Article(id=1297211758255567164, tenantId=1146029695717560320, journalId=1296125453100220459, issueId=1297211624738284246, articleNumber=null, orderNo=null, doi=10.11975/j.issn.1002-6819.202603015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1772380800000, receivedDateStr=2026-03-02, revisedDate=1778947200000, revisedDateStr=2026-05-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1787208984197, onlineDateStr=2026-08-20, pubDate=1782748800000, pubDateStr=2026-06-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1787208984197, onlineIssueDateStr=2026-08-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1787208984197, creator=13701087609, updateTime=1787208984197, updator=13701087609, issue=Issue{id=1297211624738284246, tenantId=1146029695717560320, journalId=1296125453100220459, year='2026', volume='42', issue='12', pageStart='1', pageEnd='396', issueExtLink='null', onlineDate='null', pubDate='1782748800000', pubDateStr='2026-06-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1787208952364, creator='13701087609', updateTime=1787212261177, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1297225503002357852, tenantId=1146029695717560320, journalId=1296125453100220459, issueId=1297211624738284246, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1297225503002357853, tenantId=1146029695717560320, journalId=1296125453100220459, issueId=1297211624738284246, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=60, endPage=72, ext={EN=ArticleExt(id=1297211759962648893, articleId=1297211758255567164, tenantId=1146029695717560320, journalId=1296125453100220459, language=EN, title=Optimizing the shoveling-throwing mechanism for litter surface manure in brooding chicken houses using NSGA-II algorithm, columnId=1297211670816907294, journalTitle=Transactions of the Chinese Society of Agricultural Engineering, columnName=Special Topics on Smart Animal-raising Technologies and Livestock Equipment(2): Smart Equipment and Environmental Engineering, runingTitle=null, highlight=null, articleAbstract=
Surface litter manure can significantly increase the risk of diseases in broiler brooding houses, such as coccidiosis and colibacillosis. Indoor air quality can be deteriorated, due to the release of ammonia, hydrogen sulfide, and methane. However, existing double-crank shoveling-throwing mechanisms of surface manure cleaning have suffered from low efficiency, performance, and excessive vibration, because the key structural parameters are determined empirically without systematic multi-objective optimization. In this study, a multi-objective optimization was developed for the double-crank shoveling-throwing mechanism using an improved NSGA-II algorithm. Thereby, better performance was achieved to improve the shoveling efficiency, energy consumption, and stability. A kinematic and dynamic model of the double-crank shoveling-throwing mechanism was first established to reveal the influence of structural parameters on the shoveling trajectory and force behaviors. A coupled ADAMS-EDEM simulation model was then constructed to simulate the interaction between the mechanism and manure particles. As such, 60 sets of variable samples were generated after the optimal Latin hypercube sampling. A Gaussian process regression (GPR) surrogate model was constructed to map the relationship between six variables and the shovel throwing quality Q. The relative error between the prediction and simulation was 3.85%, indicating high prediction