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Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 66-80 doi: 10.1007/s11465-019-0570-x

Abstract: In order to provide constant rotational axis for the platform, a class of redundant limbs are designedA class of redundant 2R1T parallel spindle heads is obtained by connecting the redundant limbs with theplatform and the redundant characteristics are verified by the modified Grübler-Kutzbach criterion.

Keywords： parallel mechanism     redundant mechanism     large rotational angles     machine tools     2R1T spindle head     collaborative    

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: In this paper, a means to achieve redundant actuation by adding kinematic constraints is introduced,

Keywords： redundant actuation     parallel manipulator     linkage–cam mechanism     Jacobian     optimal design    

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A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 463-467 doi: 10.1007/s11465-011-0225-z

Abstract: Hence, this paper proposes a redundantly actuated PRPRP radial mechanism for the segment erector.When the redundant actuator is unlocked, the radial mechanism is able to adjust its posture, which hasOn the other hand, when the redundant actuator is locked or produces enough pre-tightening tensile force, the PRPRP mechanism can ensure the synchronization of the two driving hydraulic cylinders along theThe redundant actuator also facilitates the equal application of two flexural torques at the hydraulic

Keywords： redundant actuation     parallel mechanisms     five-bar mechanisms     segment erectors     shield machines    

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Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 698-710 doi: 10.1007/s11465-021-0646-2

Abstract: The demand for redundant hydraulic manipulators that can implement complex heavy-duty tasks in unstructuredThis study proposes a seven-degree-of-freedom (7-DOF) redundant anthropomorphic hydraulically actuatedA hybrid series–parallel mechanism is presented to achieve the spherical wrist design, which consistsDesigned as a 1R PRRR-1S PU mechanism (“R”, “P”, “S”, and “U” denote revolute, prismatic, spherical,

Keywords： hydraulic manipulator     inverse kinematic     redundant design     spherical wrist    

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Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 607-616 doi: 10.1631/FITEE.14a0335

Abstract: The redundant humanoid manipulator has characteristics of multiple degrees of freedom and complex jointBased on these, an 8-DOF (degree of freedom) redundant humanoid manipulator is employed as an exampleThe proposed HBBO algorithm has been used to solve the inverse kinematics problem of the 8-DOF redundant

Keywords： Inverse kinematics problem     8-DOF humanoid manipulator     Biogeography-based optimization (BBO)     Differential evolution (DE)    

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A new feature selection method for handling redundant information in text classification None

You-wei WANG, Li-zhou FENG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 221-234 doi: 10.1631/FITEE.1601761

Abstract: Because of the difficulty in handling the problem that the selected features always contain redundantinformation, we propose a new simple feature selection method, which can effectively filter the redundantFinally, to improve the execution speed, the redundant features in FS1 are filtered by combining a predeterminedStatistical results validate the effectiveness of the proposed method in handling redundant information

Keywords： Feature selection     Dimensionality reduction     Text classification     Redundant features     Support vector machine    

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Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 413-428 doi: 10.1007/s11708-013-0274-6

Abstract: This paper proposes optimal redundant geographical locations in the northern, eastern and north-eastern

Keywords： phasor measurement unit (PMU)     smart grid (SG)     Indian power grid     northern region Indian power grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy     integer linear programing (ILP)    

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Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 435-450 doi: 10.1007/s11465-021-0630-x

Abstract: Seven-degree-of-freedom redundant manipulators with link offset have many advantages, including obviousSecondly, the analytical inverse kinematic solution for a non-offset spherical–roll–spherical (SRS) redundant

Keywords： 7-DOF redundant manipulator     inverse kinematics     semi-analytical     arm angle     link offset    

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Modeling and Analysis of Fault-tolerant System With Rejuvenation

Guo Chenghao,Liu Fengyu

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 75-79

Abstract: considers both hardware components' faults and "aging"  phenomenon, proposes composing redundant

Keywords： fault-tolerant system     software rejuvenation     software aging     redundant strategy     Non-Markovian stochastic    

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Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 399-411 doi: 10.1007/s11465-010-0116-8

Abstract: Conceptual design is the most critical and creative phase of design. Recently, increasing attention has been directed to supporting conceptual-level computer aided creative design and its theories and methodologies. Specifically, for conceptual design of mechanical products, this paper presents a novel function solving model for mechanical product design and highlights the importance of systematic synthesis to achieve creative design. Then it builds a framework as a function-effect-process-action- mechanisms (FEPAM) mapping process, which enables creative design on the basis of conceiving different action schemes. After that, several key points are elaborated including 1) representing and decomposition methods of functions and motion behaviors; 2) action scheme representing method based on network plan techniques; and 3) variation and creation methods based on action scheme transformations.

Keywords： mechanism system creative design     process model     function solving model     process action procedure     mechanismsknowledge base     principle of mechanism system composition    

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Formation mechanism and modeling of surface waviness in incremental sheet forming

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0679-1

Abstract: surface quality has always been a challenge for incremental sheet forming (ISF), whereas the generation mechanismIn this paper, the formation mechanism and the prediction of waviness are both investigated through experimentsengineering application, a theoretical model for waviness height is proposed based on the generation mechanismThis work is favorable for the perfection of formation mechanism and control of surface quality in ISF

Keywords： surface waviness     incremental sheet forming     numerical simulation     formation mechanism     deformation history    

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Autogenous healing mechanism of cement-based materials

Frontiers of Structural and Civil Engineering   Pages 948-963 doi: 10.1007/s11709-023-0960-3

Abstract: However, systematic research on the autogenous healing mechanism of cement-based materials is lackingScanning electron microscopy and optical microscopy were used to examine the autogenous healing mechanism

Keywords： autogenous healing     cement-based materials     healing mechanism     aggregation effect    

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Cryogenic minimum quantity lubrication machining: from mechanism to application

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 649-697 doi: 10.1007/s11465-021-0654-2

Abstract: Second, the cooling–lubrication mechanism of CMQL and its influence mechanism on material hardness, cuttingThe effects of CMQL are systematically analyzed based on its mechanism and application form.

Keywords： cryogenic minimum quantity lubrication (CMQL)     cryogenic medium     processing mode     device application     mechanism    

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: This article gives a detailed overview of the laser polishing mechanism by explaining various process

Keywords： laser polishing     surface roughness     process parameters     mechanism    

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Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 235-240 doi: 10.1007/s11465-011-0122-5

Abstract: flexible developing system (IFDS), this paper discusses the creation and open flexible integration mechanismBased on the operation mechanism of the modern instrumentation developing system and the research and

Keywords： modern instrumentation developing     flexible interconnection     flexible integration mechanism     rapid integration    

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Title Author Date Type Operation

Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

Journal Article

Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Journal Article

A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Journal Article

Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Journal Article

Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Journal Article

A new feature selection method for handling redundant information in text classification

You-wei WANG, Li-zhou FENG

Journal Article

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Journal Article

Modeling and Analysis of Fault-tolerant System With Rejuvenation

Guo Chenghao,Liu Fengyu

Journal Article

Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Journal Article

Formation mechanism and modeling of surface waviness in incremental sheet forming

Journal Article

Autogenous healing mechanism of cement-based materials

Journal Article

Cryogenic minimum quantity lubrication machining: from mechanism to application

Journal Article

Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Journal Article

Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Journal Article