Maxime Monnin

A Methodology for Weapon System Availability Assessment, incorporating Failure, Damage and Regeneration

Availability is a determining factor in systems characterization. Because military systems must act in a hostile environment, they are particularly vulnerable in situations of unavailability. Military weapon systems can become unavailable due to system failures or damage to the system; in both cases, system regeneration is needed to restore availability. However, very few of the general dependability studies, or even the more specific availability studies take battlefield damage into account. This paper aims to define principles for weapon systems modeling that integrate both system failure and system damage, as well as the possibility of regeneration, into operational availability assessment. This modeling method uses a unified failure/damage approach based on state-space modeling.

A UNIFIED FAILURE/DAMAGE APPROACH TO BATTLE DAMAGE REGENERATION : APPLICATION TO GROUND MILITARY SYSTEMS

Abstract Availability is a determining factor in systems characterization. Because they must act in a hostile environment, military systems are particularly vulnerable in situations of non-availability. Military weapon systems availability can be affected by system failures or by damage to the system, and in either case, system regeneration is needed. However, very few availability studies take battlefield damage into account in their more general dependability studies. This paper takes a look at the issues and trends related to the study of battlefield damage, specifically those related to the modeling of such damage and it proposes a unified approach to regeneration engineering that exploits the parallelism between failure and damage in order to manage system failure and damage to the system.

Fault Diagnosis System Based on Ontology for Fleet Case Reused

Maintenance plays a key role by improving system availability, performance efficiency, and product quality. Condition based maintenance plus (CBM+) and Prognostics and Health Management (PHM) maintenance strategies propose new maintenance approaches in a “predict and prevent” view. In these anticipative approaches, early diagnosis plays a key role. Such a diagnosis is hard since only partial information is available. We propose to use the benefit of past event occurred on similar systems to help diagnosis. The originality of the approach lies in the consideration of systems that are not identical to the one under study. Indeed, similar systems are considered in order to gather more relevant and wider information to handle current diagnosis case. The level of similarity is controlled using an ontology in order to broaden or narrow the search.

Dynamic model for assessing impact of regeneration actions on system availability: Application to weapon systems

Availability is a determining factor in systems characterization. Because military systems must act in a hostile environment, they are particularly vulnerable in situations of unavailability. Military weapon systems can become unavailable due to system failures or damage to the system; in both cases, system regeneration is needed to restore availability. However, very few of the general dependability studies or even the more specific availability studies take battlefield damage into account. This paper aims to define principles for weapon systems modeling that integrate both system failure and system damage, as well as the possibility of regeneration, into operational availability assessment. This modeling method uses a unified failure/damage approach based on state-space modeling.

Regeneration engineering for improving technical asset life cycle: an application to weapon systems availability assessment

Today, system availability is a determining factor in system deployment because it must be guaranteed in the operational phase while taking a large part of assets whole life cycle cost (WLCC). Thus, controlling system availability is now a critical issue in systems engineering. This is even more true for military systems that operate in a battle context. In fact, since they must act in a hostile environment, they can become unavailable due to system failures or damage. In both cases, it is necessary to regenerate the system in order to restore its availability in mission. In this paper, we propose a weapon system modelling method that supports regeneration engineering. This method relies on a unified failure/damage approach to extend accepted availability models. It integrates both failures and damage, as well as the possibility of regeneration, into the operational availability assessment. The proposed method is illustrated with an example of weapons system architecture.

A Unified Failure/Damage Approach to Battle Damage Regeneration: Application to Ground Military Systems

: Availability is a determining factor in systems characterization. Because they must act in a hostile environment, military systems are particularly vulnerable in situations of non-availability. Military weapon systems availability can be affected by system failures or by damage to the system, and in either case, system regeneration is needed. However, very few availability studies take battlefield damage into account in their more general dependability studies. This paper takes a look at the issues and trends related to the study of battlefield damage, specifically those related to the modeling of such damage and it proposes a unified approach to regeneration engineering that exploits the parallelism between failure and damage in order to manage system failure and damage to the system.