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基于非线性积分快速终端滑模的拖拉机路径跟踪控制方法

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拖拉机与农用运输车 2024年第3期51卷 38-41页

作者：尹涛任德良吴孟于修刚高强韩兴昌山东省农业机械科学研究院山东济南250100 智能农业动力装备全国重点实验室河南洛阳471039

为提高拖拉机田间作业路径跟踪控制的精度,本研究提出了一种基于非线性积分快速终端滑模的拖拉机路径跟踪控制方法。首先,建立拖拉机两轮动力学模型;然后,结合非线性积分滑模面和快速终端滑模趋近律设计拖拉机路径跟踪控制器,减小了传... 详细信息

为提高拖拉机田间作业路径跟踪控制的精度,本研究提出了一种基于非线性积分快速终端滑模的拖拉机路径跟踪控制方法。首先,建立拖拉机两轮动力学模型;然后,结合非线性积分滑模面和快速终端滑模趋近律设计拖拉机路径跟踪控制器,减小了传统滑模控制普遍存在的抖振和稳态误差,使用李雅普诺夫判据检验了控制器的稳定性。通过Matlab/Simulink建立了拖拉机路径跟踪仿真模型,对所提方法进行路径跟踪仿真试验。试验结果表明,拖拉机曲线路径跟踪的最大横向偏差为0.011 m,满足拖拉机跟踪田间作业路径的精度需求。

关键词：路径跟踪控制拖拉机快速终端滑模非线性积分

Geographical Indication and Unique Production Technology of Zhengcheng Honeysuckle

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Asian Agricultural Research 2021年第1期13卷 54-57,63页

作者： Qian ZHANG Fenggang ZHANG Peifeng DING Nannan LIU yucheng LU Jingmei PENG xiugang yu Yongliang WANG Xiangyan CHEN Xiao WANG Linyi Academy of Agricultural Sciences Linyi 276012 China Agricultural Office of Baishabu Town Lanshan District Linyi City Linyi 276035 China Agricultural Comprehensive Service Center of Taiping Street Hedong District Linyi City Linyi 276029 China Agriculture and Rural Bureau of Pingyi County Pingyi 273300 China Agricultural Office of Zhengcheng Town Pingyi County Pingyi 273311 China Agricultural Comprehensive Service Center of Guichang Township Tancheng County Tancheng 276122 China Agricultural and Rural Bureau of Feixian County Feixian 273400 China Pingyi yuanTong Traditional Chinese Medicine Technology Development Co. Ltd. Pingyi 273303 China

The specific production area,unique production environment,rich humanistic history and unique production quality of Zhengcheng honeysuckle,a featured product of Pingyi County,Shandong Province and a national geographic indication agricultural product are described in this *** unique production method for Zhengcheng honeysuckle is summarized from the aspects of production area selection,variety selection,production management,harvesting,processing and packaging,and corresponding development measures for the industry are proposed,aiming to maintain the Zhengcheng honeysuckle brand to the greatest extent and further increase the popularity of Zhengcheng honeysuckle.

关键词： Zhengcheng honeysuckle Geographical indication Production mode Industrial development measure Pingyi County Shandong Province

我国油菜移栽机研发现状与链夹式移栽机的改进

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农机化研究 2011年第1期33卷 232-234,239页

作者：于修刚袁文胜吴崇友农业部南京农业机械化研究所南京210014

我国目前油菜移栽基本上是人工作业,效率低,耗工多。近几年机器移栽开始应用于油菜移栽,但是移栽机本身还存在多种技术问题,有待于解决。为此,通过调查和实验,对几种油菜移栽机存在的问题进行了分析,提出了链夹式移栽机改进的思路和方法。

关键词：油菜移栽链夹式

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轮式拖拉机分类及主要技术要求

机械管理开发 2023年第9期38卷 75-77页

作者：陈光阔于修刚黄杰韩兴昌山东省农业机械科学研究院山东济南250100 山东省农业机械技术推广站山东济南250013

围绕拖拉机结构型式及其技术要求进行了研究。以轮式拖拉机为研究对象,根据其传动型式、发动机标定功率大小和用途等探讨了相应的生产标准,并分析了其主要技术要求,为相关行业的研究提供参考。

关键词：轮式拖拉机型号编制技术要求

Geographical Indication of Unique Production Technology of Bahu Lotus Root

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Asian Agricultural Research 2020年第10期12卷 48-51页

作者： Huaen YANG Yangang LIU Shiliang LIU Zhaotang SHEN Jing WANG Hui ZUO Chunguang LI xiugang yu Deyou LIU Agricultural Technology Extension Center of Hedong District Linyi CityLinyi 276034China Linyi Academy of Agricultural Sciences Linyi 276012China Agricultural Comprehensive Service Center of Shizi Road Street Junan CountyJunan 276600China Linyi Agricultural Quality Inspection Center Linyi 276000China Agricultural Comprehensive Service Center of Guichang Township Tancheng CountyTancheng 276122China

Bahu lotus root is a specialty of Hedong District,Linyi City,Shandong *** was recognized as a national product of geographical indication in *** article describes the specific production area,unique production environment,rich cultural history and unique quality of Bahu lotus root,and summarizes its unique production from four aspects:selection of origin,selection of variety,production management and timely harvest,aiming to maintain the brand of Bahu lotus root to the greatest extent and further enhance the brand value and influence.