accuracy. An improved NSGA-II algorithm was proposed to overcome the limitations of the standard NSGA-II algorithm—namely, significant dimensional differences among the three objectives, highly nonlinear parameter-performance mapping, and discontinuous parameter space. Three improvements were introduced: (1) an adaptive normalization mechanism to eliminate dimensional effects; (2) a hybrid optimization framework with global search (NSGA-II) and local refinement (sequential quadratic programming, SQP) for the high convergence accuracy; and (3) an improved crowding distance and solution selection mechanism for the distribution uniformity of the Pareto front. The improved algorithm was compared with standard NSGA-II, NSGA-III, MOPSO, and MOEA/D, according to three performance indicators: Inverted Generational Distance (IGD), Spacing, and Hypervolume (HV). The results showed that the improved NSGA-II algorithm significantly outperformed the rest. Specifically, the IGD value decreased by 71%, 68%, and 64%, respectively, compared with standard NSGA-II, MOPSO, and MOEA/D. Spacing value decreased by 26%, compared with standard NSGA-II, whereas, the HV value increased by 16%. The better performance was achieved in the high convergence, more uniform distribution, and higher coverage of the true Pareto front. The optimal compromise solution was selected from the Pareto set using the entropy-weighted TOPSIS. The optimal parameters were recommended: l1=70.4 mm, l2=88.5 mm, l3=100.2 mm, l4=30.3 mm, b=99.7 mm, β=37.4°. A prototype was manufactured for the double-crank shoveling-throwing device, according to the optimal parameters. Field experiments were conducted in three repetitions in a brooding house in Zhouzhi County, Xi’an, Shaanxi Province, China, in December 2025. The experimental conditions were as follows: Litter layer with a thickness of 50–60 mm, chicken manure layer thickness of 10-20 mm, and manure moisture content of 30%–35%. The results demonstrated that the optimal mechanism improved shoveling efficiency by 138.24%, whereas the driving torque and the angular acceleration peak at the shovel end were reduced by 35.12%, and 35.60%, respectively. In addition, the residual rate of surface manure decreased from 18.45% to 8.13%, with a reduction of 55.99%, indicating significantly improved cleaning quality. A multi-objective optimization framework was provided for the double-crank shoveling-throwing mechanism using ADAMS-EDEM simulation, GPR surrogate modeling, and an improved NSGA-II algorithm. The dimensional differences and high nonlinearity were avoided for the low computational cost after engineering optimization. The improved NSGA-II algorithm demonstrated superior convergence and distribution performance, compared with mainstream multi-objective algorithms. The optimal mechanism was achieved to balance shoveling efficiency, energy consumption, and operational stability. The findings can offer a complete technical pathway to enhance the performance of hinge-type multi-bar mechanisms, particularly for manure cleaning equipment in the poultry industry.
, authors=Yaoyao ZHU
1, Fengxin YAN
1, *, Kaiwen XUE
1, Shiying ZHANG
1, Yuan GAO
1, Saidqosim MUKHTOROV
2, Honggang LI
