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An impact angle constraint integral sliding mode guidance law for maneuvering targets interception

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Journal of Systems Engineering and Electronics 2020年第1期31卷 168-184页

作者： ZHANG Wenjie fu shengnan LI Wei XIA Qunli School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China

An integral sliding mode guidance law(ISMGL)combined with the advantages of the integral sliding mode control(SMC)method is designed to address maneuvering target interception problems with impact angle *** relative motion equation of the missile and the target considering the impact angle constraint is established in the longitudinal plane,and an integral sliding mode surface is *** proposed guidance law resolves the existence of a steady-state error problem in the traditional *** a guidance law ensures that the missile hits the target with an ideal impact angle in finite time and the missile is kept highly robust throughout the interception *** adopting the dynamic surface control method,the ISMGL is designed considering the impact angle constraints and the autopilot dynamic *** to the Lyapunov stability theorem,all states of the closed-loop system are finally proven to be uniformly *** results are compared with the general sliding mode guidance law and the trajectory shaping guidance law,and the findings verify the effectiveness and superiority of the ISMGL.

关键词： impact angle constraint integral sliding mode maneuvering target Lyapunov stability dynamic characteristic

Multiconstraint adaptive three-dimensional guidance law using convex optimization

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Journal of Systems Engineering and Electronics 2020年第4期31卷 791-803页

作者： fu shengnan LIU Xiaodong ZHANG Wenjie XIA Qunli School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Aerospace Automatic Control Institute Beijing 100854China School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China

The traditional guidance law only guarantees the accuracy of attacking a target. However, the look angle and acceleration constraints are indispensable in applications. A new adaptive three-dimensional proportional navigation(PN) guidance law is proposed based on convex optimization. Decomposition of the three-dimensional space is carried out to establish threedimensional kinematic engagements. The constraints and the performance index are disposed by using the convex optimization method. PN guidance gains can be obtained by solving the optimization problem. This solution is more rapid and programmatic than the traditional method and provides a foundation for future online guidance methods, which is of great value for engineering applications.

关键词： proportional navigation(PN) adaptive guidance law three-dimensional space second-order cone programming(SOCP) convex optimal control

Trajectory optimization of a reentry vehicle based on artificial emotion memory optimization

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Journal of Systems Engineering and Electronics 2021年第3期32卷 668-680页

作者： fu shengnan WANG Liang XIA Qunli School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Aerospace Automatic Control Institute Beijing 100854China School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China

The trajectory optimization of an unpowered reentry vehicle via artificial emotion memory optimization(AEMO)is ***,reentry dynamics are established based on multiple constraints and parameterized control variables with finite dimensions are *** the constraint is not satisfied,a distance measure and an adaptive penalty function are used to address this ***,AEMO is introduced to solve the trajectory optimization *** on the theories of biology and cognition,the trial solutions based on emotional memory are *** search strategies are designed for realizing the random search of trial solutions and for avoiding becoming trapped in a local *** states of the trial solutions are determined according to the rules of memory enhancement and *** the iterations proceed,the trial solutions with poor quality will gradually be ***,the number of trial solutions is decreased,and the convergence of the algorithm is ***,a numerical simulation is conducted,and the results demonstrate that the path and terminal constraints are satisfied and the method can realize satisfactory performance.

关键词： trajectory optimization adaptive penalty function artificial emotion memory optimization(AEMO) multiple constraint

Tuning the crystalline and electronic structure of ZrO_(2)via oxygen vacancies and nano-structuring for polysulfides conversion in lithium-sulfur batteries

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Journal of Energy Chemistry 2024年第1期88卷 82-93,I0003页

作者： shengnan fu Chaowei Hu Jing Li Hongtao Cui Yuanyuan Liu Kaihua Liu Yanzhao Yang Meiri Wang Shandong Key Laboratory for Chemical Engineering and Processing School of Chemistry&Chemical EngineeringYantai UniversityYantai 264000ShandongChina Key Laboratory for Special functional Aggregate Materials of Education Ministry School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100ShandongChina

