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Article
Publication date: 9 October 2018

Fuhai Zhang, Jiadi Qu, He Liu and Yili Fu

This paper aims to develop a pose/force coordination method for a redundant dual-arm robot to achieve a symmetric coordination task.

Abstract

Purpose

This paper aims to develop a pose/force coordination method for a redundant dual-arm robot to achieve a symmetric coordination task.

Design/methodology/approach

A novel control strategy of dual-arm coordination is proposed that associates pose coordination with force coordination. The spatial in-parallel spring and damping model is built to regulate the relative pose error of two end-effectors in real time, and force coordination factor is introduced to realize the dynamic distribution of loadings to limit the object’s internal force in real time.

Findings

The proposed method was verified on a real dual-arm robot platform. The symmetric coordination task is performed and the experiment results show that a good behavior on the regulation of the relative pose errors between two arms to achieve the object’s trajectory tracking, and the distribution of the two end-effectors’ loadings to limit the object’s internal force.

Originality/value

The benefits of the proposed method are to improve the object’s tracking performance and avoid the object damage during the symmetric coordination task.

Details

Assembly Automation, vol. 38 no. 5
Type: Research Article
ISSN: 0144-5154

Keywords

Article
Publication date: 14 April 2020

Yu Yan, Wei Jiang, Dehua Zou, Wusheng Quan, Hong Jun Li, YunFei Lei and Zhan fan Zhou

In the long-term network operation, the power distribution network will be subjected to the effects of ultra-high voltage, strong electromagnetic interference and harsh natural…

Abstract

Purpose

In the long-term network operation, the power distribution network will be subjected to the effects of ultra-high voltage, strong electromagnetic interference and harsh natural environment on the power system, which will lead to the occurrence of different faults in the distribution network and directly affect the normal operation of the power grid.

Design/methodology/approach

The purpose of this study is to solve the problems of labor intensity, high risk and low efficiency of distribution network manual maintenance operation, this paper proposed a new configuration of the live working robot for distribution network maintenance, the robot is equipped with dual working arms through the mobile platform, which can realize the coordination movement, the autonomous reorganization and replacement of the end tools, respectively, so as the robot power distribution maintenance function such as stripping, trimming, wiring and the operation control problem of the distribution network-robot with small arms and in small operation space can be realized.

Findings

To effective elimination or reduce the adverse effects of the internal forces in the closed chain between the working object and manipulator under the typical task of the 10 kV distribution network, this paper has established the robot coordinated control dynamics model in the closed-chain between the dual-working object and proposed the dynamic distribution method of closed-chain internal force and the effectiveness has been proved by simulation experiments and 10 kV field operation.

Originality/value

The force-position hybrid control can realize the mutual compensation of force and position so as to effectively reduce the internal force in the closed chain. Finally, the engineering practicality of the method is verified by field operation experiment, the effective implementation of this control method greatly improves the robot working efficiency and the operation reliability, the promotion and application of the control method have great theoretical and practical value and maintenance management system, so as to achieve automation of electric.

Details

Industrial Robot: the international journal of robotics research and application, vol. 47 no. 3
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 2 November 2010

Franklin G. Mixon and Len J. Treviño

The purpose of this paper is to suggest that the modern economic theory of bureaucracy developed by economists Breton and Wintrobe is a heretofore unrecognized precursor to the…

1572

Abstract

Purpose

The purpose of this paper is to suggest that the modern economic theory of bureaucracy developed by economists Breton and Wintrobe is a heretofore unrecognized precursor to the new public management (NPM) construct.

Design/methodology/approach

After presenting a comparison of the modern economic theory of bureaucracy to the basic principles of NPM, this paper offers a treatment of Breton and Wintrobe's modern economic theory of bureaucracy that uses the compelling episodic example of the 1944 attempt by the Nazi SS to deceive, through the now infamous Theresienstadt “Embellishment,” the International Red Cross and world communities about the existence of the Nazi Holocaust bureaucracy.