3, authorsList=Yaoyao ZHU, Fengxin YAN, Kaiwen XUE, Shiying ZHANG, Yuan GAO, Saidqosim MUKHTOROV, Honggang LI, authorCompany=null, correspAuthors=Fengxin YAN, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Transactions of the Chinese Society of Agricultural Engineering., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1297211764295364954, articleId=1297211758255567164, tenantId=1146029695717560320, journalId=1296125453100220459, language=CN, title=基于NSGA-II算法的育雏鸡舍垫料表层粪污铲抛机构优化方法, columnId=1297211670993068064, journalTitle=农业工程学报, columnName=智慧养殖技术与智能畜牧装备专题(2):智能装备与环境工程, runingTitle=null, highlight=null, articleAbstract=
针对肉鸡育雏舍内垫料表层粪污铲抛清理作业中,铲抛装置因关键结构参数依赖经验设计而存在效率低、振动大、性能不佳等问题,该研究通过开展双曲柄铲抛机构与粪污颗粒ADAMS-EDEM耦合仿真分析,建立基于最优拉丁超立方抽样法的设计变量—铲抛量高斯过程回归代理模型;针对优化问题中存在的目标函数量纲差异、结构参数与作业性能高度非线性映射、多目标协同冲突等问题,构建集自适应归一化机制、混合优化框架、最优解选择方法于一体的改进型NSGA-II(non-dominated sorting genetic algorithm II)多目标优化遗传算法,求解所得铲抛机构参数的Pareto解集收敛且分布均匀。利用优化后的参数组合试制了双曲柄铲抛装置并开展了育雏舍内现场清收试验,结果表明:铲抛机构的铲抛效率提升138.24%,驱动力矩减小35.12%,抛铲末端角加速度峰值降低35.60%,表面粪层残留率下降55.99%,极大改善了整台装置的工作性能和动力学特性。该方法为铰链四杆机构设计参数的优化和农业机械中双曲柄装置的综合应用提供了新的理论参考。
, authors=朱瑶瑶
1, 闫锋欣
1, *, 薛凯文
1, 张势盈
1, 高源
1, Saidqosim MUKHTOROV
2, 李宏刚
3, authorsList=朱瑶瑶, 闫锋欣, 薛凯文, 张势盈, 高源, Saidqosim MUKHTOROV, 李宏刚, authorCompany=null, correspAuthors=闫锋欣, authorNote=
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1College of Mechanical and Electrionic Engineering, Northwest A & F University, Yangling 712100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1300032397341380709, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032397161025634, language=CN, stringName=闫锋欣, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1西北农林科技大学机械与电子工程学院,杨凌 712100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1300032396594794579, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, xref=1, ext=[AuthorCompanyExt(id=1300032396607377492, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, companyId=1300032396594794579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1西北农林科技大学机械与电子工程学院,杨凌 712100)])]), Author(id=1300032397450432615, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1300032397551095913, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032397450432615, language=EN, stringName=Kaiwen XUE, firstName=Kaiwen, middleName=null, lastName=XUE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1, address=
1西北农林科技大学机械与电子工程学院,杨凌 712100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1300032396594794579, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, xref=1, ext=[AuthorCompanyExt(id=1300032396607377492, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, companyId=1300032396594794579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1西北农林科技大学机械与电子工程学院,杨凌 712100)])]), Author(id=1300032397865668716, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1300032397949554798, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032397865668716, language=EN, stringName=Shiying ZHANG, firstName=Shiying, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1College of Mechanical and Electrionic Engineering, Northwest A & F University, Yangling 712100, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1300032398012469359, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032397865668716, language=CN, stringName=张势盈, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1西北农林科技大学机械与电子工程学院,杨凌 712100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1300032396594794579, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, xref=1, ext=[AuthorCompanyExt(id=1300032396607377492, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, companyId=1300032396594794579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1, address=
