Optimization of design and operational parameters of a vibration-based seeding device for potato mini-tubers

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY Pakistan Journal of Agricultural Sciences Pub Date : 2021-12-01 DOI:10.21162/pakjas/21.8947
Wenzheng Liu
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Abstract

The mechanized planting of potato mini-tubers is vital for the development of the potato industry in China. A vibration-based seeding device for mini-tubers was designed and tested. The objectives of this study were to describe the design process of the main components of the seeding device by theoretical analysis, evaluate the reliability of the key components of the seeding device by finite element analysis, assess the seeding device’s working performance, and obtain a better combination of operational parameters by bench tests. According to a theoretical analysis of the seeding device design, the eccentricity of the eccentric wheel (EEW), rotational speed of the drive shaft (RSDS) and linear speed of the conveyor belt (LSCB) were selected as critical factors influencing the seeding device’s working performance. A Box-Behnken design (BBD) was applied to conduct bench tests and build regression models. Based on the optimized results, verification experiments were performed by a bench tester. The results showed that the multiple-seeding index (MUSI) was 3.10%, the miss-seeding index (MISI) was 4.01%, and the qualified-seeding index (QSI) was 92.89% when the EEW, RSDS and LSCB were 4 mm, 821 rpm, and 86 mm s-1, respectively. Verification experiments showed that the results agreed well with the theoretical optimization values
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马铃薯小型块茎振动播种装置的设计与运行参数优化
马铃薯小块茎的机械化种植对我国马铃薯产业的发展至关重要。设计并测试了一种基于振动的小型块茎播种装置。本研究的目的是通过理论分析描述播种机主要部件的设计过程,通过有限元分析评估播种机关键部件的可靠性,评估播种机的工作性能,并通过台架试验获得更好的操作参数组合。通过对播种装置设计的理论分析,选择偏心轮偏心率(EEW)、传动轴转速(RSDS)和输送带线速度(LSCB)作为影响播种装置工作性能的关键因素。应用Box-Behnken设计(BBD)进行台架试验并建立回归模型。在优化结果的基础上,利用台架试验机进行了验证实验。结果表明,当EEW、RSDS和LSCB分别为4mm、821rpm和86mm s-1时,多次播种指数(MUSI)为3.10%,漏播指数(MISI)为4.01%,合格播种指数(QSI)为92.89%。验证实验表明,结果与理论优化值吻合较好
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来源期刊
Pakistan Journal of Agricultural Sciences
Pakistan Journal of Agricultural Sciences AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
1.80
自引率
25.00%
发文量
18
审稿时长
6-12 weeks
期刊介绍: Pakistan Journal of Agricultural Sciences is published in English four times a year. The journal publishes original articles on all aspects of agriculture and allied fields.
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