The recent emergence of tetragonal phases zirconium dioxide(ZrO_(2))with vacancies has generated significant interest as a highly efficient and stable electrocatalyst with potential applications in trapping polysulfides and facilitating rapid conversion in lithium-sulfur batteries(LSBs).However,the reduction of ZrO_(2)is challenging,even under strong reducing atmospheres at high temperatures and ***,the limited presence of oxygen vacancies results in insufficient active sites and reaction interfaces,thereby hindering practical ***,we successfully introduced abundant oxygen vacancies into ZrO_(2)at the nanoscale with the help of carbon nanotubes(CNTs-OH)through hydrogen-etching at lower temperatures and *** introduced oxygen vacancies on ZrO_(2-x)/CNTs-OH can effectively rearrange charge distribution,enhance sulfiphilicity and increase active sites,contributing to high ionic and electronic transfer kinetics,strong binding energy and low redox barriers between polysulfides and ZrO_(2-x).These findings have been experimentally validated and supported by theory *** a result,LSBs assembled with the ZrO_(2-x)/CNTs-OH modified separators demonstrate excellent rate performance,superior cycling stability,and ultra-high sulfur ***,at high sulfur loading of 6 mg cm^(-2),the area capacity is still up to 6.3 mA h cm^(-2).This work provides valuable insights into the structural and functional optimization of electrocatalysts for batteries.

关键词： Lithium-sulfur batteries Oxygen vacancies Zirconium dioxide/carbon nanotubes with–OH Improved redox kinetics Superior cycling stability

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基于复杂人致激励作用下的楼盖振动响应分析

工业建筑 2022年第3期52卷 123-131页

作者：符胜男王斌天津城建大学土木工程学院天津300384

为探究体育馆楼盖结构在复杂激励下的振动力学性能,使用动态信号采集分析系统,以试验的方式测定体育馆的不同分布试点的速度响应及能量分布变化规律,全程研究分析楼盖在单人和双人激励下的振动特性,通过试验分析总结得出,各个试点的能... 详细信息

为探究体育馆楼盖结构在复杂激励下的振动力学性能,使用动态信号采集分析系统,以试验的方式测定体育馆的不同分布试点的速度响应及能量分布变化规律,全程研究分析楼盖在单人和双人激励下的振动特性,通过试验分析总结得出,各个试点的能量分布受到支撑的约束形式、不同种类的激励模式、加载激励的位置等因素影响,其中,加载在不同分布试点的激励位置是决定能量分布规律的主要因素。相对于行走、跳跃、奔跑、Bounce等不同激励类型而言,跳跃激励相对于Bounce激励具有更多的输入能量,使各试点的响应呈现出更规律的拍振形式,而Bounce荷载作用下的能量被楼盖吸收,使结构呈现出一种随机动力响应。

关键词：人致荷载复杂激励振动特性速度响应谱

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基于隔离度特性的导引头控制系统优化设计

系统工程与电子技术 2018年第2期40卷 375-383页

作者：刘石祥杜肖符胜楠夏群利北京理工大学机电学院北京100081 中国运载火箭技术研究院北京100076 北京理工大学宇航学院北京100081

为了提高导引头隔离度及其时域特性的综合性能,提出了一种基于隔离度特性的导引头控制系统内外回路优化设计方法。通过建立导引头隔离度模型,推导隔离度传递函数,分析了导引头隔离度与内外回路的关系。将导引头幅值裕度和相位裕度约束,... 详细信息

为了提高导引头隔离度及其时域特性的综合性能,提出了一种基于隔离度特性的导引头控制系统内外回路优化设计方法。通过建立导引头隔离度模型,推导隔离度传递函数,分析了导引头隔离度与内外回路的关系。将导引头幅值裕度和相位裕度约束,采用幅值-相位测试方法转化为求解控制参数的稳定域,分别建立了以隔离度特性最优的稳定回路目标函数和以时域响应特性最优的跟踪回路目标函数,通过在稳定域内求解优化问题,得到导引头的优化设计参数。仿真结果表明,采用基于隔离度特性的导引头控制系统内外回路优化设计方法,能够保证控制系统具有更好的时域性能和隔离度特性。

关键词：导引头隔离度传递函数稳定裕度优化

基于视觉与触觉双信息的上肢康复训练机器人运维系统设计

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机械设计与制造工程 2020年第4期49卷 38-41页

作者：付胜男北京中医医院顺义医院信息建设部北京101300

针对传统上肢康复器械信息处理缓慢、康复效果差的问题,设计基于视觉与触觉双信息的上肢康复训练机器人运维系统。在系统硬件部分,采用三维触觉操作器Phantom操控虚拟手臂,利用Camshift算法完成对不同颜色物体的跟踪,通过加权集成算法... 详细信息

