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A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow force measurement

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机械工程前沿:英文版 2023年第2期18卷 297-317页

作者： Wendi GAO Bian TIAN Cunlang LIU Yingbiao MI Chen JIA Libo ZHAO Tao LIU Nan ZHU Ping YANG Qijing LIN Zhuangde JIANG Dong SUN State Key Laboratory for manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesOverseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline InnovationXi’an Jiaotong University(Yantai)Research Institute for Intelligent Sensing Technology and SystemSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Shandong Laboratory of Yantai Advanced Materials and Green manufacturing Yantai 265599China State Key Laboratory of robotics and Systems(HIT) Harbin 150006China Beijing Advanced Innovation Center for intelligent Robots and Systems Beijing Institute of TechnologyBeijing 100081China Department of Biomedical Engineering City University of Hong KongHong KongChina

Capacitive sensors are efficient tools for biophysical force measurement,which is essential for the exploration of cellular ***,attention has been rarely given on the influences of external mechanical and internal electrical interferences on capacitive *** this work,a bionic swallow structure design norm was developed for mechanical decoupling,and the influences of structural parameters on mechanical behavior were fully analyzed and optimized.A bionic feather comb distribution strategy and a portable readout circuit were proposed for eliminating electrostatic *** instability was evaluated,and electrostatic decoupling performance was verified on the basis of a novel measurement method utilizing four complementary comb arrays and applicationspecific integrated circuit *** electrostatic pulling experiment showed that the bionic swallow structure hardly moved by 0.770 nm,and the measurement error was less than 0.009% for the area-variant sensor and 1.118% for the gap-variant sensor,which can be easily compensated in *** proposed sensor also exhibited high resistance against electrostatic rotation,and the resulting measurement error dropped below 0.751%.The rotation interferences were less than 0.330 nm and(1.829×10^(-7))°,which were 35 times smaller than those of the traditional differential *** on the proposed bionic decoupling method,the fabricated sensor exhibited overwhelming capacitive sensitivity values of 7.078 and 1.473 pF/μm for gap-variant and area-variant devices,respectively,which were the highest among the current *** immunity to mechanical disturbances was maintained simultaneously,i.e.,less than 0.369% and 0.058% of the sensor outputs for the gap-variant and area-variant devices,respectively,indicating its great performance improvements over existing devices and feasibility in ultralow biomedical force measurement.

关键词： micro-electro-mechanical system capacitive sensor bionics operation instability mechanical and electrical decoupling biomedical force measurement

Toward intelligent manufacturing: label characters marking and recognition method for steel products with machine vision

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Advances in manufacturing 2014年第1期2卷 3-12页

作者： Qi-Jie Zhao Peng Cao Da-Wei Tu School of Mechatronics Engineering and Automation Shanghai Key Laboratory of Intelligent Manufacturing and RoboticsShanghai university

Correctly coding materials and identifying characters marked on materials are very important for steel manufacturing industry to realize informatization management and intelligent manufacturing. However, the steel products manufacturing is often in a high temperature environment, and there are a lot of material storage and retrieval processes, workers are not easily close to the environment and complete tasks, so it is a great challenge to automatically mark and identify characters on the steel products. This paper presents a framework of label characters marking and management for steel materials, furthermore, a kind of marked characters online detection and tracking method has been provided based on machine vision. In addition, some experiments have been done in BaoSteel to mark characters on hot billets and recognize them in multi situations, and the results show that the proposed method is practical, and has provided a helpful exploration in obtaining accurate fundamental data for the intelligent manufacturing system in steelworks.