关键词： Bahu lotus root Geographical indication Production technology Linyi City Shandong Province

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齿盘式拔棉秆机的仿真设计与运动分析

农业装备与车辆工程 2011年第10期49卷 5-7页

作者：王小瑜荐世春马继春于修刚山东省农业机械科学研究所山东济南250100

以市场上现有的齿盘式拔棉秆机为基础,采用SolidWorks三维设计软件设计了棉花秸秆拔秆机,建立仿真模型,结合COSMOS/Motion、COSMOS/Work和Simulation对所设计的拔棉秆机进行了机构运动分析,模拟了拖拉机前进与拔取部件旋转复合运动的余... 详细信息

以市场上现有的齿盘式拔棉秆机为基础,采用SolidWorks三维设计软件设计了棉花秸秆拔秆机,建立仿真模型,结合COSMOS/Motion、COSMOS/Work和Simulation对所设计的拔棉秆机进行了机构运动分析,模拟了拖拉机前进与拔取部件旋转复合运动的余摆线轨迹,分析了单个点的运动轨迹分量,力图为齿盘式拔棉秆机的发展提供试验参考和理论依据。

关键词：拔棉秆机仿真设计 SolidWorks simulation

Prevalence Characteristics of Rice Black-streaked Dwarf Virus Disease and Continuous Control Strategies

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Asian Agricultural Research 2021年第6期13卷 54-58页

作者： Deyou LIU Yangang LIU Lijuan LIU Xiaomei CUI Zhaotang SHEN Jinqian LIU xiugang yu Zhouliang WANG Shengfeng ZHANG Qingquan MU Xiushan ZHAO Linyi Academy of Agricultural Sciences Linyi 276012 China Shizilu Neighbourhood Agricultural Comprehensive Service Center of Ju'nan County Ju'nan 276600 China Guichang Township Agricultural Comprehensive Service Center of Tancheng County Tancheng 276122 China Pulianji Town Agricultural and Rural Service Center of Cao County Cao County 274400 China

Through summarizing the prevalence characteristics of rice black-streaked dwarf virus disease(RBSDVD)in Linyi City of Shandong Province,this paper analyzed its prevalence is related to changes in farming and cultivation systems,the increase in the population of venomous Laodelphax striatellus Fallén and its own migration and spread,the poor disease resistance of cultivated varieties,and inadequate time of prevention and ***,based on the practice of local control,it came up with some comprehensive control measures including strengthening monitoring,early warning and forecasting,planting resistant(tolerant)rice varieties according to local conditions,appropriately delaying the sowing(planting)period,supplemented by insect nets to cover seedlings,and making scientific use of chemical *** is expected to provide a reference for the prevention and control of RBSDVD.

关键词： Rice black-streaked dwarf virus disease(RBSDVD) Characteristics Prevalence reasons Monitoring and early warning forecast Comprehensive prevention and control measures

High-efficiency saturated red emission from binuclear cyclo-metalated platinum complex containing 5-(4-octyloxyphenyl)-1,3,4-oxadiazole-2-thiol ancillary ligand in PLEDs

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Science China Chemistry 2013年第8期56卷 1137-1142页

作者： yu JunTing WU xiugang TAN Hua LIU yu WANG YaFei ZHU MeiXiang ZHU WeiGuo Key laboratory of Environment-Friendly Chemistry and Application Ministry of Education College of Chemistry Xiangtan University

A novel red-emitting binuclear platinum complex （dfppy）zPtz（C^OXT）z was synthesized and characterized, in which dfppy represents 2-（4＇,6＇-difluorophenyl）pyridinato unit and CsOXT is abbreviated for 5-（4-octyloxyphenyl）-1,3,4-oxadiazole-2-thiol as a bridging ancillary ligand. Its photophysical, electrochemical and electroluminescent characteristics were primarily studied. The made single-emissive-layer （SEL） polymer light-emitting devices using （dfppy）2Ptz（CsOXT）2 as emitter exhibited a satu- rated red emission peaked at 620 nm. The best device performances were obtained in the device at 8 wt% dopant concentration, with a maximum external quantum efficiency of 8.4%, a current efficiency of 4.2 cd/A and brightness of 3228 cd/m~. This work provides an effective approach to obtain high-efficiency red emission through construction of new binuclear platinum complex and its doped SEL devices.

关键词： binuclear platinum complexes red emission electroluminescence oxadiazole polymer light-emitting devices

基于GB/T 19498的拖拉机防护装置试验结果的一致性研究

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农业装备与车辆工程 2021年第5期59卷 126-128页

作者：李先鹏王钦祥兰翼陈光阔于修刚山东省农业机械科学研究院山东省济南市250100

GB/T19498农林拖拉机防护装置静态试验方法和验收条件是目前国内应用最为广泛的考核拖拉机防护装置强度的试验方法,应用该试验方法对同一型号的3个样品分别进行试验,并对试验结果进行比对分析,目的是验证该试验方法试验结果的一致性。

关键词：拖拉机防护装置强度试验一致性