针对传统上肢康复器械信息处理缓慢、康复效果差的问题,设计基于视觉与触觉双信息的上肢康复训练机器人运维系统。在系统硬件部分,采用三维触觉操作器Phantom操控虚拟手臂,利用Camshift算法完成对不同颜色物体的跟踪,通过加权集成算法实现对触觉压力数据的操作;在系统软件部分,基于ARAT的抓握测试,评估手臂的抓握能力,采用双侧训练模式和脑电训练模式,修复患者肌力受损部位,通过奇异值分解方法,完成对矩阵目标函数值的求解,利用ICP算法处理图像轮廓特征点,实现图像的配准。实验结果表明,该系统配准精度高,可以完成预期目标,且跟踪效果佳。

关键词：视觉触觉双信息上肢康复训练机器人运维

刚地弓形虫致密颗粒蛋白24多克隆抗体的制备与初步应用

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中国血吸虫病防治杂志 2024年第3期36卷 279-285页

作者：付胜男杨云王聪罗庆礼余莉安徽医科大学基础医学院微生物学教研室、动物源性传染病安徽省重点实验室、人畜共患病安徽高校省级重点实验室安徽合肥230032

目的制备并鉴定鼠抗刚地弓形虫致密颗粒蛋白24(dense granule protein 24,GRA24)多克隆抗体,并探索其初步应用。方法利用MEGA-X软件比对弓形虫不同虫株GRA24编码区序列,使用Protean软件分析GRA24蛋白优势肽段,通过PCR反应扩增编码该肽... 详细信息

目的制备并鉴定鼠抗刚地弓形虫致密颗粒蛋白24(dense granule protein 24,GRA24)多克隆抗体,并探索其初步应用。方法利用MEGA-X软件比对弓形虫不同虫株GRA24编码区序列,使用Protean软件分析GRA24蛋白优势肽段,通过PCR反应扩增编码该肽段的碱基序列,并连接至p ET-28a载体中。将获得的GRA24截短蛋白原核表达质粒转化于大肠埃希菌BL21感受态细胞中,异丙基-β-D-硫代半乳糖苷(isopropyl-beta-D-thiogalactopyranoside,IPTG)诱导后采用十二烷基硫酸钠聚丙烯酰胺凝胶电泳(sodium dodecyl sulfate-polyacrylamide gel electrophoresis,SDS-PAGE)检测蛋白表达与纯化。使用纯化的GRA24截短蛋白皮下注射免疫BALB/c小鼠获得GRA24截短蛋白多克隆抗体,采用酶联免疫吸附试验(enzyme-linked immunosorbent assay,ELISA)检测抗体效价,采用Western blotting检测抗体特异性,并将该抗体应用于免疫荧光试验(immunofluorescence assay,IFA)。结果SDS-PAGE结果表明成功构建重组质粒,考马斯亮蓝染色结果显示获得高纯度重组GRA24截短蛋白。ELISA结果显示,GRA24截短蛋白多克隆抗体效价在1∶208400以上;Western blotting检测发现,该抗体可识别弓形虫不同虫株内源性GRA24蛋白,特异性识别重组GRA24截短蛋白;间接IFA检测发现,弓形虫入侵宿主细胞16 h后分泌的GRA24蛋白定位于宿主细胞核中。结论成功制备广适性、高效价、强特异性的抗弓形虫GRA24多克隆抗体,可应用于Western blotting与IFA,为进一步研究GRA24功能奠定了基础。

关键词：刚地弓形虫致密颗粒蛋白24 多克隆抗体免疫荧光

一类具有状态脉冲控制的捕食-食饵模型的动力学研究

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湖北民族学院学报（自然科学版） 2019年第1期37卷 45-49,53页

作者：付胜男李祖雄湖北民族大学理学院湖北恩施445000

通过建立一类捕食-食饵模型,对其加以状态脉冲控制,利用脉冲微分方程几何理论,研究该模型在正平衡点全局稳定且当脉冲值大于正平衡点的捕食者密度时,系统阶一周期解的存在唯一性,并得到了周期解唯一存在且稳定的充分条件.并在最后通过... 详细信息

通过建立一类捕食-食饵模型,对其加以状态脉冲控制,利用脉冲微分方程几何理论,研究该模型在正平衡点全局稳定且当脉冲值大于正平衡点的捕食者密度时,系统阶一周期解的存在唯一性,并得到了周期解唯一存在且稳定的充分条件.并在最后通过数值模拟验证结论的正确性.

关键词：状态脉冲稳定性阶一周期解脉冲集相集