关键词： intelligent manufacturing Enterprisesinformatization Label character marking Machinevision Marked character recognition

Hybrid Multi-Object Optimization Method for Tapping Center Machines

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intelligent Automation & Soft Computing 2023年第4期36卷 23-38页

作者： Ping-Yueh Chang Fu-I Chou Po-Yuan Yang Shao-Hsien Chen Department of Electrical Engineering National Kaohsiung University of Science and TechnologyKaohsiung807China Taiwan Department of intelligent robotics National Pingtung UniversityPingtung900China Taiwan Graduate Institute of Precision manufacturing National Chin-Yi University of TechnologyTaichung411China Taiwan

This paper proposes a hybrid multi-object optimization method integrating a uniform design,an adaptive network-based fuzzy inference system(ANFIS),and a multi-objective particle swarm optimizer(MOPSO)to optimize the rigid tapping parameters and minimize the synchronization errors and cycle times of computer numerical control(CNC)***,rigid tapping parameters and uniform(including 41-level and 19-level)layouts were adopted to collect representative data for ***,ANFIS was used to build the model for the collected 41-level and 19-level uniform layout experiment *** tapping center machines,the synchronization errors and cycle times are important consid-erations,so these two objects were used to build the ANFIS ***,a MOPSO algorithm was used to search for the optimal parameter combinations for the two ANFIS models *** experimental results showed that the proposed method obtains suitable parameter values and optimal parameter combinations compared with the nonsystematic ***,the optimal parameter combination was used to optimize existing CNC tools during the commissioning *** the proportional and integral gains of the spindle could improve resistance to deformation during rigid *** posi-tion gain and prefeedback coefﬁcient can reduce the synchronization errors signiﬁcantly,and the acceleration and deceleration times of the spindle affect both the machining time and synchronization *** proposed method can quickly and accurately minimize synchronization errors from 107 to 19.5 pulses as well as the processing time from 3,600 to 3,248 ms;it can also shorten the machining time signiﬁcantly and reduce simultaneous errors to improve tapping yield,there-by helping factories achieve carbon reduction.

关键词： Tapping center machine uniform design adaptive network-based fuzzy inference system(ANFIS) multi-objective particle swarm optimizer

Design and experimental study of a passive power-source-free stiffness-self-adjustable mechanism

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Frontiers of Mechanical Engineering 2021年第1期16卷 32-45页

作者： Yuwang LIU Dongqi WANG Shangkui YANG Jinguo LIU Guangbo HAO State Key Laboratory of robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China institutes for robotics and intelligent manufacturing Chinese Academy of SciencesShenyang 110169China School of Engineering-Electrical and Electronic Engineering University College CorkCorkIreland

Passive variable stiffness joints have unique advantages over active variable stiffness joints and are currently eliciting increased *** passive variable stiffness joints rely mainly on sensors and special control algorithms,resulting in a bandwidth-limited response speed of the *** propose a new passive power-source-free stiffness-self-adjustable mechanism that can be used as the elbow joint of a robot *** new mechanism does not require special stiffness regulating motors or sensors and can realize large-range self-adaptive adjustment of stiffness in a purely mechanical *** variable stiffness mechanism can automatically adjust joint stiffness in accordance with the magnitude of the payload,and this adjustment is a successful imitation of the stiffness adjustment characteristics of the human *** response speed is high because sensors and control algorithms are not *** variable stiffness principle is explained,and the design of the variable stiffness mechanism is analyzed.A prototype is fabricated,and the associated hardware is set up to validate the analytical stiffness model and design experimentally.

关键词： variable stiffness mechanism stiffness self-regulation bionic robot modeling

Enhanced cathodic activity by tantalum inclusion at B-site of La_(0.6)Sr_(0.4)Co_(0.4)Fe_(0.6)O_(3)based on structural property tailored via camphor-assisted solid-state reaction

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Journal of Advanced Ceramics 2022年第8期11卷 1330-1342页

作者： Dingyu XIONG Sefiu Abolaji RASAKI Yangpu LI Liangdong FAN Changyong LIU Zhangwei CHEN Additive manufacturing Institute Shenzhen UniversityShenzhen 518060China Guangdong Key Laboratory of Electromagnetic Control and intelligent robotics Shenzhen UniversityShenzhen 518060China Department of Chemical and Petroleum Engineering University of CalgaryCalgary T2N1N4Canada College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China

