DESIGN CONSIDERATIONS FOR MAINTENANCE: FACILITY MANAGERS’ PERSPECTIVE

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Armin Jalali Sohi ◽  
David Arditi ◽  
Afshin Jalali Sohi
Keyword(s):  
Life Cycle ◽  
Construction Projects ◽  
Facility Management ◽  
Design Stage ◽  
Maintenance Cost ◽  
Design Phase ◽  
Maintenance Schedule ◽  
The Us ◽  
Design Deficiencies ◽  
The Cost

Maintainability is one of the considerations designers take into account in the design stage of building construction projects. In other words, maintainability is a design consideration that may improve ease of maintenance during operation. The designer is expected to include maintenance knowledge and experience into the design, including planning for specific tools to facilitate implementation. Maintainability issues appear during the occupancy stage and have a direct impact on the cost of owning and operating a facility. Annual operation and maintenance expenses during the life cycle of a building could amount to many times the initial construction cost. Design deficiencies constitute one of the main reasons for high annual maintenance cost. Facility management involves activities to maintain and operate a constructed facility. It is essential to evaluate facility managers’ perspective on how maintainability characteristics should be considered at design phase of facilities. A survey of 168 facility managers in the mid-west region of the US is uncovered that (1) maintainability should be top priority in design, especially for mechanical systems, (2) deferred maintenance should be avoided because it increases costs over the life-cycle of buildings, and (3) constructed facilities should be handed over with a maintenance schedule provided by the designer. Paying special attention to maintainability in the design phase is expected to help reducing the cost of operation.

Modeling the development of rail corrugation to schedule a more economical rail grinding

2019 ◽  
Vol 234 (4) ◽  
pp. 370-380 ◽  
Author(s):  
Hirofumi Tanaka ◽  
Masashi Miwa
Keyword(s):  
Surface Roughness ◽  
Growth Curves ◽  
Minimum Cost ◽  
Maintenance Cost ◽  
Rail Corrugation ◽  
Maintenance Schedule ◽  
Rail Grinding ◽  
Noise Vibration ◽  
Maintenance Schedules ◽  
The Cost

Rail corrugation should be managed appropriately, as it causes noise, vibration, and degradation of track components and materials. Generally, rail corrugation is managed with the removal of rail surface roughness by rail grinding. However, in many cases, rail corrugation will reoccur after the rail is ground, thereby making the management of the phenomenon difficult for railway operators. For the proper management of rail corrugation, it is necessary to understand the development of rail corrugation and model it mathematically. However, this effort has not been made in previous studies. This paper investigates an efficient method for scheduling a regular grinding maintenance to manage rail corrugation. Using regularly measured data about rail surface roughness on a commercial line, a mathematical model was developed to estimate the growth of rail corrugation. This model was utilized to estimate the effects of the remaining roughness after rail grinding on the maintenance cost and to optimize the maintenance schedule. First, it was confirmed that the development of rail surface roughness of rail corrugation can be expressed in three phases and can be modeled by fitting the functions of growth curves to measurements of rail surface roughness recorded over a long period. Next, the rail grinding strategy was examined by applying this model to realize both effective and economical strategies for the maintenance of rail corrugation. This study confirmed that maintenance costs can be reduced by rail grinding that removes almost all of rail corrugation. In the case of ballasted tracks, it has been found that the optimal grinding schedule can reduce the cost of rail grinding as well as the cost of tamping. These findings can be applied by railway operators tasked with managing maintenance schedules for railway lines at a minimum cost.

Life Cycle Cost Analysis for Substation

2014 ◽  
Vol 638-640 ◽  
pp. 2370-2376
Author(s):  
Yan Zheng ◽  
Di Su ◽  
Xu Wang ◽  
Yu Cai
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Maintenance Cost ◽  
Cost Estimating ◽  
Engineering Project ◽  
Construction Engineering ◽  
Engineering Project Management ◽  
The Cost ◽  
The Relationship ◽  
Cost Of Construction

Life Cycle Cost of Construction engineering project management is a combination of modern management theory—system theory, cybernetics and information theory combined with the construction project. In this paper, a model of substation life cycle cost is built comprehensively, by making a model for the cost estimating of substation design and construction cost. Meanwhile, the operation loss, operation maintenance cost are analyzed and calculated, the estimate of the retirement costs is carried on. On these basics, analyzes the relationship between the cost, then the numerical example is given ultimately. Eventually, optimal reliability and economical efficiency is achieved.

scholarly journals Methodology for estimating the resource of the friction vibration damper of a freight car trolley

2021 ◽  
Vol 2094 (5) ◽  
pp. 052064
Author(s):  
Oleg Cherepov ◽  
Aleksandr Antropov ◽  
Vitaliy Karmatskiy ◽  
Andrey Arkhipov ◽  
Vasiliy Lapshin
Keyword(s):  
Life Cycle ◽  
Turnaround Time ◽  
Technical Condition ◽  
Friction Model ◽  
Design Stage ◽  
Vibration Damper ◽  
Digital Twin ◽  
Scientific Substantiation ◽  
Freight Car ◽  
The Cost

