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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 of

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

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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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augmented intelligence: mechanisms and applications of cognition, management, and control for complex systems Research Article

Fei-Yue WANG, Jianbo GUO, Guangquan BU, Jun Jason ZHANG,jun.zhang.ee@whu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 8, Pages 1142-1157 doi: 10.1631/FITEE.2100418

Abstract: In this paper, we aim to illustrate the concept of mutually trustworthy (HM-KA) as the technical mechanism of hybrid augmented intelligence (HAI) based complex system cognition, management, and control (CMC). We describe the historical development of complex system science and analyze the limitations of human intelligence and machine intelligence. The need for using human-machine HAI in is then explained in detail. The concept of “mutually trustworthy HM-KA” mechanism is proposed to tackle the CMC challenge, and its technical procedure and pathway are demonstrated using an example of corrective control in . It is expected that the proposed mutually trustworthy HM-KA concept can provide a novel and canonical mechanism and benefit real-world practices of complex system CMC.

Keywords： Complex systems Human-machine knowledge automation Parallel systems Bulk power grid dispatch Artificialintelligence

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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

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Elevated temperature creep model of parallel wire strands

Frontiers of Structural and Civil Engineering Pages 1060-1071 doi: 10.1007/s11709-023-0981-y

Abstract: Parallel wire strands (PWSs), which are widely used in prestressed steel structures, are typically in

Keywords： parallel wire strands experimental study elevated temperature creep model

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A comprehensive analysis of a 3-P (Pa) S spatial parallel manipulator

Yuzhe LIU,Liping WANG,Jun WU,Jinsong WANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 7-19 doi: 10.1007/s11465-015-0324-3

Abstract:

In this paper, a novel 3-degree of freedom (3-DOF) spatial parallel kinematic machine (PKM) is analyzed

Keywords： parallel mechanism concomitant motions kinematics workspaces error model

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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.translations and two rotations plus an additional grasping motion) gripper mechanisms based on the generalized parallel

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

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Dynamic modeling of flexible-links planar parallel robots

DU Zhaocai, YU Yueqing, ZHANG Xuping, DU Zhaocai

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 232-237 doi: 10.1007/s11465-008-0032-3

Abstract: This paper presents a finite element-based method for dynamic modeling of parallel robots with flexible(KED) theory and Lagrange formula are used to derive the dynamic equations of planar flexible-links parallelThe dynamic behavior of the flexible-links planar parallel robot is well illustrated through numericalsimulation of a planar 3-RR parallel robot.have a significant impact on the position error and orientation error of the flexible-links planar parallel

Keywords： 3-RR parallel KED coupling software SAMCEF orientation

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Linear quadratic optimal controller for cable-driven parallel robots

Saeed ABDOLSHAH,Erfan SHOJAEI BARJUEI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4, Pages 344-351 doi: 10.1007/s11465-015-0364-8

Abstract:

In recent years, various cable-driven parallel robots have been investigated for their advantages,such as low structural weight, high acceleration, and large workspace, over serial and conventional parallelsystems.Thus, the application of such an optimal controller in cable-driven parallel robots can result in moreThis paper presents an approach to apply the LQ optimal controller on cable-driven parallel robots.

Keywords： accuracy cable-driven parallel robot linear quadratic optimal control

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Singularity loci of an orthogonal spherical two-degree-of-freedom parallel mechanism

Jialun YANG, Feng GAO,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4, Pages 379-385 doi: 10.1007/s11465-009-0075-0

Abstract: Singularity analysis plays an important role in the design of robots, especially for parallel robots.In this paper, the direct and inverse kinematics of an orthogonal spherical two-degree-of-freedom parallelSelf-motions, which are different from the general spherical 5 parallel mechanisms, are also discussed

Keywords： 2-DOF orthogonal spherical parallel mechanism singularity loci self-motions