Integrating IVHM and Asset Design

Integrated Vehicle Health Management (IVHM) describes a set of capabilities that enable effective and efficient maintenance and operation of the target vehicle. It accounts for the collection of data, conducting analysis, and supporting the decision-making process for sustainment and operation. The design of IVHM systems endeavours to account for all causes of failure in a disciplined, systems engineering, manner. With industry striving to reduce through-life cost, IVHM is a powerful tool to give forewarning of impending failure and hence control over the outcome. Benefits have been realised from this approach across a number of different sectors but, hindering our ability to realise further benefit from this maturing technology, is the fact that IVHM is still treated as added on to the design of the asset, rather than being a sub-system in its own right, fully integrated with the asset design. The elevation and integration of IVHM in this way will enable architectures to be chosen that accommodate health ready sub-systems from the supply chain and design trade-offs to be made, to name but two major benefits. Barriers to IVHM being integrated with the asset design are examined in this paper. The paper presents progress in overcoming them, and suggests potential solutions for those that remain. It addresses the IVHM system design from a systems engineering perspective and the integration with the asset design will be described within an industrial design process

Juridical and financial considerations on the public re capitalisation and rescue of financial institutions during periods of financial crises (Part I)

As well as a consideration of why the lender of last resort facility should be used for emergency situations and systemically relevant institutions in particular, an interesting point which will be considered in this paper is the comparison between the European Central Bank (ECB) Recommendation and its application by the Commission in the Re capitalisation Communication, specifically with its Annex, where the Commission explains how it determines the price of equity or own funds1 (ordinary or common shares) - balancing the “real value” with the “market value” within a crisis context. This paper will also consider how to transform the Crisis into an opportunity in order to minimise tax burdens to taxpayers – as well as making financial markets more efficient. Furthermore, whether the Commission and Member States have applied the methodology (the determination of the price of equity – as stated in the Annex to the Re capitalisation Communication) in determining the price of equity with respect to the capital of banks acquired by Member States, will be addressed. Such consideration could provide a vital key to determining the real value of State Aid and the best possible price for which capital could be sold. Given the scale of government intervention and State rescues which occurred during the recent crisis – as well as the prominence accorded to measures aimed at preventing and limiting distortions of competition, calls have been made for competition authorities to take on more formidable roles in designing and implementing exit strategies. In order to foster competition as much as possible, it is proposed that ”governments should provide financial institutions with incentives to prevent them from depending on government support once the economy begins to recover.”Financial Crisis; State aid; re capitalisation; MEIP; guarantees; Troubled Asset Relief Program (TARP); fundamentally sound institutions; rescues; restructuring; recovery

A review of physics-based models in prognostics: application to gears and bearings of rotating machinery

Health condition monitoring for rotating machinery has been developed for many years due to its potential to reduce the cost of the maintenance operations and increase availability. Covering aspects include sensors, signal processing, health assessment and decision-making. This article focuses on prognostics based on physics-based models. While the majority of the research in health condition monitoring focuses on data-driven techniques, physics-based techniques are particularly important if accuracy is a critical factor and testing is restricted. Moreover, the benefits of both approaches can be combined when data-driven and physics-based techniques are integrated. This article reviews the concept of physics-based models for prognostics. An overview of common failure modes of rotating machinery is provided along with the most relevant degradation mechanisms. The models available to represent these degradation mechanisms and their application for prognostics are discussed. Models that have not been applied to health condition monitoring, for example, wear due to metal–metal contact in hydrodynamic bearings, are also included due to its potential for health condition monitoring. The main contribution of this article is the identification of potential physics-based models for prognostics in rotating machinery

