廖宜涛,廖庆喜,舒彩霞,田波平,黄海东.基于ANSYS/LS—DYNA的芦竹切割—进给速度匹配研究[J].农业机械学报,2011,42(Z1):30-34.
Liao Yitao,Liao Qingxi,Shu Caixia,Tian Boping,Huang Haidong.Matching of Cutting and Feeding Speed for Reaping Arundo donax L. Based on ANSYS/LS[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(Z1):30-34.
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基于ANSYS/LS—DYNA的芦竹切割—进给速度匹配研究   [下载全文]
Matching of Cutting and Feeding Speed for Reaping Arundo donax L. Based on ANSYS/LS   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  芦竹  ANSYS/LS—DYNA  切割过程  高粗茎秆
基金项目:Fund of Independent Innovation of Huazhong Agricultural University (2011PY021)
作者单位
廖宜涛 华中农业大学 
廖庆喜 华中农业大学 
舒彩霞 华中农业大学 
田波平 华中农业大学 
黄海东 华中农业大学 
中文摘要:高粗茎秆作物因茎杆硬度和刚度大,机械化收割难度大。以芦竹为对象,以高粗茎秆作物通用型回转链式切割器为基础,应用ANSYS/LS—DYNA建立了锯片—芦竹切割破坏动态模拟有限元模型,动态模拟了芦竹切割破坏过程,试验验证了获取锯齿切割破坏芦竹过程的载荷—位移历程曲线的可行性及芦竹破坏的模拟计算模型的有效性。提出了回转链式切割器切割—进给速度匹配修正系数概念,确定了切割芦竹时进给速度和切割速度分别取1.00m/s和2.80m/s为最佳速度匹配,其切割器工作速度匹配修正系数为1.22。研究结果为芦竹收割机的传统系统参数优化设计提供了理论依据。
Liao Yitao  Liao Qingxi  Shu Caixia  Tian Boping  Huang Haidong
Huazhong Agricultural University;Huazhong Agricultural University;Huazhong Agricultural University;Huazhong Agricultural University;Huazhong Agricultural University
Key Words:Arundo donax L.  ANSYS/LS—DYNA  High-speed photography  Cutting process  Thick-tall stem crop
Abstract:The crops with thick-tall stem are difficult to be harvested by machine due to hardness and stiffness of the stem. In the present study, a dynamic simulation model of Arundo donax L. penetration was established by finite element numerical simulation technology, of which based on a general rotary-chain cutter for thick-tall stem. The results showed that the optimized matching parameters of cutting process for cutting and feeding speed were 2.80m/s and 1.00m/s, respectively. The optimal correction factor of cutting process for Arundo donax L. was 1.22. The study provided a methodological basis for the analysis of cutting process for thick-tall stems.

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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