| 土壤采样头几何参数力学优化方法 |
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| 引用本文： | 张凯,朱洪涛,杨佺,刘成良.土壤采样头几何参数力学优化方法[J].南京气象学院学报,2012,4(5):430-436. |
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| 作者姓名： | 张凯 朱洪涛 杨佺 刘成良 |
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| 作者单位： | 南京信息工程大学 信息与控制学院,南京,210044;南京信息工程大学 信息与控制学院,南京,210044;南京信息工程大学 信息与控制学院,南京,210044;上海交通大学 机械与动力工程学院,上海,200240 |
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| 基金项目： | 科技部农业科技成果转化项目(2011 GB23800022) |
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| 摘 要： | 通过对车载土壤采样设备的采样刀头力学建模,分析采样头在非导轨螺旋式工作状态下刀头所受土壤阻力以及内部应力,寻找出一种拓扑形状力学优化方法,仿真并计算出最优化的采样刀头形状与几何参数.优化后的采样头具有良好的减粘降阻和脱土功能并在实际运用中得到证实.
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| 关 键 词： | 精准农业 采样头 力学建模 参数优化 |
| 收稿时间： | 2011/4/23 0:00:00 |
Geometric parameters mechanics optimization of soil sampling head |
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| ZHANG Kai,ZHU Hongtao,YANG Quan and LIU Chengliang.Geometric parameters mechanics optimization of soil sampling head[J].Journal of Nanjing Institute of Meteorology,2012,4(5):430-436. |
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| Authors: | ZHANG Kai ZHU Hongtao YANG Quan and LIU Chengliang |
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| Institution: | School of Information and Control,Nanjing University of Information Science & Technology,Nanjing 210044;School of Information and Control,Nanjing University of Information Science & Technology,Nanjing 210044;School of Information and Control,Nanjing University of Information Science & Technology,Nanjing 210044;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240 |
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| Abstract: | The rapid development of precision agriculture has given rise to the innovation of rapid soil sampling technology.Yet the research in the soil sampling head is still absent,which is important in sampling effect and efficiency.Based on the mechanical modeling of the sampling head of soil sampling device on tractor,and aimed at the problem in clayey soil sampling,this paper analyses the resistant force by the soil and internal stress of the sampling head under the working condition of spiral rail.Then a topology optimized mechanical method is found through lots of mathematical and physical calculation and data searching,which has been simulated and calculated by matlab.With the improved shape and geometric parameters from the simulation and calculation,the sampling head is optimized in adhesion decrease,resistance reduction and perfomance of soil removal.And the sampling head has longer service life after optimization.All the virtues have been confirmed by the practical use of soil sampling. |
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| Keywords: | precision agriculture (PA) sampling head mechanics modeling parameter optimization |
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