Simulation
Abstract:By using explicit dynamic simulation software ANSYS/LS-DYNA, the sugarcane-cutter system dynamics simulation model was established. The precision of the simulation model was verified by physical experiment. By using four-factor of second order general rotation composite design and the sugarcane-cutter system dynamics simulation model, the dynamics simulation of one-blade cutting sugarcane was carried out. The mathematical model of the influencing factors, cutting forces and shear stresses was established. The influence law of the factors and their interaction were analyzed, and the respective optimization of the factors was gained. The optimal cutting force interval with 95% reliability was obtained. The results showed that when knife-edge angle of blade is 17.5°, cutting angle of blade is 27.73°, obliquity of disc cutter is 28° and cutting velocity is 16m/s, the optimal cutting force interval with 95% reliability is from 235.82N to 297.98N.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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