An effort is underway to develop an Open System Architecture for ConditionBased Maintenance. The architecture development has focused on the definition of a distributed software architecture for CBM. The distributed software model was selected due to the recent emergence of enabling software technologies and the benefits of the approach. In particular, the availability of network connectivity p...

There is an increasing desire to use rotorcraft Health and Usage Monitoring Systems (HUMS) to facilitate Condition Based Maintenance (CBM) approaches to achieve operating cost reductions and other benefits. This type of application must be supported by the certification process, as it is an example of a “maintenance credit”. Guidance material on the process of obtaining a credit is presented in...

The purpose of this article is to compare time based maintenance (TBM) with condition based maintenance (CBM) relative to cutting tools in the process for removing material. We describe the fault detection (FD), method based on the use of the analytical model of the roughness of the work pieces to be machined. This model is established under given cutting conditions and calculated according to ...

The aim of this paper is to use the online change detection/ isolation methods in the framework of the condition-based maintenance. The purpose is to propose an adequate condition-based maintenance policy to a gradually deteriorating system with change of mode using on-line detection algorithms. The parameters defining the deterioration mode after the change can be unknown. The main purpose is ...

Condition based maintenance (CBM) is a powerful tool for improvement of system reliability and reduction of system downtime. This research considers CBM under which the system state is periodically observed with or without observational error, and maintenance is imperfect. System availability is maximized by determining the optimal maintenance threshold and the time interval between consecutive...

Subject review The model of maintenance is an algorithm of activities which aims at achieving the condition of a technical system that can ensure fulfilling the goals as well as predicting possible equipment breakdowns. Researches point out that corrective maintenance is associated with high cost and considerable time consumption. On the other side there are method of predictive maintenance, wh...

Condition Based Maintenance Using Proportional Hazards Model

Dr. Abdel-Moez Bayoumi is a professor of mechanical engineering and biomedical engineering and the Associate Dean of the College of Engineering and Computing at the University of South Carolina. The Center for Predictive Maintenance hosts a versatile facility for testing aircraft components and supports the adoption of the conditionbased maintenance (CBM) paradigm within the U.S. Army Aviation ...

Swedish industries maintenance-related costs run into billions on a yearly basis. Research has shown that up to 20% of the costs go to waste in non-realized revenue due to poor maintenance decisions. Both excessive and lacking maintenance can be harmful to an asset. A technology that strives to make the right judgements in maintenance intervals is the Condition Based Maintenance (CBM) technolog...