Abstract The concept of digitalization of railway transport and the introduction of digital technologies provides for the creation of a “Digital Railway” based on a “Digital Twin”, including a “Digital Twin” of a car, which implements a number of information and organizational measures aimed at assessing the current technical condition of a real car during its operation; reducing the cost of the life cycle of the car; increasing the reliability of assemblies and parts (increasing the overhaul life); reduced maintenance costs; creation of a service maintenance system for freight cars throughout the life cycle. However, the wear of vibration damper parts is the most important parameter that determines the turnaround time, the volume of repairs and the dynamic qualities of the car, which requires more detailed and reliable scientific substantiation. The assessment of the wear of vibration damper parts (friction bar, friction wedge, bolster) is carried out in two ways - by direct examination of them in operation (in this case, wear is estimated by changing the linear dimensions, i.e., in mm over the service life) and according to the results of bench tests of models of vibration damper or testing samples on friction machines (in this case, wear is estimated by the mass of the worn-out material). The proposed method for predicting the wear of parts of frictional vibration dampers implements the Archard friction model, takes into account the variability of loads acting on the working surfaces, for which a method for determining the friction path under various driving conditions has been developed. The developed methodology makes it possible to evaluate their service interval at the design stage of the car’s running gears.

Optimizing Ship Machinery Maintenance Scheduling Through Risk Analysis and Life Cycle Cost Analysis

2006 ◽  
Author(s):  
Lahar Baliwangi ◽  
Kenji Ishida ◽  
Hidetoshi Arima ◽  
Ketut Buda Artana
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Risk Evaluation ◽  
System Modeling ◽  
Scheduling Algorithm ◽  
Maintenance Scheduling ◽  
Maintenance Cost ◽  
Penalty Cost ◽  
Maintenance Schedule ◽  
Optimal Maintenance

Ship maintenance scheduling management integrated with risk evaluation and Life Cycle Cost (LCC) assessment approach is developed in this research. It improves upon existing practices in arranging an optimal maintenance schedule by modeling operational and economical risks. This paper researches maintenance scheduling algorithm with explicitly consider risks associated with some operation problems such as operating schedule, routes, ship position, resources availability, and achievement of reliability-availability-maintainability (RAM) of system. Modeling of components RAM with their failures consequences results risk evaluation. Time value of maintenance cost, replacement cost, earning rate, and penalty cost are also simulated. When the system reaches the lowest level of lower limit reliability, one or more components should be maintained or replaced. Since maintenance task may interrupt the operation, to minimize time-to-maintain all possible events of maintaining other components at the same time will be evaluated together with resources availability. By researching those possibilities, constraining the risk, and based on LCC calculation result, an optimal maintenance scheduling can be then well established.

Contractual challenges for BIM-based construction projects: a systematic review

2018 ◽  
Vol 8 (4) ◽  
pp. 372-385 ◽  
Author(s):  
Ahmad Huzaimi Abd Jamil ◽  
Mohamad Syazli Fathi
Keyword(s):  
Life Cycle ◽  
Construction Projects ◽  
Facility Management ◽  
Information Modeling ◽  
Interaction Matrix ◽  
Content Type ◽  
Novel Approach ◽  
Project Life Cycle ◽  
Building Information ◽  
Project Life

Purpose Building information modeling (BIM) has been proven to enable outstanding results in construction processes by enhancing knowledge sharing with regard to a building or facility throughout its life cycle from the conceptual design to facility management. The purpose of this paper is to investigate the extent to which the use of BIM has impacted the legal and contractual implications of the existing construction contracts for aligning the three sets of relevant development domains: BIM functionality, contract procurement methods, and BIM legal and contractual issues to enhance the efficient use of valuable resources. Design/methodology/approach This exploratory study was undertaken by analyzing the literature using a novel approach involving a matrix that juxtaposes BIM functionalities for each project life cycle with contract procurement methods. As part of the study, 28 interactions of BIM legal and contractual issues have been identified, as representing positive and negative interactions. Findings The interaction matrix framework that juxtaposes BIM functionalities and procurement methods highlights the theoretical and practical relationships identified between the methods. It also simultaneously recognizes the constructive and destructive interactions between these development domains by means of critically identifying the possible interactions of the legal and contractual aspects of both the BIM project procurement and the practical aspects of BIM project delivery. Originality/value The present study contributes to the existing literature by extensively identifying the probable interactions of contractual issues within BIM functionality with contract procurement methods throughout the life cycle of a building construction project.

