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Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 765-781 doi: 10.1007/s11465-021-0655-1

Abstract: Generalized parallel mechanisms with a configurable moving platform have become popular in the researchfield of parallel mechanism.based on the generalized parallel mechanisms with a configurable moving platform.A family of novel gripper mechanisms can be assembled through the hybrid limbs by satisfying the ruleTwo examples of the gripper mechanisms with and without parallelogram pairs are shown in this study.

Keywords： generalized parallel mechanism configurable moving platform gripper mechanism type synthesis kinematic

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Design and analysis of partially decoupled translational parallel mechanisms with single-loop structures

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0695-1

Abstract: This study presents a family of novel translational parallel mechanisms (TPMs) with single-loop topological

Keywords： translational parallel mechanism single loop multiple driving system workspace analysis singularity

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Gripping mechanisms in current wood harvesting machines

D. GOUBET, J. C. FAUROUX, G. GOGU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 42-61 doi: 10.1007/s11465-013-0358-3

Abstract:

This paper focuses on the structural synthesis of gripping mechanisms used in the mechanization ofThis study distinguishes two kinds of planar gripping mechanisms mainly used in opening and closing theTwo planar and one spatial existing mechanisms are described.The last part of this paper presents a structural synthesis of such a spatial parallel mechanism by usingNine kinematic diagrams of spatial parallel mechanisms are provided.

Keywords： structural synthesis parallel mechanisms gripping mechanisms wood harvesting harvesting head

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

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:

The shield machine is a heavy construction machine for tunnel excavation, and the segment erector is an important subsystem of the shield machine. It is difficult to achieve precise control in the 6-DOF (degree of freedom) erector in the 2-DOF 5-bar radial mechanism. 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 has two degrees of freedom. On 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 the radial direction based on the mechanical structure, which has one degree of freedom. The redundant actuator also facilitates the equal application of two flexural torques at the hydraulic cylinders; thus, preventing the overload of a single cylinder.

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

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Active Control of Ocean Vehicle Multidimension Vibration and Motion

Chen Xiuxiang,Ma Lüzhong,Wu Weiguang,Zhu Wei

Strategic Study of CAE 2007, Volume 9, Issue 8, Pages 52-56

Abstract:

Active control multi-dimension vibration device based on parallel mechanisms

Keywords： electromagnetic actuator active control multi-dimension vibration parallel mechanisms

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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1, Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION SYSTEMS FOOD CONCEPTS MECHANISMS

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Structural optimization of typical rigid links in a parallel kinematic machine

Xinjun LIU, Zhidong LI, Xiang CHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 344-353 doi: 10.1007/s11465-011-0227-x

Abstract:

The motion dynamics and accuracy of parallel kinematic machines largely depend on the weights andwork employs the techniques of topology and size optimization to design two typical rigid links of a parallel

Keywords： topology optimization size optimization parallel kinematic machine (PKM)

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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: A redundantly actuated parallel manipulator (RAPM) with mixed translational and rotational degrees ofAs an example, this paper presents a spatial RAPM involving linkages and cam mechanisms.

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

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Reconfigurable mechanisms can deliberately reconfigure themselves by rearranging the connectivity ofMetamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichhave attracted increasing attention in the field of mechanisms since they were proposed.This paper presents an overview of recent developments in innovation design of reconfigurable mechanismsin China, including metamorphic and origami mechanisms and their typical applications.

Keywords： innovation design reconfigurable mechanisms metamorphic mechanisms origami-derived mechanisms development

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Variable identification and automatic tuning of the main module of a servo system of parallel mechanism

YANG Zhiyong, XU Meng, HUANG Tian, NI Yanbing

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 82-88 doi: 10.1007/s11465-007-0014-x

Abstract: The variables of the main module of a servo system for miniature reconfigurable parallel mechanism were

Keywords： acceleration reconfigurable parallel additive sequence parallel mechanism

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Cusp points and assembly changing motions in the PRR-PR-PRR planar parallel manipulator

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0743-x

Abstract: Most parallel manipulators have multiple solutions to the direct kinematic problem.study investigates the cusp points and assembly changing motions in a two degrees of freedom planar parallel

Keywords： planar parallel manipulator assembly changing motions cusp points quartic polynomial discriminant

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A rolling 3-UPU parallel mechanism

Zhihuai MIAO, Yan’an YAO, Xianwen KONG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 340-349 doi: 10.1007/s11465-013-0282-6

Abstract:

A novel rolling mechanism is proposed based on a 3-UPU parallel mechanism in this paper.

Keywords： parallel mechanism rolling mechanism screw theory

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Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 798-813 doi: 10.1007/s11465-021-0645-3

Abstract: in limited three-dimensional space is a typical nondeterministic polynomial hard problem, where the parallelThis paper presents an automatic multiple pipe routing method for aero-engine that focuses on parallelFurthermore, to eliminate the minor angle deviation of parallel pipes that would cause assembly stress

Keywords： multiple pipe routing optimization algorithm aero-engine pipe grouping parallel layout

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New kind of subarea-parallel scanning mode for laser metal deposition shaping

BIAN Hongyou, LIU Weijun, ZHAO Jibin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 417-422 doi: 10.1007/s11465-007-0071-1

Abstract: A new kind of subarea-parallel scanning mode for LMDS based on a subdividing profiled outline into monotonousSecond, the parallel scanning paths of all monotonous polygon subareas are finished, which diminishes

Keywords： scanning parallel scanning practical application fabrication efficiency LMDS

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Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2, Pages 120-129 doi: 10.1007/s11465-014-0300-3

Abstract:

In this paper, error modeling and analysis of a typical 3-degree of freedom translational Parallel X, Y and Z directions for a set of dimensions of the parallelAn attempt is made to find the optimal dimensions of the Parallel Kinematic Machine using Genetic Algorithmsmethodology presented and the results obtained are useful for predicting the performance capability of the Parallel

Keywords： translational Parallel Kinematic Machine error modeling global error transformation index