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Article

Haiquan Yu, Gaoliang Peng and Wenjian Liu

As an important product characteristic, maintainability is recognized as a highly significant factor in the economic success of engineering systems and products. Based on…

Abstract

Purpose

As an important product characteristic, maintainability is recognized as a highly significant factor in the economic success of engineering systems and products. Based on virtual reality technology, this paper aims to create an intuitive, immersive and interactive environment for product maintenance. In order to analyze and evaluate the product maintainability in a virtual maintenance environment, fuzzy comprehensive evaluation is used. At the early design stage, maintainability influencing factors are analyzed and the whole maintainability evaluation of the product is given by using fuzzy comprehensive evaluation method in virtual maintenance environment.

Design/methodology/approach

The paper provides a fuzzy comprehensive evaluation method for product maintainability evaluation in virtual environment.

Findings

Fuzzy comprehensive evaluation is used to evaluate product maintainability in virtual environment, and the application of virtual maintainability system is expanded.

Originality/value

According to maintainability requirement, the maintainability index set is built in this paper, and fuzzy comprehensive evaluation method is used to evaluate product maintainability in virtual maintenance environment at stage of early design.

Details

Assembly Automation, vol. 31 no. 1
Type: Research Article
ISSN: 0144-5154

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Article

Hong‐fa Ke, Hong‐Mei Du, Ke He and Xiao‐Hong Yu

The purpose of this paper is to solve the comprehensive evaluation of the equipment maintainability level based on grey system theory, and make an analysis of the…

Abstract

Purpose

The purpose of this paper is to solve the comprehensive evaluation of the equipment maintainability level based on grey system theory, and make an analysis of the corresponding influencing factors and their prioritization process.

Design/methodology/approach

Considering the diversity, uncertainty and small sample size of the influencing factors of the equipment maintainability level, a multilayer evaluation attribute system is set up, and the grey relational method is utilized to assess the equipment's comprehensive maintainability. First, the bottom layer relational coefficient and weighted relational degree are analyzed, and, by means of the focus of relational degree through the bottom layer to top layer, the general evaluation of the equipment maintainability is carried out. Second, the equipment maintainability level and its influencing factors model, i.e. GM(1,N) model are set up, and the prioritization of the influencing factors is achieved through the comparison of the size of the model drive coefficients. Finally, the practical example calculation results show that this method has not only realized a sensible and effective evaluation of the equipment maintainability level, but also provided a prioritization of the influencing factors, which helps to focus attention on the major influencing factors and make this method of significant engineering application value in the improvement of the equipment maintainability level.

Findings

The modeling of electronic equipment maintainability level and analysis of its corresponding practical example prove that grey system theory could not only perform a comprehensive evaluation of the equipment maintainability level, but also provide a quantitative analysis of its various influencing factors, whereas, other methods such as fuzzy mathematics, etc. can only make a general evaluation of the equipment maintainability level.

Practical implications

This paper has realized an integral evaluation of the equipment maintainability level and has made an analysis of the prioritization of its various influencing factors. These investigation results could be introduced as a promising innovative idea in the evaluation of the equipments' other performances and the prioritization of its various corresponding influencing factors.

Originality/value

Considering the diversity and uncertainty of influencing factors of the equipment maintainability level, this paper has realized a multilayer evaluation attribute system to perform a comprehensive evaluation of equipment maintainability level by means of weighted grey relational degree model. Furthermore, the prioritization of its various influencing factors is achieved based on the GM(1,N) model.

Details

Grey Systems: Theory and Application, vol. 2 no. 3
Type: Research Article
ISSN: 2043-9377

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Article

M.Y.L. Chew, Sheila Conejos and Ashan Senel Asmone

The aim of this paper is to present a research framework for the green maintainability of buildings. This study makes the case for the development of a new concept called…

Abstract

Purpose

The aim of this paper is to present a research framework for the green maintainability of buildings. This study makes the case for the development of a new concept called “green maintainability”. The paper also identifies and discusses the knowledge gap concerning green facilities management (FM). As an integral part of green FM, the economic, environmental and social impacts and opportunities of green maintainability throughout the total life cycle of the facility are also highlighted.