Lanthanum strontium cobalt ferrite(LSCF)is an appreciable cathode material for solid oxide fuel cells(SOFCs),and it has been widely investigated,owing to its excellent thermal and chemical ***,its poor oxygen reduction reaction(ORR)activity,particularly at a temperature of≤800℃,causes setbacks in achieving a peak power density of>1.0 W·cm^(-2),limiting its application in the commercialization of *** improve the ORR of LSCF,doping strategies have been found ***,the porous tantalum-doped LSCF materials(La_(0.6)Sr_(0.4)Co_(0.4)Fe_(0.5)7Ta_(0.03)O_(3)(LSCFT-0),La_(0.6)Sr_(0.4)Co_(0.4)Fe_(0.5)4Ta0.06O_(3),and La_(0.6)Sr_(0.4)Co_(0.4)Fe_(0.5)Ta0.1O_(3))are prepared via camphor-assisted solid-state reaction(CSSR).The LSCFT-0 material exhibits promising ORR with area-specific resistance(ASR)of 1.260,_(0.5)80,0.260,0.100,and 0.06Ω·cm^(2)at 600,650,700,750,and 800℃,*** performance is about 2 times higher than that of undoped La_(0.6)Sr_(0.4)Co_(0.4)Fe_(0.6)O_(3)with the ASR of 2.515,1.191,_(0.5)96,0.320,and 0.181Ω·cm^(2)from the lowest to the highest *** material characterization,it was found that the incorporated Ta occupied the B-site of the material,leading to the enhancement of the ORR *** the use of LSCFT-0 as the cathode material for anode-supported single-cell,the power density of>1.0 W·cm^(-2)was obtained at a temperature<800℃.The results indicate that the CSSR-derived LSCFT is a promising cathode material for SOFCs.

关键词： tantalum-doped lanthanum strontium cobalt ferrite(LSCF) solid oxide fuel cell(SOFC) oxygen reduction reaction(ORR) solid-state synthesis reaction clean energy conversion

Study of the Dynamic Characteristics of A Cone-Shaped Recovery System on Submarines for Recovering Autonomous Underwater Vehicle

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China Ocean Engineering 2020年第3期34卷 387-399页

作者： MENG Ling-shuai LIN Yang GU Hai-tao SU Tsung-Chow State Key Laboratory of robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China institutes for robotics and intelligent manufacturing Chinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Florida Atlantic University Boca RatonFL 33431USA

National navies equip their submarines with Autonomous Underwater Vehicle(AUV)*** has become an important component of submarine development in technologically-advanced *** advanced and reliable recovery systems directly improves the safety and operational efficiency of submarines equipped with *** this paper,based on aerial refueling technology,a cone-shaped recovery system with two different guiding covers(closed structure and frame structure)is applied to the *** taking the Suboff model as the research object,STAR-CCM was used to study the influence of the installation position of the recovery system,and the length of the rigid rod,on the Suboff *** was found that when the recovery system is installed in the middle and rear of the Suboff model at the same velocity and the same length of the rigid rod,the Suboff model has the good stability and less *** experiences the largest drag when being installed in the front of the rigid ***,when the recovery system is installed in the front and middle of the rigid rod,the drag increases as its length increases,and the lift decreases as its length *** with the closed structure guiding cover,the Suboff model will have less drag and better stability when the recovery system uses the frame structure guiding ***,the deflection and vibration of the rigid rod were also analyzed via mathematical theory.

