Simplified seismic life cycle cost estimation of a steel jacket offshore platform structure

Abstract This paper approaches environmentally conscious design by further developing a reliability model that facilitates design for reuse. Many reliability models are not suitable for describing systems that undergo repairs performed during remanufacture and maintenance because the models do not allow the possibility of system reconfiguration. In this paper, expressions of reliability indices of a model that allows system reconfiguration are developed to enable life-cycle cost estimation for repairable systems. These reliability indices of a population of repairable systems are proven theoretically to reach steady state. The expressions of these indices at steady state are obtained to gain insight into the model behavior, and to facilitate life-cycle cost estimation.

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A Study of Life Cycle Costing in the Perspectives of Research and Commercial Applications in the 21st Century

Volume 4: ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications and the 19th Reliability, Stress Analysis, and Failure Prevention Conference ◽

10.1115/detc2007-34425 ◽

2007 ◽

Cited By ~ 5

Author(s):

Wai M. Cheung ◽

Linda B. Newnes ◽

Antony R. Mileham ◽

Robert Marsh ◽

John D. Lanham

Keyword(s):

Life Cycle ◽

Cost Estimation ◽

Life Cycle Cost ◽

Academic Research ◽

Life Cycle Costing ◽

Electronic Products ◽

Commercial Applications ◽

The Uk ◽

The Cost ◽

Traditional Approaches

This paper presents a review of research in the area of life cycle costing and offers a critique of current commercial cost estimation systems. The focus of the review is on relevant academic research on life cycle cost from 2000 onwards. In addition to this a comparison of the current cost estimation systems is presented. Using the review findings and industrial investigations as a base, a set of mathematical representations for design and manufacturing costs and the introduction of the critical factors is proposed. These are considered in terms of the operational, maintenance and disposal costs to create a method for ascertaining the life cycle cost estimate for complex products. This is presented using as an exemplar, research currently being undertaken in the area of low volume and long life electronic products in the UK defence sector. The benefit of the method proposed is that it aims to avoid the inflexibility of traditional approaches which usually require historical and legacy data to support the cost estimation processes.

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Integrating Reliability Analysis in Life Cycle Cost Estimation of Heat Exchanger and Pump

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.903.408 ◽

2014 ◽

Vol 903 ◽

pp. 408-413 ◽

Cited By ~ 4

Author(s):

FRESELAM Mulubrhan ◽

Ainul Akmar Mokhtar ◽

Masdi Muhammad

Keyword(s):

Life Cycle ◽

Heat Exchanger ◽

Cost Estimation ◽

Life Cycle Cost ◽

Distribution Model ◽

Maintenance Cost ◽

Published Data ◽

Acquisition Costs ◽

Maintenance Policies ◽

High Degree

This paper presents a mathematical model to estimate the life cycle cost (LCC) of heat exchanger and pump. Maintenance cost, down time cost and acquisition costs are calculated. The main uncertainty in calculating these costs are prediction of number of failure and cumulative down time. Number of failure is determined using failure and repair time density function. According to the characteristic that the cumulative failure probability observed, a Weibull distribution model is used. The scale and shape parameters of the Weibull are extracted from the published data. The results of the study show that 71.3% loss in the reliability of heat exchanger and 34.2% reliability loss in pump could lead to 66.2 % increment of the total cost. The reliability of the system decreases because of number of failures will increase each year, and this failure leads to unavailability of the system.Therefore in order to achieve higher system effectiveness and reduce the total LCC, the reliability of the systems need to be increased through proper maintenance policies and strategies. The results of the study could assist the managers to make decision with high degree of accuracy.

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Life Cycle Cost Models and Cost Estimation Methods

Life Cycle Costing for Engineers ◽

10.1201/9781439816899-7 ◽

2009 ◽

pp. 61-80

Keyword(s):

Life Cycle ◽

Cost Estimation ◽

Life Cycle Cost ◽

Estimation Methods ◽

Cost Models

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Aviation Technology Life Cycle Management: Importance for Aviation Companies, Aerospace Industry Organizations and Relevant Stakeholders

MAD - Magazine of Aviation Development ◽

10.14311/mad.2017.02.03 ◽

2017 ◽

Vol 5 (2) ◽

pp. 15 ◽

Cited By ~ 2

Author(s):

Stanislav Szabo ◽

Ivan Koblen

Keyword(s):

Life Cycle ◽

Cost Estimation ◽

Life Cycle Cost ◽

Aerospace Industry ◽

Life Cycle Management ◽

International Standards ◽

Life Cycle Stages ◽

Aviation Technology ◽

Technology Life Cycle ◽

System Life

<p align="LEFT">The paper in the introductory part underlines some aspects concerning the importance of Aviation Technology Life Cycle Management and informs on basic international standards for the processes and stages of life cycle. The second part is focused on definition and main objectives of system life cycle management. The authors subsequently inform on system life cycle stages (in general) and system life cycle processes according to ISO/IEC/IEEE 15288:2015 standard. Following the fact, that life cycle cost (LCC) is inseparable part and has direct connection to the life cycle management, the paper contains brief information regarding to LCC (cost categories, cost breakdown structure, cost estimation a.o.). Recently was issued the first part of Aviation Technology Life Cycle Management monograph (in Slovak: ”Manažment životného cyklu leteckej techniky I”), written by I.Koblen and S.Szabo. Following this fact and direct relation to the topic of article it is a part of article briefly introduced the content of two parts of this monograph (the 2nd part of monograph it has been prepared for the print). The last part of article is focused on issue concerning main assumptions and conditions for successful application of aviation technology life cycle management in aviation companies, aerospace industry organizations as well as from the relevant stakeholders side.</p>

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