Design/methodology/approach

The little attention paid to the maintainability of green buildings has resulted in losses of lives due to occupational health and safety hazards as well as high operation and maintenance costs. To address this issue, this study has conducted a literature review to determine the relevant background knowledge and provides a conceptual framework that will aid in conceptualizing the green maintainability of buildings and the development of a research framework for the furtherance of this concept.

Findings

This paper finds that there is little research on the maintainability of green buildings, and the studies about the maintainability of green features are nonexistent in current research. This study confirms the knowledge gap of this little-researched area and draws from it the formulation of a research framework for the green maintainability of buildings to ensure green FM. Emerging literature on green practices and methods is currently receiving attention from academia, as well as building and construction practitioners, and can valuably contribute to the existing theories, practices and methods concerning building maintainability and facilities management.

Originality/value

This study develops the novel concept of green maintainability, which integrates maintainability and green FM at the planning/design stage. The proposed research framework is the first attempt to investigate the green maintainability of different typologies of buildings and especially green building technologies.

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Article

Nayanthara de Silva and Malik Ranasinghe

With increased architectural, design and functional requirements and complexities, maintaining a modern building can easily become a costly affair. There is much evidence…

Abstract

Purpose

With increased architectural, design and functional requirements and complexities, maintaining a modern building can easily become a costly affair. There is much evidence in the literature review as well as from the factual data, showing the significant increase of the maintenance budget in the recent past. This is due to the fact that, these complexities eventually generate many deficiencies and difficulties and, in turn, creates a tremendous maintenance workload and an undue budget. Therefore, the purpose of this paper is to discuss factors related to such issues in the form of risks involved in the maintainability of buildings and further, explore several strategies and industry actions at the industry level to resolve this burning problem. This paper is focused to address the condominium properties.

Design/methodology/approach

This approach of investigation of the risk factors was based on exploring the causes of existing defects and problems, which tend to lower the maintainability. Existing literature, site observations/interviews and questionnaire surveys were used to gather the required data.

Findings

There are 13 number of critical maintainability problems, 43 respective factors as “maintainability risk” factors and 12 subsequent industry actions for better maintainability, in the findings. In addition, nine maintainability strategies are explored based on the relevant risk conditions to enhance the maintainability at the organizational/project level and three industry motivators are extracted from the relevant industry actions. A simplified framework for maintainability is proposed based on the strategies and the industry actions.

Research limitations/implications

The data collection has to be limited to the Colombo metropolitan region due to limited resources.

Originality/value

The paper provides useful information to the designers, clients, facilities managers/maintenance managers and users, on maintainability issues related to condominiums. This information highlights the important risk conditions, strategies and industry motivators in order to minimize these problems. These findings may provide an opportunity to promote “highly maintainable buildings for the future”.

Details

Journal of Financial Management of Property and Construction, vol. 15 no. 1
Type: Research Article
ISSN: 1366-4387

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Article

Nayanthara De Silva and Malik Ranasinghe

The research into the issue of maintainability of multi‐storey buildings in Sri Lanka is still in its adolescent stage. One of the critical building elements that requires…

Abstract

Purpose

The research into the issue of maintainability of multi‐storey buildings in Sri Lanka is still in its adolescent stage. One of the critical building elements that requires immediate attention for maintainability is reinforced concrete flat roofs. They are often subjected to alternate drying and wetting cycles under tropical conditions, causing many defects and subsequent deterioration when proper detailing related to design, construction and maintenance actions are lacking. Therefore, the aim of this paper is focused on identifying problems and risks and proposing a model to enhance the maintainability of flat roofs.