关键词： cone-shaped recovery system submarine computational fluid dynamics(CFD) hydrodynamics deflection vibration

Digital twin-based sustainable intelligent manufacturing: a review

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Advances in manufacturing 2021年第1期9卷 1-21页

作者： Bin He Kai-Jian Bai Shanghai Key Laboratory of intelligent manufacturing and robotics School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200444People's Republic of China

As the next-generation manufacturing system,intelligent manufacturing enables better quality,higher productivity,lower cost,and increased manufacturing *** concept of sustainability is receiving increasing attention,and sustainable manufacturing is *** digital twin is an emerging technology used in intelligent manufacturing that can grasp the state of intelligent manufacturing systems in real-time and predict system *** intelligent manufacturing based on a digital twin has advantages in practical *** fully understand the intelligent manufacturing that provides the digital twin,this study reviews both technologies and discusses the sustainability of intelligent ***,the relevant content of intelligent manufacturing,including intelligent manufacturing equipment,systems,and services,is *** addition,thesustainability of intelligent manufacturing is ***,a digital twin and its application are introduced along with the development of intelligent manufacturing based on the digital twin ***,combined with the current status,the future development direction of intelligent manufacturing is presented.

关键词： intelligent manufacturing Digital twin Advanced manufacturing Industry 4.0 Sustainable manufacturing

Modeling and simulation of percussive impact for robotic riveting system

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Advances in manufacturing 2014年第4期2卷 344-352页

作者： Shuai Guo Song-Liang Nie Feng-Feng Xi Tao Song Shanghai Key Laboratory of intelligent manufacturing and robotics Shanghai University Department of Aerospace Engineering Ryerson University

Riveting is one of the major joining methods used in assembly, and the robotic riveting has been grad- ually introduced into aircraft industry. In this paper, a method is presented for modeling and simulation of per- cussive robotic riveting. In percussive riveting, vibration always exists. When an impact force is employed, a forced vibration will be induced. If it resonates with a robot nat- ural frequency, the vibration will cause damage to the robot. The main content of this paper is divided into three parts. Firstly, a robot dynamic model is established to compute the driving torque for each joint. Secondly, vibration responses under impact are analyzed for the percussive riveting process. Thirdly, the effect of riveting on robot vibration is studied over the robot workspace. The purpose of this paper is to discuss the suitable regions for riveting where the robot vibration is very minimal. It is shown that based on the presented method an appropriate trajectory can be planned for robotic riveting.

关键词： Robotic dynamics Analysis Vibrationresponse Impact force Riveting

Evaluation of different crosslinking methods in altering the properties of extrusion-printed chitosan-basedmulti-material hydrogel composites

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Bio-Design and manufacturing 2023年第2期6卷 150-173页

作者： Suihong Liu Haiguang Zhang Tilman Ahlfeld David Kilian Yakui Liu Michael Gelinsky Qingxi Hu Centre for Translational Bone Joint and Soft Tissue ResearchFaculty of Medicine and University Hospital Carl Gustav CarusTechnische Universität Dresden01307 DresdenGermany Rapid manufacturing Engineering Center School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200444China Shanghai Key Laboratory of intelligent manufacturing and robotics School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200444China National Demonstration Center for Experimental Engineering Training Education Shanghai UniversityShanghai 200444China

Three-dimensional printing technologies exhibit tremendous potential in the advancing fields of tissue engineering and regenerative medicine due to the precise spatial control over depositing the *** their widespread utilization and numerous advantages,the development of suitable novel biomaterials for extrusion-based 3D printing of scaffolds that support cell attachment,proliferation,and vascularization remains a ***-material composite hydrogels present incredible potential in this ***,in this work,a multi-material composite hydrogel with a promising formulation of chitosan/gelatin functionalized with egg white was developed,which provides good printability and shape *** addition,a series of comparative analyses of different crosslinking agents and processes based on tripolyphosphate(TPP),genipin(GP),and glutaraldehyde(GTA)were investigated and compared to select the ideal crosslinking strategy to enhance the physicochemical and biological properties of the fabricated *** of the results indicate that the composite hydrogel and the resulting scaffolds utilizing TPP crosslinking have great potential in tissue engineering,especially for supporting neo-vessel growth into the scaffold and promoting angiogenesis within engineered tissues.

关键词： Multi-material composite hydrogel Crosslinking mechanism Chitosan Gelatin Egg white 3D printing