1西北农林科技大学机械与电子工程学院,杨凌 712100, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1300032396594794579, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, xref=1, ext=[AuthorCompanyExt(id=1300032396607377492, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, companyId=1300032396594794579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1西北农林科技大学机械与电子工程学院,杨凌 712100)])]), Author(id=1300032398306070646, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1300032399669219448, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032398306070646, language=EN, stringName=Saidqosim MUKHTOROV, firstName=Saidqosim, middleName=null, lastName=MUKHTOROV, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2Institute of Economy and Trade of Tajik State University of Commerce in Khujand, Khujand 735700, Tajikistan, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1300032399740522617, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, authorId=1300032398306070646, language=CN, stringName=Saidqosim MUKHTOROV, firstName=Saidqosim, middleName=null, lastName=MUKHTOROV, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
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Brooding chicken houses litter surface manure cleaning machine and its double-crank shoveling-throwing device, figureFileSmall=Hj7bLTrG7yhzo5I2aeOYTA==, figureFileBig=4breXXtHEy1I/4ubuqYorA==, tableContent=null), ArticleFig(id=1300032401258860682, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图1, caption=
育雏鸡舍垫料表层粪污清收机及其双曲柄铲抛装置, figureFileSmall=Hj7bLTrG7yhzo5I2aeOYTA==, figureFileBig=4breXXtHEy1I/4ubuqYorA==, tableContent=null), ArticleFig(id=1300032401351135371, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.2, caption=
Diagram of double-crank shoveling-throwing mechanism, figureFileSmall=zbOQFojffSn0DOjNUABaDA==, figureFileBig=oZXYdn6tRRGhQPrpm1uegw==, tableContent=null), ArticleFig(id=1300032401414049932, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图2, caption=
双曲柄铲抛机构简图注:l1为主动曲柄长度,mm;l2为连杆长度,mm;l3为从动曲柄长度,mm;l4为机架长度,mm;l5为连接轴孔中心到铲面的长度,mm;l6为铲面EF宽度,mm;l7为铲面FG宽度,mm;b为铲面EG宽度,mm;φ1、φ2、φ3、φ4、φ5分别为l1~l5与y轴的负向夹角,°;β为抛铲板BF与铲面EG的夹角,(°);vm为机构前进速度,m·s−1;ω1为主动曲柄转速,r·min−1;ω3为从动曲柄转速,r·min−1。下同。
, figureFileSmall=zbOQFojffSn0DOjNUABaDA==, figureFileBig=oZXYdn6tRRGhQPrpm1uegw==, tableContent=null), ArticleFig(id=1300032401552461965, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.3, caption=
Working trajectory of double-crank shoveling-throwing mechanism, figureFileSmall=3vgywvR7tf68QXkzsweisA==, figureFileBig=rKcUNAZG602+vH8971g1ZA==, tableContent=null), ArticleFig(id=1300032401619570830, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图3, caption=
双曲柄铲抛机构作业轨迹, figureFileSmall=3vgywvR7tf68QXkzsweisA==, figureFileBig=rKcUNAZG602+vH8971g1ZA==, tableContent=null), ArticleFig(id=1300032401678291087, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.4, caption=
Dynamic analysis diagram of double-crank shoveling-throwing mechanism, figureFileSmall=LzZBkWi6wp541uUUAhX7Vw==, figureFileBig=PHOfzOPlbUQuX73eoWDtAA==, tableContent=null), ArticleFig(id=1300032401816703120, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图4, caption=
双曲柄铲抛机构动力学分析简图注:ls1、ls2、ls3分别为AB杆、BC杆、CD杆质心到铰接点的距离,mm。
, figureFileSmall=LzZBkWi6wp541uUUAhX7Vw==, figureFileBig=PHOfzOPlbUQuX73eoWDtAA==, tableContent=null), ArticleFig(id=1300032401883811985, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.5, caption=