Findings

The comparison of the conceptual elements of the two models and the integration of the historical episodic example support the view that the modern economic theory of bureaucracy is a precursor to NPM.

Originality/value

This is the first study to date to present the modern economic theory of bureaucracy as a precursor to the principles of NPM. As such, future research in either area that recognizes the connection made in the present study is potentially enhanced.

Details

Humanomics, vol. 26 no. 4
Type: Research Article
ISSN: 0828-8666

Keywords

Article
Publication date: 1 January 1999

Simone White

The Commission's responsibility towards the EC budget led it to create an investigation unit within its Secretariat‐General: UCLAF (or Unité de Coordination de la Lutte…

Abstract

The Commission's responsibility towards the EC budget led it to create an investigation unit within its Secretariat‐General: UCLAF (or Unité de Coordination de la Lutte Anti‐Fraude). A potted history of UCLAF is offered, followed by an account of its ongoing transformation into a Task Force for the Coordination of the Fight against Fraud, and a discussion on its proposed rules, including the prospect for an ‘internal’ investigation squad. The paper concludes with a discussion of some issues raised by UCLAF's increasing powers: independence, lifting of immunities and the possibility of an inter‐institutional role.

Details

Journal of Financial Crime, vol. 6 no. 3
Type: Research Article
ISSN: 1359-0790

Abstract

Details

Explaining Growth in the Middle East
Type: Book
ISBN: 978-0-44452-240-5

Article
Publication date: 1 April 1998

Ning Xi and Tzyh‐Jong Tarn

In this paper, a new cooperation control scheme for multiple robot material handling is presented. First, the event‐based planning and control method is introduced, which lays…

407

Abstract

In this paper, a new cooperation control scheme for multiple robot material handling is presented. First, the event‐based planning and control method is introduced, which lays down the foundation for sensor‐referenced cooperation of multiple robot systems. The key step is the development of event‐based action reference. Based on the real‐time sensory information, the event‐based action reference drives the system to achieve the best possible coordination. The event‐based cooperation control scheme can easily be implemented in a distributed computer system. A real‐time control and computing architecture is proposed to implement this scheme in a parallel computation. The new multiple robot cooperation scheme has been experimentally implemented and tested on two 6‐DOF PUMA 560 robots. The experimental results have demonstrated the advantages of the scheme.

Details

Industrial Robot: An International Journal, vol. 25 no. 2
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 8 March 2011

Jun Zhou and Yueqing Yu

The purpose of this paper is to present a novel and accurate coordination control method of dual‐arm modular robot based on position feedback using 3D motion measurement system …

Abstract

Purpose

The purpose of this paper is to present a novel and accurate coordination control method of dual‐arm modular robot based on position feedback using 3D motion measurement system – Optotrak3020. The end‐position accuracy of dual‐arm modular robot can be improved obviously.

Design/methodology/approach

By means of Optotrak3020, the actual end‐position of dual‐arm modular robot is acquired and then returned to the robotic controllers, so the corresponding position error compensation is implemented. Through a 3D simulation and experiment of dual‐arm modular robot for tracking a trajectory of plane right triangle, the feasibility and validity of this control strategy are verified.

Findings

The coordination control of dual‐arm modular robot based on position feedback can be accomplished by means of Optotrak3020. The dual‐arm modular robot can accurately accomplish the task of positioning or tracking a reference trajectory.

Practical implications

This real‐time position feedback control method with high control accuracy can be implemented on a PowerCube dual‐arm modular robot system. This method also can be applied to other dual‐arm robot systems, such as mobile robot with dual‐arm, humanoid robot.

Originality/value

The coordination control method of dual‐arm modular robot is presented based on end‐position feedback using Optotrak3020 motion measurement system. The platforms of simulation, communication and experiment are developed, respectively.

