苎麻茎秆力学模型的试验分析
为了提供苎麻收割、剥制机械研究设计的力学参数及理论基础,论文对苎麻茎秆的几何形状进行假定,运用复合材料力学理论建立苎麻茎秆力学模型,利用微机控制万能试验机对苎麻茎秆各向（轴向、径向）及各组分（木质部、韧皮部和茎秆整体）进行拉伸、压缩、弯曲等力学试验,获得力学参数数据,并通过数据的分析计算获得苎麻茎秆力学模型的全部弹性参数。同时,试验结果表明,苎麻茎秆在轴向拉伸中表现更多为木质部的承载作用,其韧皮部与木质部的粘附力不能阻止韧皮部沿木质部表层滑移;苎麻茎秆径向弹性参数测量值和通过各组分弹性参数值计算获得的计算值接近,苎麻茎秆径向符合复合材料的特性。...
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| Published in | 农业工程学报 Vol. 31; no. 20; pp. 26 - 33 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
农业部南京农业机械化研究所,南京,210014
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2015.20.004 |
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| Summary: | 为了提供苎麻收割、剥制机械研究设计的力学参数及理论基础,论文对苎麻茎秆的几何形状进行假定,运用复合材料力学理论建立苎麻茎秆力学模型,利用微机控制万能试验机对苎麻茎秆各向（轴向、径向）及各组分（木质部、韧皮部和茎秆整体）进行拉伸、压缩、弯曲等力学试验,获得力学参数数据,并通过数据的分析计算获得苎麻茎秆力学模型的全部弹性参数。同时,试验结果表明,苎麻茎秆在轴向拉伸中表现更多为木质部的承载作用,其韧皮部与木质部的粘附力不能阻止韧皮部沿木质部表层滑移;苎麻茎秆径向弹性参数测量值和通过各组分弹性参数值计算获得的计算值接近,苎麻茎秆径向符合复合材料的特性。 |
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| Bibliography: | 11-2047/S models; composite materials; elasticity; ramie; stalk Shen Cheng, Li Xianwang, Tian Kunpeng, Zhang Bin, Huang Jicheng, Chen Qiaomin（Nanjing Research Institute for Agricultural Mechanization Ministry of Agriculture, Nanjing 21 O014, China） Mechanical cutting and fiber peeling are important parts in the ramie production process, and its working process is the process of interaction between rigid body（machine） and flexible body（ramie stalk）. To make the developed harvester and peeling machine to meet the working requirement of high quality, efficiency and low consumption, the premise is to get mechanical characteristic parameters of crop, to have a fundamental understanding of ramie harvesting and fiber peeling mechanism. Based on this, in order to provide the mechanical parameters and theoretical basis for the research on cutting and peeling ramie, experimental analysis on the mechanical model of ramie stalk has been made in the paper. The crop object for experimental analysis was the third crop of Zhong |
| ISSN: | 1002-6819 |
| DOI: | 10.11975/j.issn.1002-6819.2015.20.004 |