Coupling simulation model, figureFileSmall=NBAOCx2c+0ZBaPUcOm6ilA==, figureFileBig=eL9jyQJQ9zArgLvM5puYDg==, tableContent=null), ArticleFig(id=1300032401955115154, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图5, caption=
耦合仿真模型, figureFileSmall=NBAOCx2c+0ZBaPUcOm6ilA==, figureFileBig=eL9jyQJQ9zArgLvM5puYDg==, tableContent=null), ArticleFig(id=1300032402043195539, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.6, caption=
Correlation heat map of design variables and performance indicators, figureFileSmall=B+aM+35ovtelUPj4iPdXmQ==, figureFileBig=+aAsVq+aZ4PNT7xXeHtXdQ==, tableContent=null), ArticleFig(id=1300032402110304404, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图6, caption=
各设计变量与性能指标相关性热力图注:Tq为驱动力矩,即机构作业过程中驱动力矩峰值,N·mm;Q为铲抛量,即机构作业时每秒清收的粪层质量,g·s−1;amax为抛铲末端角加速度峰值,rad·s−2,r为皮尔逊相关系数。
, figureFileSmall=B+aM+35ovtelUPj4iPdXmQ==, figureFileBig=+aAsVq+aZ4PNT7xXeHtXdQ==, tableContent=null), ArticleFig(id=1300032402198384789, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.7, caption=
Improved NSGA-II solution flow chart, figureFileSmall=ECB3bt1g8mQ+WtKgfi//hQ==, figureFileBig=HkJzDLmI10E7h1x39JgZeQ==, tableContent=null), ArticleFig(id=1300032402278076566, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图7, caption=
改进NSGA-II求解流程图, figureFileSmall=ECB3bt1g8mQ+WtKgfi//hQ==, figureFileBig=HkJzDLmI10E7h1x39JgZeQ==, tableContent=null), ArticleFig(id=1300032402349379735, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.8, caption=
Pareto optimal solution set, figureFileSmall=BBCGaiXIWj0+GC7Tr+embg==, figureFileBig=3CbwdZbPNXSw4YIom+3KyQ==, tableContent=null), ArticleFig(id=1300032402416488600, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图8, caption=
Pareto最优解集注:O1、O2、O3为从Pareto最优解集中随机选取的3组解。下同
, figureFileSmall=BBCGaiXIWj0+GC7Tr+embg==, figureFileBig=3CbwdZbPNXSw4YIom+3KyQ==, tableContent=null), ArticleFig(id=1300032402479403161, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.9, caption=
Double-crank shoveling-throwing mechanism before and after optimization, figureFileSmall=omyzQ7bN+iI88u2LXEK+4w==, figureFileBig=pUvgQAMnnc0xnBRyiBfTEg==, tableContent=null), ArticleFig(id=1300032402542317722, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图9, caption=
优化前后双曲柄铲抛机构, figureFileSmall=omyzQ7bN+iI88u2LXEK+4w==, figureFileBig=pUvgQAMnnc0xnBRyiBfTEg==, tableContent=null), ArticleFig(id=1300032402634592411, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.10, caption=
Prototype verification test, figureFileSmall=MNiTXizC6Bx4HrsjjxryMA==, figureFileBig=ynU7J17LBeBy7eeO8ogNkg==, tableContent=null), ArticleFig(id=1300032402714284188, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图10, caption=
样机验证试验, figureFileSmall=MNiTXizC6Bx4HrsjjxryMA==, figureFileBig=ynU7J17LBeBy7eeO8ogNkg==, tableContent=null), ArticleFig(id=1300032402793975965, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.11, caption=
Comparison of filtered angular acceleration and driving torque data before and after optimization, figureFileSmall=jwOb9c5IDDpO1cVLyZ5LRQ==, figureFileBig=70ffXBvcWhXqsVkXZ4nSdg==, tableContent=null), ArticleFig(id=1300032402898833566, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图11, caption=
优化前后角加速度与驱动力矩数据滤波处理对比, figureFileSmall=jwOb9c5IDDpO1cVLyZ5LRQ==, figureFileBig=70ffXBvcWhXqsVkXZ4nSdg==, tableContent=null), ArticleFig(id=1300032402978525343, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.12, caption=
Driving torque variation curve before and after optimization, figureFileSmall=F1039Y23CbS9dsNcfz/Rng==, figureFileBig=g62tqekxwzbhUYPQh1zl6A==, tableContent=null), ArticleFig(id=1300032403163074720, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图12, caption=
