In the kernel of modelling repairable systems: a goodness of fit test for Weibull-based generalized renewal processes

Oliveira, Cícero Carlos Felix de; Cristino, Cláudio Tadeu; Firmino, Paulo Renato Alves

doi:10.1016/j.jclepro.2016.05.123

Cited by 10 publications

(5 citation statements)

References 35 publications

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“…To our knowledge, this is the first research to quantify the influence of the consumer behaviour in the context of the repair of devices on ownership costs. Previous research assessed the repair or replace decision from the producer instead of consumer point of view (de Oliveira et al , 2016), often in the context of the granted (legal) warranty (Jack and Van der Duyn Schouten, 2000; Iskandar et al , 2005; Wang et al , 2015). In case a device breaks down during the warranty period, producers are obliged to either repair the device, or provide a new device to the consumer.…”

Section: Introductionmentioning

confidence: 99%

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Economic consequences of consumer repair strategies for electrical household devices

Brusselaers¹,

Bracquené

Peeters

et al. 2019

JEIM

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Purpose The purpose of this paper is to investigate to what extent a consumer’s repair strategy impacts the annual costs of ownership of a washing machine and two types of vacuum cleaner. Design/methodology/approach The annual cost of ownership is determined by calculating the annual life cycle cost (LCC) for the respective devices. The annual LCCs of the different scenarios allow a comparison of the different repair strategy options. A Monte Carlo simulation is run to introduce parameter variability. The device’s failure rate is estimated by a combination of data sets on the devices’ performance. Findings Results demonstrate that the repair of the devices considered is a more favourable option over replacement. A consumer who aims for the lowest annual LCC should allow for a high number of repairs per device, without putting a maximum on the cost per repair. However, the consumer should become more cautious when a device approaches the end of its expected lifetime. Finally, the purchase of warranty can be interesting when the warranty covers a sufficiently long proportion of the device’s (expected) lifetime and when its cost does not exceed a threshold proportion of the initial purchase price. Research limitations/implications The costs for repair might be overestimated. Future research can focus on the reduction of repair costs following self-repair. Practical implications The results provide strong arguments in favour of repair instead of replacement of broken devices. Originality/value This is the first research to quantify the influence of consumer behaviour in the context of repair of devices on the ownership costs of these devices.

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Section: Introductionmentioning

confidence: 99%

“…This paper considers three electrical devices: a canister vacuum cleaner, an upright vacuum cleaner and a washing machine. Previous research focussed on a producer point of view on repair decisions (Wang et al , 2015; de Oliveira et al , 2016). All the considered devices are middle market types, produced by mainstream companies.…”

Section: Introductionmentioning

confidence: 99%

Economic consequences of consumer repair strategies for electrical household devices

Brusselaers¹,

Bracquené

Peeters

et al. 2019

JEIM

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“…Generally, GRP may be classified into two types (Kijima Type I and II), according to the method used to calculate the virtual age. These types can be seen in details in Moura et al [22] and other virtual age-based representations could be found in Guo et al [12], Tanwar et al [35], Ferreira et al [9], Oliveira et al [29] and Wang & Yang [38].…”

Section: Theoretical Background 21 Generalized Renewal Processmentioning

confidence: 90%

Extended warranty of medical equipment subject to imperfect repairs: an approach based on generalized renewal process and Stackelberg game

Santana

Santiago

Moura

et al. 2018

Eksploatacja i Niezawodność – Maintenance and Reliability

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Article citation info: instance, it is estimated that an amount of US$ 24.83 billion will be annually spent in the medical equipment maintenance market by 2022 [20]. However, maintenance outsourcing for medical equipment is yet to be fully explored by current research (Cruz & Rincon [5]).Warranty policies define responsibilities for both parties: the OEM and hospital managers. Indeed, the OEM is responsible for repairing the devices' eventual failures related to problems of equipment design, manufacturing and/or quality. The customers in turn should make proper use of equipment, i.e., they must comply to the specifications defined by the OEM (Rahman & Chattopadhyay [32]).Given that, a new trend has been intensified by manufacturers, selling an additional, optional coverage, which begins after the expiration of the base warranty, called Extended Warranty (EW) (Murthy

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“…In this section, we develop a goodness of fit test (GoFT) for the GuGRP based on a transformation of the failure time and virtual age into an exponential distribution. This idea has been used in the literature to construct a GoFT for the Weibull distribution [40]. After the transformation, a GoFT for the exponential distribution can be applied.…”

Section: Goodness Of Fit Test For the Gugrpmentioning

confidence: 99%

Assessing the time intervals between economic recessions

2020

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Economic recessions occur with varying duration and intensity and may entail substantial losses in terms of GDP, employment, household income, and investment spending. In this work, we propose a statistical model for the time intervals between recessions that accounts for the state of the economy and the impact of market adjustments and regulatory changes. The model uses a generalized renewal process based on the Gumbel distribution (GuGRP) in which times between consecutive events are conditionally independent. We also present a novel goodness of fit test tailored to the GuGRP that validates the use of the statistical model for the analysis of recessions. Analyzing recessions in the U.S. and Europe, we demonstrate that the statistical model characterizes well recession inter-arrival times and that the model performs better than simpler, commonly used distributions. In addition, the presented statistical model enables us to compare the adjustment processes in different economies and to forecast the occurrence of future recessions.

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In the kernel of modelling repairable systems: a goodness of fit test for Weibull-based generalized renewal processes

Cited by 10 publications

References 35 publications

Economic consequences of consumer repair strategies for electrical household devices

Economic consequences of consumer repair strategies for electrical household devices

Extended warranty of medical equipment subject to imperfect repairs: an approach based on generalized renewal process and Stackelberg game

Assessing the time intervals between economic recessions

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