果园气爆沉土施肥机液压插土装置参数优化与试验

IF 2.2 2区 农林科学 Q2 AGRICULTURAL ENGINEERING International Journal of Agricultural and Biological Engineering Pub Date : 2023-01-01 DOI:10.25165/j.ijabe.20231602.7126
Congju Shen, Lixin Zhang, Shouxing Jia, Yan Zhou, Fang Li, Yameng Dai, Jing Zhang, Wenxiao Ma
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Box-Behnken test optimization design method and Design-Expert V8.0.6.1 software were used to carry out parameter optimization test of hydraulic insertion device. A multivariate quadratic polynomial regression equation was established by setting the engine revolution, insertion rod diameter and insertion time as independent variables, and the operation parameters of the hydraulic insertion device were optimized based on the relationship between the independent variables and the response values. The results showed that the regression equation model based on the response values of insertion depth and cylinder pressure had a good fitting degree. 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引用次数: 0

摘要

:液压插土装置是果园气爆沉土施肥机的关键部件,实现杆定点插土,向土壤中喷气肥。为了探索插入过程中主要工作参数和结构参数对液压插入装置深度和缸压的影响,对工作参数进行了优化,以保证插入质量和效率。本文对锚杆插入过程进行了受力分析,建立了锚杆插入阻力关键参数方程。采用LS-DYNA有限元仿真软件对杆在插入过程中的受力变化进行了分析。采用Box-Behnken试验优化设计方法和design - expert V8.0.6.1软件对液压插入装置进行参数优化试验。以发动机转速、插入杆直径和插入时间为自变量,建立多元二次多项式回归方程,并根据自变量与响应值的关系对液压插入装置的工作参数进行优化。结果表明,基于插入深度和气缸压力响应值的回归方程模型具有较好的拟合程度。发动机转速、杆径和插入时间对插入深度的增加和气缸压力的降低均有显著影响,且发动机转速和插入时间与插入深度之间存在交互作用,发动机转速、杆径和插入时间任意两个因素与气缸压力之间存在交互作用。试验因素对插入深度的影响程度依次为发动机转速、插入时间、杆径。试验因素对气缸压力的影响程度依次为发动机转速、杆径、插入时间。根据插入深度和气缸压力的结果,优化参数组合为:发动机转速为1 450 r/min;杆径32毫米;插入时间是8秒。在此优化组合下,液压插入装置插入深度为44.43 cm,气缸压力为23.09 MPa。试验结果表明,优化后的参数组合能够满足快速深插的农艺要求,从而为气爆沉土施肥机水力插土装置的改进和优化提供了理论支持。
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Parameter optimization and test of hydraulic soil insertion device of orchard gas explosion subsoiling and fertilizing machine
: Hydraulic soil insertion device is a key component of orchard gas explosion subsoiling and fertilizing machine to realize rod fixed point soil insertion and gas fertilizer injection into soil. In order to explore the influence of the main working parameters and structural parameters on the depth and cylinder pressure of the hydraulic insertion device during the insertion process, the working parameters were optimized to ensure the insertion quality and efficiency. In this paper, force analysis was performed on the rod insertion process, and key parameter equation of soil insertion resistance was established. LS-DYNA finite element simulation software was applied to analyze the force variation of the rod during the insertion process. Box-Behnken test optimization design method and Design-Expert V8.0.6.1 software were used to carry out parameter optimization test of hydraulic insertion device. A multivariate quadratic polynomial regression equation was established by setting the engine revolution, insertion rod diameter and insertion time as independent variables, and the operation parameters of the hydraulic insertion device were optimized based on the relationship between the independent variables and the response values. The results showed that the regression equation model based on the response values of insertion depth and cylinder pressure had a good fitting degree. The engine revolution, rod diameter and insertion time all had significant effects on the increase of insertion depth and decrease of cylinder pressure, with interaction between the engine speed and insertion time with the insertion depth, and interaction between any two factors of engine revolution, rod diameter and insertion time with the cylinder pressure. The influences of the test factors on the insertion depth showed a descending order as engine speed, insertion time, and rod diameter. The influences of the test factors on the cylinder pressure showed a descending order as engine speed, rod diameter, and insertion time. Based on the results of insertion depth and cylinder pressure, the optimal combination of parameters was as follows: engine revolution of 1 450 r/min; rod diameter of 32 mm; and the insertion time of 8 s. Under this optimal combination, the insertion depth of the hydraulic insertion device was 44.43 cm, and the cylinder pressure was 23.09 MPa. The experimental results showed that the optimal combination of parameters could meet the agronomic requirements of fast and deep insertion, thus providing a theoretical support for the improvement and optimization of hydraulic soil insertion device of gas explosion subsoiling and fertilizing machine.
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来源期刊
CiteScore
4.30
自引率
12.50%
发文量
88
审稿时长
24 weeks
期刊介绍: International Journal of Agricultural and Biological Engineering (IJABE, https://www.ijabe.org) is a peer reviewed open access international journal. IJABE, started in 2008, is a joint publication co-sponsored by US-based Association of Agricultural, Biological and Food Engineers (AOCABFE) and China-based Chinese Society of Agricultural Engineering (CSAE). The ISSN 1934-6344 and eISSN 1934-6352 numbers for both print and online IJABE have been registered in US. Now, Int. J. Agric. & Biol. Eng (IJABE) is published in both online and print version by Chinese Academy of Agricultural Engineering.
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