Design/methodology/approach

The existing maintainability problems were collected from 50 multi‐storey buildings. The inherent risks of flat roofs' maintainability were identified and analyzed through their problem‐causing factors. A scoring system using artificial neural networks is developed to forecast the level of maintainability.

Findings

The paper found 721 maintainability problems of flat roofs and a further 12 maintainability risk conditions related to the flat roofs were elicited. The model showed the level of maintainability of a typical flat roof shown is only 51 percent. The risk factors are also prioritized to give guidance.

Originality/value

The paper provides useful information to the designers and users on maintainability problems related to flat roofs. Also it highlights important risk conditions in order to minimize these problems.

Details

Structural Survey, vol. 28 no. 4
Type: Research Article
ISSN: 0263-080X

Keywords

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Article

Zhou Dong, Kang Le and Lv Chuan

Maintainability is a critical design characteristic that shows how well a product can be maintained; maintenance time is a comprehensive parameter of product…

Abstract

Purpose

Maintainability is a critical design characteristic that shows how well a product can be maintained; maintenance time is a comprehensive parameter of product maintainability design. This paper aims to provide an integrated methodology for complex product maintainability verification and maintenance time prediction using virtual prototypes and humans in a virtual dynamic simulation of the maintenance process.

Design/methodology/approach

An integrated platform for maintainability verification and maintenance time prediction is designed. Decomposition of maintenance tasks, corrective measurement time method, and an impact matrix of maintenance therbligs and time are presented.

Findings

The proposed methodology can efficiently conduct complex product maintainability verification and maintenance time prediction.

Practical implications

Early and effective verification and prediction of the maintainability and maintenance time program can significantly improve the maintainability and availability of a complex product.

Originality/value

A universally applicable method for product maintainability verification and maintenance time prediction is presented.

Details

Assembly Automation, vol. 33 no. 3
Type: Research Article
ISSN: 0144-5154

Keywords

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Article

Peng Gaoliang, Haiquin Yu, Liu Xinhua, Jiang Yang and Xu He

Maintainability is the ability of a product system to be maintained and is a design characteristic. The paper aims to provide an integrated system for complex product…

Abstract

Purpose

Maintainability is the ability of a product system to be maintained and is a design characteristic. The paper aims to provide an integrated system for complex product maintainability design and verification. It includes processes and tools that can be effectively used to plan, quantify and cost maintenance.

Design/methodology/approach

An integrated platform for maintainability design and verification is designed. A case‐based reasoning method of maintainability design and Extensible Markup Language‐based representation of maintenance procedure information are presented.

Findings

The paper finds that the proposed system is an efficient tool for complex product maintainability design and verification.

Practical implications

Early and effective planning and implementation of a maintainability program can significantly improve the reliability and availability of product system.

Originality/value

A desktop virtual reality application for product maintainability design and verification is presented.

Details

Assembly Automation, vol. 30 no. 4
Type: Research Article
ISSN: 0144-5154

Keywords

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Article

Sheila Conejos, Michael Yit Lin Chew and Fikril Hakim Bin Azril

Vertical greenery systems (VGS) have been a widely accepted design strategy that contributes to creating sustainable built environments. However, green building…

Abstract

Purpose

Vertical greenery systems (VGS) have been a widely accepted design strategy that contributes to creating sustainable built environments. However, green building technologies (e.g. VGS) have grown in complexity which poses maintainability challenges. Designing with maintainability in mind is crucial in delivering efficient and sustainable buildings. This paper aims to assist designers and allied professionals in terms of integrating maintainability and sustainable design in developing high-rise VGS directly from its design inception.

Design/methodology/approach

The study is grounded on the “Green Maintainability” concept which link maintainability, sustainability and facility management right at the outset. The Green Maintainability factors are translated into critical design criteria which are used to analyze the selected instrumental case studies to evaluate the high-rise VGS performance and maintainability potential. A qualitative approach via the triangulation of data collected from relevant literatures, field surveys and walkthrough interviews is undertaken.

