摘要
番茄穴盘钵苗基质在机械移栽过程中的损伤率是影响栽植成功率的关键问题,为了降低钵苗在取苗过程中的损伤率,采用Box-Behnken设计试验方法,以夹持角度、含水率、夹片宽度为影响因素,以压缩破碎量和抗压强度为响应指标,借助TA-XTplus质构分析仪进行钵体压缩特性试验。应用Design-Expert.v8.0.6软件建立了各影响因素对响应指标的二次多项式模型并进行拟合,分析了各因素对响应指标的影响,并采用多目标优化法确定影响因素最佳组合。试验表明,各因素对破碎压缩量的影响大小为夹片宽度>夹持角度>含水率,对抗压强度的影响大小为夹片宽度>夹持角度>含水率;当夹持角度为8°,含水率为55%,夹片宽度为13 mm时,破碎压缩量7.11 mm,抗压强度0.056 Pa,效果最好。该研究为末端执行器设计及结构参数优化提供重要参考依据。
The damage rate of tomato seedlings in the process of mechanical transplanting is a key issue to influence the success rate of planting, in order to reduce the damage rate of seedlings in the seedling process. Using Box-Behnken design test method, the clamping angle, water content and clip width are the influencing factors to compress and fracture. The amount and compressive strength were the response indicators, and the compressive properties of the carcass were tested by means of the TA-XTplus texture analyzer. The design-expert.v8.0.6 software is used to establish a secondary polynomial model of the response indicator and fit it, analyze the influence of each factor on the response indicator, and use multi-objective optimization to determine the optimal combination of influencing factors. The test shows that the influence of each factor on the crushing compression is the width of the clip, the clamp angle, the water content, the impact of the anti-pressure strength is the clip width, the grip angle, the water content, and when the clamp ingress angle is 8 degrees, the water content is 55%, the clamp width is 13 mm, the crushing compression is 7.11 mm, the compression strength is 0.056 Pa best. This study provides an important reference for end actuator design and structural parameter optimization.
作者
马一凡
王卫兵
冯静安
申团辉
郭祖扬
Ma Yifan;Wang Weibing;Feng Jingan;Shen Tuanhui;Guo Zuyang(College of Mechanical and Electrical Engineering,Shihezi University,Shihezi,832000,China)
出处
《中国农机化学报》
北大核心
2020年第1期64-71,共8页
Journal of Chinese Agricultural Mechanization
基金
国家自然科学基金(61763042).
关键词
机械化移栽
穴盘苗
钵体
压缩特性
试验分析
参数优化
mechanized transplanting
plug seedlings
tomato seedlings pot
compressive properties
experimental analysis
parameter optimization