Ontology-Based Malfunction Forecast and Root Cause Analysis in Product Design

2012 ◽  
Author(s):  
Xiaomeng Chang ◽  
Janis Terpenny
Keyword(s):  
Life Cycle ◽  
Product Design ◽  
Product Life Cycle ◽  
Design Phase ◽  
Cause Analysis ◽  
Product Life ◽  
Design Improvement ◽  
Root Cause ◽  
Initial Design ◽  
The Cost

In product design, passing undetected errors to the downstream can cause error avalanche, could diminish product acceptance and largely increase the overall cost. Yet, it is difficult for designers to collect all the related potential errors from different departments in the initial design phase. In order to deal with these problems, this paper puts forward an ontology based method to integrate related history error data from different data sources of multiple departments in an enterprise. By using the advantages of ontologies and ontology-based information systems in knowledge management and semantic reasoning, the method enables the investigation of the root cause of the related potential malfunctions in the early product design phase. The framework can provide warnings and root causes of related potential errors in design based on history data and further continuously improve the product design. In this manner, this method is expected to reduce the knowledge limitation of designers in the initial design phase, help designers consider the problems in the whole enterprise and the product life cycle more completely, facilitate design improvement more accurately and efficiently, and further reduce the cost of the overall product life cycle.

scholarly journals The relation between the cost impact and mismanagement in the Middle East construction projects

2019 ◽  
Vol 28 (2) ◽  
pp. 203-211
Author(s):  
Forat Al.-Sahar
Keyword(s):  
Life Cycle ◽  
Middle East ◽  
Construction Projects ◽  
Negative Impact ◽  
Cost Impact ◽  
Project Life Cycle ◽  
Level Number ◽  
Performance Project ◽  
The Cost ◽  
Project Life

The creations of construction projects firstly try to achieve several specific goals. Effective projects are believed when these goals achieved. The principal concerns are to cross the downsides and defects. The stage of the performance project may be the most significant, crucial and drains of the resources through the project life cycle, its dependence on monitoring by professional in order to exceeded things blocking the path and accomplish the project plan exactly. The targets of the study are to diagnosis the actual reasons and locating the relation of mismanagement of the project execution stage and measure their influence on the cost. The study achieved and diagnoses many problems that have a negative impact on the projects management implementation as well as the effects of the cost by using many ways to reaching the target. There are 22 problems it is the main reasons that deviation the cost plus they obtain agreement level number according to Likert scale quintet.

Implementation of Life Cycle Costing: A Case of Hostel Building in Kediri, Eastern Jawa, Indonesia

2016 ◽  
Vol 845 ◽  
pp. 326-331 ◽  
Author(s):  
Peter F. Kaming ◽  
Juli Marliansyah
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Investment Project ◽  
Development Project ◽  
Design Stage ◽  
Life Cycle Cost Analysis ◽  
Building Life Cycle ◽  
The Cost ◽  
Building Project

Analysis of the life cycle cost of a design process that is important in controlling the initial costs and future costs in possession of an investment project. Therefore, there should be a life cycle cost analysis study to determine the cost of any category contained in the hostel building project in the area of Islamic Hospital jimbunmedika Kediri and also see how much the total cost incurred by a development project in the area of hospital hostel Islam jimbunmedika Kediri ranging from the design stage to the technical life of hostels set .The purpose of this study is, identify the service life of the building material components hostels on Hospital Grounds JimbunMedika Kediri, and make long-term plans of the building life cycle cost hostels in the area Jimbun Medika Kediri Hospital. From the results of the research, there are three groups that make up the life cycle cost is the cost of building, operating costs, and the cost of maintenance and replacement. For a long-term plan the life cycle cost of the costs and the percentage obtained as follows, development cost Rp.4.290.000.000 (46%), operational costs Rp. 3.799.333.250 (28%), maintenance and replacement costs Rp. 2.590.900.000 (26%).

scholarly journals Early Contractor and Facility Management Team Involvement in the BIM Environment

2018 ◽  
Vol 49 (1) ◽  
pp. 47-58 ◽  
Author(s):  
Hao Wang ◽  
Xianhai Meng ◽  
Patrick J. McGetrick
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Research Direction ◽  
Structured Interview ◽  
Facility Management ◽  
Design Stage ◽  
Parametric Modelling ◽  
Cycle Simulation ◽  
Building Information ◽  
New Research

Knowledge is the resource that contributes the most to an organisation’s competitiveness. Construction projects usually introduce project teams from different disciplines. Hence, knowledge in projects is complex and difficult to manage. To efficiently manage knowledge in projects, various strategies and tools have been applied over the years to support knowledge management (KM). Building information modelling (BIM) is a technology that has recently gained a lot of attention in the construction industry. The main feature of BIM is object-oriented and parametric modelling with the functions of dynamic visualisation, life cycle simulation, early analysis, coordination and collaborative working. Many studies have explored the functions of BIM mainly at the information level. However, only a few studies have considered the management of knowledge in a BIM environment. To fill this knowledge gap, this study explored the potential and expectation of a BIM-based system for early collaboration among contractor, facility management (FM) and design teams in the design stage. This study chose semi-structured interview as the main method to collect qualitative information. A total of 30 experts working in the construction industry were interviewed. On the basis of the analysis results of the collected information, a discussion was presented on how BIM can facilitate KM activities and relieve KM challenges. Therefore, the discussion focused on the requirements and expectations of the integrated KM system in a BIM environment that can facilitate the early involvement of construction contractors and the FM team into the design stage. This study also provides a new research direction for the transformation of research focus from BIM to building knowledge modelling. This paper is the revised version of the paper that has been published in the proceedings of the Creative Construction Conference 2018 (Wang et al., 2018).

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