Findings

Findings have shown that the major VGS defects which are mostly occurring in the case studies are issues concerning fallen leaves and dirt accumulation; safety issues during cleaning and repairs; insufficient maintenance access; algae/ mould growth; withering plants; water stagnation/ ponding; poor/faulty irrigation and water dripping and unavailability of natural elements. Best practices and lessons learned revealed few design oversight and technical issues concerning high-rise VGS façade implementation. While maintenance cost, biodiversity and lack of coordination among involved professionals are the additional issues which emerged during the stakeholders’ walkthrough interviews.

Originality/value

Current researches conducted on the maintainability of green building technologies (e.g. high-rise VGS) are still few. This research study is the first comprehensive assessment to determine the green maintainability potential and performance of high-rise VGS in tropical conditions.

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Article

Michael Y.L. Chew and Sheila Conejos

The use of green wall technology in green buildings is a growing trend; however, more research is required about their maintainability, taking into account that…

Abstract

Purpose

The use of green wall technology in green buildings is a growing trend; however, more research is required about their maintainability, taking into account that maintainability at the design stage is a valuable strategy in achieving building efficiency and sustainability. Thus, the purpose of this paper is to determine the issues in operating and maintaining green walls, particularly in tropical areas like Singapore, leading to the development of a green maintainability framework.

Design/methodology/approach

This research uses a qualitative method that combines a thorough and systematic literature review, multiple case studies, field observation surveys and selected instrumental case studies with building plan appraisal and interviews to investigate the potential issues associated with the maintainability of green walls in tropical areas like Singapore.

Findings

The findings show that technical and environmental issues/defects are prevalent in the operation and maintainability of green wall technologies applied in green buildings located in tropical regions. Proper considerations of these findings will encourage green building designers and facilities managers to collaborate in the effective implementation of operations and maintenance of green building technologies.

Originality/value

This research gives new and significant information while identifying a clear knowledge gap. The paper recommends the formulation of a green maintainability framework with a set of design criteria that will serve as a benchmark in the future design of green walls. The green maintainability framework would be a valuable addition to green facilities management in ensuring the long-term maintainability and sustainability of existing and new green walls in tropical areas specifically in Singapore.

Details

Structural Survey, vol. 34 no. 4/5
Type: Research Article
ISSN: 0263-080X

Keywords

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Article

Christian N. Madu

This paper aims to examine the strategic value of reliability and maintainability management in achieving competitiveness and customer satisfaction. It looks into…

Abstract

Purpose

This paper aims to examine the strategic value of reliability and maintainability management in achieving competitiveness and customer satisfaction. It looks into performance metrics for organizational performance and associates reliability and maintainability with such metrics.

Design/methodology/approach

The design strategy is based on using models for reliability and profitability assessment as well as total quality management models to illustrate how performance metrics for organizational performance can be enhanced.

Findings

It shows there is a need to associate models of profitability assessment to reliability and maintainability management. This will help top management to see the strategic value of reliability and maintainability management and, therefore, adopt necessary organizational transformations to support reliability and maintainability goals.

Research limitations/implications

It is important that the role of reliability and maintainability as important strategic variables be recognized and considered in future research that evaluates organizational performance and successes.

Practical implications

The importance of organizational cultural transformation is noted and a transformation of organizational information system to link reliability management to a central information system such as in an enterprise resource planning (ERP) framework is suggested as a process of improving system availability and reliability.

Originality/value

The aim is to have top management perceive reliability and maintainability issues as part of their strategic initiatives. While the value of total quality management in achieving organizational success is well accepted, reliability and maintainability issues are often viewed at the operational level. Yet, they are critical to achieving quality and organizational success.

Details

International Journal of Quality & Reliability Management, vol. 22 no. 3
Type: Research Article
ISSN: 0265-671X

Keywords

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