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Article
Publication date: 1 May 1989

Richard Beaurepaire

It is argued that one of the keys to successful management is theharvesting of change. The implications of change on Australianorganisations in the 1990s, a period which the…

110

Abstract

It is argued that one of the keys to successful management is the harvesting of change. The implications of change on Australian organisations in the 1990s, a period which the author believes will be one of flat growth, are presented.

Details

International Journal of Physical Distribution & Materials Management, vol. 19 no. 5
Type: Research Article
ISSN: 0269-8218

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Article
Publication date: 10 February 2020

Dongping Zhao, Gangfeng Wang, Jizhuang Hui, Wei Hou and Richard David Evans

The assembly quality of complex products is pivotal to their lifecycle performance. Assembly precision analysis (APA) is an effective method used to check the feasibility and…

244

Abstract

Purpose

The assembly quality of complex products is pivotal to their lifecycle performance. Assembly precision analysis (APA) is an effective method used to check the feasibility and quality of assembly. However, there is still a need for a systematic approach to be developed for APA of kinematic mechanisms. To achieve more accurate analysis of kinematic assembly, this paper aims to propose a precision analysis method based on equivalence of the deviation source.

Design/methodology/approach

A unified deviation vector representation model is adopted by considering dimension deviation, geometric deviation, joint clearance and assembly deformation. Then, vector loops and vector equations are constructed, according to joint type and deviation propagation path. A combined method, using deviation accumulation and sensitivity modeling, is applied to solve the kinematic APA of complex products.

Findings

When using the presented method, geometric form deviation, joint clearance and assembly deformation are considered selectively during tolerance modeling. In particular, the proposed virtual link model and its orientation angle are developed to determine joint deviation. Finally, vector loops and vector equations are modeled to express deviation accumulation.

Originality/value

The proposed method provides a new means for the APA of complex products, considering joint clearance and assembly deformation while improving the accuracy of APA, as much as possible.

Details

Assembly Automation, vol. 40 no. 3
Type: Research Article
ISSN: 0144-5154

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