Details

Industrial Robot: An International Journal, vol. 38 no. 2
Type: Research Article
ISSN: 0143-991X

Keywords

Expert briefing
Publication date: 25 April 2016

Russia's diversified military capacity in Syria.

Details

DOI: 10.1108/OXAN-DB210733

ISSN: 2633-304X

Keywords

Geographic
Topical
Book part
Publication date: 23 December 2005

Catherine Thomas, Renata Kaminska-Labbé and Bill McKelvey

Research on multinational corporations (MNCs) shows that they have tried various structural solutions to solve the dilemma of trying to “balance” global control and efficiency…

Abstract

Research on multinational corporations (MNCs) shows that they have tried various structural solutions to solve the dilemma of trying to “balance” global control and efficiency with local country-specific sensitivity, autonomy, and innovation, with the Transnational form preferred. Failings of the strategy-structure sequence lend credence to the emerging strategy-process perspective. To date, the best lesson for MNC strategy-process concerns pertaining to the global vs. country dilemma comes from March's classic paper on “balancing” exploitation vs. exploration. 21st century MNCs exist in a more rapidly changing world, however, where static “balance” solutions may be insufficient. The tradition of “circular organizing” is one alternative to the failing “balance” solution; it offers a dynamic strategy-process approach to MNC management. Another is Dupuy's concept of “tangled hierarchies” where top-down and bottom-up influence forces are interwoven such that global exploitation or country-specific exploration dominates in timely fashion. It calls for clearly defined control and autonomy regimes, with space given for emergent rules governing the rotation rate. Key questions are: What is the optimal rate at which they should rotate supremacy, and how to get this to happen and persist? Since normal quantitative methods can’t track complex, nonlinear, emergent phenomena, an in-depth longitudinal case analysis was conducted of a global MNC in the cosmetics industry, as it progressed through its early years of formation. Our case covers twelve years, during which the MNC goes through several kinds of tangled hierarchies. The dynamics in our case are rich enough to illustrate many aspects of the “tangled hierarchy” approach, while also offering new clues about oscillation rates. A number of implications for managers are discussed. Principal among these is the “edge of chaos” idea, in which managers have to avoid too-fast or too-slow oscillation rates. Very fast rates can degenerate into chaos and then collapse into the exploitation or exploration “traps.” Firms also fall into the traps simply because managers don’t understand or can’t tolerate the idea of oscillation dynamics.

Details

Strategy Process
Type: Book
ISBN: 978-1-84950-340-2

Article
Publication date: 16 August 2021

Sanjana Mondal and Kaushik Samaddar

The paper aims to explore the various dimensions of human factor relevant for integrating data-driven supply chain quality management practices (DDSCQMPs) with organizational…

Abstract

Purpose

The paper aims to explore the various dimensions of human factor relevant for integrating data-driven supply chain quality management practices (DDSCQMPs) with organizational performance. Keeping the transition phase from “Industry 4.0” to “Industry 5.0” in mind, the paper reinforces the role of the human factor and critically discusses the issues and challenges in the present organizational setup.

Design/methodology/approach

Following the grounded theory approach, the study arranged in-depth interviews and focus group sessions with industry experts from various service-oriented firms in India. Dimensions of human factor identified from there were grouped together through a morphological analysis (MA), and interlinkages between them were explored through a cross-consistency matrix.

Findings

This research work identified 20 critical dimensions of human factor and have grouped them under five important categories, namely, cohesive force, motivating force, regulating force, supporting force and functional force that drive quality performance in the supply chain domain.

Originality/value

In line with the requirements of the present “Industry 4.0” and the forthcoming “Industry 5.0”, where the need to collaborate human factor with smart system gets priority, the paper made a novel attempt in presenting the critical human factors and categorizing them under important driving forces. The research also contributed in linking DDSCQMPs with organizational performance. The proposed framework can guide the future researchers in expanding the theoretical constructs through initiating further cross-cultural studies across industries.

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