优化前后驱动力矩变化曲线, figureFileSmall=F1039Y23CbS9dsNcfz/Rng==, figureFileBig=g62tqekxwzbhUYPQh1zl6A==, tableContent=null), ArticleFig(id=1300032403242766497, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.13, caption=
Angular acceleration variation curve before and after optimization, figureFileSmall=lqu/ykHCWnlm2B4tVV9DrQ==, figureFileBig=rhXmVsdQ1l7VXUyK/HAbeg==, tableContent=null), ArticleFig(id=1300032403335041186, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图13, caption=
优化前后角加速度变化曲线, figureFileSmall=lqu/ykHCWnlm2B4tVV9DrQ==, figureFileBig=rhXmVsdQ1l7VXUyK/HAbeg==, tableContent=null), ArticleFig(id=1300032403397955747, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Fig.14, caption=
Effect diagram before and after shoveling operation, figureFileSmall=RMIWRKBrtCGbD24q2GyODw==, figureFileBig=mzld+p2Hy/xdijTzEY79kw==, tableContent=null), ArticleFig(id=1300032403473453220, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=图14, caption=
铲抛作业前后效果图, figureFileSmall=RMIWRKBrtCGbD24q2GyODw==, figureFileBig=mzld+p2Hy/xdijTzEY79kw==, tableContent=null), ArticleFig(id=1300032403574116517, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.1, caption=
Structural parameters of shoveling-throwing mechanism
, figureFileSmall=null, figureFileBig=null, tableContent=
参数 Parameter | 数值Values |
| 主动曲柄长度Driving crank length /mm | 80 |
| 机架Frame length /mm | 40 |
| 连杆Connecting rod length /mm | 90 |
| 从动曲柄Driven crank length /mm | 110 |
| 铲面宽度Shovel surface width /mm | 100 |
铲面与抛铲板间夹角 Angle between the shoveling surface and shoveling-throwing plate /(°) | 40 |
), ArticleFig(id=1300032403653808294, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表1, caption=
铲抛机构结构参数
, figureFileSmall=null, figureFileBig=null, tableContent=
参数 Parameter | 数值Values |
| 主动曲柄长度Driving crank length /mm | 80 |
| 机架Frame length /mm | 40 |
| 连杆Connecting rod length /mm | 90 |
| 从动曲柄Driven crank length /mm | 110 |
| 铲面宽度Shovel surface width /mm | 100 |
铲面与抛铲板间夹角 Angle between the shoveling surface and shoveling-throwing plate /(°) | 40 |
), ArticleFig(id=1300032403729305767, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.2, caption=
Comparison of mechanism parameters before and after optimization
, figureFileSmall=null, figureFileBig=null, tableContent=
参数 Parameters | 初始值 Initialization value | O1 | O2 | O3 |
| l1/mm | 80.0 | 74.5 | 73.2 | 70.4 |
| l2/mm | 90.0 | 99.6 | 99.5 | 88.5 |
| l3/mm | 110.0 | 100.4 | 100.3 | 100.2 |
| l4/mm | 40.0 | 34.6 | 34.0 | 30.3 |
| b/mm | 100.0 | 106.8 | 107.7 | 99.7 |
| β/(°) | 40.0 | 39.1 | 40.0 | 37.4 |
), ArticleFig(id=1300032403829969064, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表2, caption=
机构参数优化前后对比
, figureFileSmall=null, figureFileBig=null, tableContent=
参数 Parameters | 初始值 Initialization value | O1 | O2 | O3 |
| l1/mm | 80.0 | 74.5 | 73.2 | 70.4 |
| l2/mm | 90.0 | 99.6 | 99.5 | 88.5 |
| l3/mm | 110.0 | 100.4 | 100.3 | 100.2 |
| l4/mm | 40.0 | 34.6 | 34.0 | 30.3 |
| b/mm | 100.0 | 106.8 | 107.7 | 99.7 |
| β/(°) | 40.0 | 39.1 | 40.0 | 37.4 |
), ArticleFig(id=1300032403930632361, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.3, caption=
Comparison of comprehensive performance before and after optimization
, figureFileSmall=null, figureFileBig=null, tableContent=
指标 Index | 优化前 Before optimization | O1 | O2 | O3 |
| Q/(g·s−1) | 310.1 | 738.8 | 677.8 | 705.2 |
