On Quantifying Cost-Benefit of ISHM in Aerospace Systems

Abstract

Integrated Systems Health Management (ISHM) is a desired system engineering capability to detect, assess, and isolate faults in complex aerospace systems to improve safety and reliability. At the conceptual design level, system-level engineers must make decisions regarding the extent of vehicle fault coverage using on-board sensors and the data collection, processing, interpretation, display, and action capabilities for the various subsystems, all considered essential parts of ISHM. In this paper, we propose a CostBenefit Analysis approach to initiate the ISHM design process. The key to this analysis is the formulation of an objective function that explicitly quantifies the cost-

The effect of current military maintenance practices and regulations on the implementation of Integrated Vehicle Health Management technology

“…The capabilities of health monitoring tools have improved significantly in recent years, making industrial applications possible. As a consequence, several Cost Benefit Analysis (CBA) procedures for IVHM have been proposed to determine the improvements in support cost and vehicle availability (Leao et al, 2008;Banks and Merenich, 2007;Hoyle et al, 2007). Some have even gone further by proposing methodologies to optimize the design of certain tools from a CBA perspective (Kacprzynski et al, 2002).…”

State-of-the-art in integrated vehicle health management

“…The usual approach taken is to give a short discussion of the concept and then to describe specific IVHM solutions [9], [14], [27]. Despite their brevity, these introductory discussions typically contain a description of the benefits of IVHM, although a more detailed treatment of the potential drivers is given by authors who substantially focus on cost-benefit analysis [3], [26], [33]. For mission operations, adoption of IVHM can provide with adaptive control and improved survivability which enhances the probability of mission success [14].…”

“…Future research challenges in the IVHM literature: Future research is suggested to leverage IVHM technology development across industrial sectors and organisations [12]. Bespoke methodologies are also required for the conceptual design stage to identify whether and how IVHM applications can be cost-effective [26] and the level of implementation that is most appropriate for the product or business [27]. Similarly, more quantitative methods are required to evaluate the safety benefits of IVHM and thus provide comprehensive decision support for vehicle owners [3].…”

“…Most authors [33], [1], [26] see the main barrier to the adoption of IVHM as the cost of hardware and software. Reichard et al [7] indicate that this cost includes not only the development of the sensors and data processing, but also the penalty costs associated with additional weight, power, computing and communication resources.…”

“…Almost no papers have been published in academic journals but some articles have appeared as special reports, typically from government agencies and military organisations. These articles cover a range of aspects of IVHM, with approximately 35% describing potential impacts or costbenefit analyses [11], [24], [25], [26]; 15% discussing design approaches [15], [27], [28]; and about 25% focusing on examples of IVHM systems in use or under development [8], [29], [30]. …”