Integrating IVHM and asset design

Integrated Vehicle Health Management (IVHM) describes a set of capabilities that enable effective and efficient maintenance and operation of the target vehicle. It accounts for the collecting of data, conducting analysis, and supporting the decision-making process for sustainment and operation. The design of IVHM systems endeavours to account for all causes of failure in a disciplined, systems engineering, manner. With industry striving to reduce through-life cost, IVHM is a powerful tool to give forewarning of impending failure and hence control over the outcome. Benefits have been realised from this approach across a number of different sectors but, hindering our ability to realise further benefit from this maturing technology, is the fact that IVHM is still treated as added on to the design of the asset, rather than being a sub-system in its own right, fully integrated with the asset design. The elevation and integration of IVHM in this way will enable architectures to be chosen that accommodate health ready sub-systems from the supply chain and design trade-offs to be made, to name but two major benefits. Barriers to IVHM being integrated with the asset design are examined in this paper. The paper presents progress in overcoming them, and suggests potential solutions for those that remain. It addresses the IVHM system design from a systems engineering perspective and the integration with the asset design will be described within an industrial design process

Juridical and Financial Considerations on the Public Recapitalisation and Rescue of Financial Institutions During Periods of Financial Crises (Part I)

As well as a consideration of why the lender of last resort facility should be used for emergency situations and systemically relevant institutions in particular, an interesting point which will be considered in this publication is the comparison between the European Central Bank (ECB) Recommendation and its application by the Commission in the Re capitalisation Communication, specifically with its Annex, where the Commission explains how it determines the price of equity or own funds (ordinary or common shares) - balancing the “real value” with the “market value” within a crisis context. This publication will also consider how to transform the Crisis into an opportunity in order to minimise tax burdens to taxpayers – as well as making financial markets more efficient. Furthermore, whether the Commission and Member States have applied the methodology (the determination of the price of equity – as stated in the Annex to the Recapitalisation Communication on Financial Institutions) in determining the price of equity with respect to the capital of banks acquired by Member States, will be addressed. Such consideration could provide a vital key to determining the real value of State Aid and the best possible price for which capital could be sold. Given the scale of government intervention and State rescues which occurred during the recent crisis – as well as the prominence accorded to measures aimed at preventing and limiting distortions of competition, calls have been made for competition authorities to take on more formidable roles in designing and implementing exit strategies. In order to foster competition as much as possible, it is proposed that ”governments should provide financial institutions with incentives to prevent them from depending on government support once the economy begins to recover.

THE LEAD TIME TRADE-OFF: THE CASE OF HEALTH STATES BETTER THAN DEATH

The Lead Time Trade-Off (L-TTO) is a variant of the TTO method that tries to overcome some of the problems of the most widely used method (Torrance, 1986) for health states worse than death (SWD). Theoretically, the new method reduces the problems that have been detected when researchers have elicited preferences for SWD. However, several questions remain to be clarified. One of them is the influence of this new method for states better than death (SBD). In this paper we try to shed some light on this issue using a split sample design (n=500). One subsample (n=188) was interviewed using L-TTO and the rest using the traditional TTO (T-TTO). Our results show that the L-TTO produces utilities that are consistently higher than the T-TTO for SBD. Furthermore, the higher the severity the higher the difference between both methods. Another finding is that the L-TTO seems to produce a lower number of SWD. This effect seems to be concentrated in the most severe health states. This implies a violation of additive separability, one of the cornerstones of the QALY model. Our data show that the L-TTO may be different from the T-TTO in more respects than those that were originally intended.Lead Time Trade-Off, QALYs, Discounting, Additive Independece

Estimations of the Distances of Stellar Collapses in the Galaxy by Analyzing the Energy Spectrum of Neutrino Bursts

The neutrino telescopes of the present generation, depending on their specific features, can reconstruct the neutrino spectra from a galactic burst. Since the optical counterpart could be not available, it is desirable to have at hand alternative methods to estimate the distance of the supernova explosion using only the neutrino data. In this work we present preliminary results on the method we are proposing to estimate the distance from a galactic supernova based only on the spectral shape of the neutrino burst and assumptions on the gravitational binding energy released an a typical supernova explosion due to stellar collapses.Comment: Proceedings of the Second International Symposium on Strong Electromagnetic Fields and Neutron Stars (SMFNS 2011) Instituto de Cibern\'etica, Matem\'atica y F\'isica (ICIMAF) Sociedad Cubana de F\'isica (SCF) Varadero, Cuba, 5-7 May 201