| Tq/(N·mm) | 359.5 | 342.5 | 299.1 | 194.4 |
| amax/(rad·s−2) | 332.9 | 450.4 | 303.1 | 208.5 |
), ArticleFig(id=1300032404014518442, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表3, caption=
综合性能优化前后对比
, figureFileSmall=null, figureFileBig=null, tableContent=
指标 Index | 优化前 Before optimization | O1 | O2 | O3 |
| Q/(g·s−1) | 310.1 | 738.8 | 677.8 | 705.2 |
| Tq/(N·mm) | 359.5 | 342.5 | 299.1 | 194.4 |
| amax/(rad·s−2) | 332.9 | 450.4 | 303.1 | 208.5 |
), ArticleFig(id=1300032404085821611, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.4, caption=
Performance comparison of algorithms
, figureFileSmall=null, figureFileBig=null, tableContent=
算法 Algorithms | 反世代距离 Inverted generational distance IGD | 间距 Spacing SP | 超体积 Hypervolume HV |
| NSGA-II | 31.00 | 17.42 | 0.12 |
| NSGA-III | 22.56 | 15.13 | 0.13 |
| MOPSO | 28.74 | 19.97 | 0.11 |
| MOEA/D | 24.91 | 14.55 | 0.13 |
改进NSGA-II Improved NSGA-II | 9.07 | 12.10 | 0.14 |
), ArticleFig(id=1300032404169707692, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表4, caption=
算法性能对比
, figureFileSmall=null, figureFileBig=null, tableContent=
算法 Algorithms | 反世代距离 Inverted generational distance IGD | 间距 Spacing SP | 超体积 Hypervolume HV |
| NSGA-II | 31.00 | 17.42 | 0.12 |
| NSGA-III | 22.56 | 15.13 | 0.13 |
| MOPSO | 28.74 | 19.97 | 0.11 |
| MOEA/D | 24.91 | 14.55 | 0.13 |
改进NSGA-II Improved NSGA-II | 9.07 | 12.10 | 0.14 |
), ArticleFig(id=1300032404245205165, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.5, caption=
Comparison of calculated and simulated values for indexes
, figureFileSmall=null, figureFileBig=null, tableContent=
指标 Index | O1 | | O2 | | O3 |
| Cv | Sv | | Cv | Sv | | Cv | Sv |
| 注:Cv为计算值;Sv为仿真值。 |
| Note: Cv is the calculated value; Sv is the simulation value. |
| Q/(g·s−1) | 738.8 | 714.1 | | 677.8 | 680.3 | | 705.2 | 726.4 |
| Tq/(N·mm) | 342.5 | 368.6 | | 299.1 | 326.4 | | 194.4 | 227.8 |
| amax/(rad·s−2) | 450.4 | 423.5 | | 303.1 | 287.2 | | 208.5 | 184.9 |
), ArticleFig(id=1300032404316508334, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表5, caption=
各指标计算值与仿真值对比
, figureFileSmall=null, figureFileBig=null, tableContent=
指标 Index | O1 | | O2 | | O3 |
| Cv | Sv | | Cv | Sv | | Cv | Sv |
| 注:Cv为计算值;Sv为仿真值。 |
| Note: Cv is the calculated value; Sv is the simulation value. |
| Q/(g·s−1) | 738.8 | 714.1 | | 677.8 | 680.3 | | 705.2 | 726.4 |
| Tq/(N·mm) | 342.5 | 368.6 | | 299.1 | 326.4 | | 194.4 | 227.8 |
| amax/(rad·s−2) | 450.4 | 423.5 | | 303.1 | 287.2 | | 208.5 | 184.9 |
), ArticleFig(id=1300032404412977327, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=EN, label=Tab.6, caption=
Shoveling amount of surface manure before and after optimization
, figureFileSmall=null, figureFileBig=null, tableContent=
工况 Working condition | 铲抛量Shoveling amount/(g·s-1) |
仿真试验 Simulated experiment | 样机试验 Prototype experiment | 相对误差 Relative error/ % |
| 优化前Before optimization | 310.55 | 285.20 | 8.89 |
| 优化后After optimization | 726.40 | 679.46 | 6.46 |
), ArticleFig(id=1300032404484280496, tenantId=1146029695717560320, journalId=1296125453100220459, articleId=1297211758255567164, language=CN, label=表6, caption=
优化前后表层粪污的铲抛量
, figureFileSmall=null, figureFileBig=null, tableContent=
工况 Working condition | 铲抛量Shoveling amount/(g·s-1) |
仿真试验 Simulated experiment | 样机试验 Prototype experiment | 相对误差 Relative error/ % |
| 优化前Before optimization | 310.55 | 285.20 | 8.89 |
| 优化后After optimization | 726.40 | 679.46 | 6.46 |
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