This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Determination of Costs and Benefits from Implementing an Engine Health Management System
- Aerospace Standard
Published February 05, 2013 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This ARP provides an insight into how to approach a cost benefit analysis (CBA) to determine the return on investment (ROI) that would result from implementing a propulsion Prognostics and Health Management (PHM) system on an air vehicle. It describes the complexity of features that can be considered in the analysis, the different tools and approaches for conducting a CBA and differentiates between military and commercial applications. This document is intended to help those who might not necessarily have a deep technical understanding or familiarity with PHM systems but want to either quantify or understand the economic benefits (i.e., the value proposition) that a PHM system could provide.
This Aerospace Recommended Practice (ARP) provides insight into how to create a cost benefit analysis to determine the justification for implementing a propulsion/engine health management system. The considerable advancement of health management (HM) tools and capabilities in the past 10 years, coupled with some successful applications to legacy and new engines drove the need to re-write the original AIR and provide more specific guidance, thus creating the need for an ARP. Moreover, there has been increasing requests in recent years by potential implementers, both commercial and military, to better understand how to make a convincing business case within their organizations, This, for many, has become the stumbling block that prevents implementation of an Engine Health Management System.
|Aerospace Standard||Lessons Learned from Developing, Implementing, and Operating a Health Management System for Propulsion and Drive Train Systems|
|Aerospace Standard||A Guide to APU Health Management|
|Aerospace Standard||Prognostics for Gas Turbine Engines|
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|TABLE 1||PHM SYSTEM IMPLEMENTATION RELATIVE COST AND WEIGHT IMPACTS (ESTIMATED)|
|TABLE 3||ESTIMATED PHM COSTS|
|TABLE 4||BUSINESS CASE 1: ROI AND NEW SAVINGS BASED ON A 10-YEAR PERIOD|
|TABLE 5||BUSINESS CASE 2: ROI AND NEW SAVINGS BASED ON A 10-YEAR PERIOD|
|TABLE 6||BUSINESS CASE 3: ROI AND NEW SAVINGS BASED ON A 10-YEAR PERIOD|
|TABLE 7||BUSINESS CASE 4: ROI AND NEW SAVINGS BASED ON A 10-YEAR PERIOD|
|TABLE 8||OVERALL ROI AND SAVINGS BASED ON A 10-YEAR PERIOD|
BackgroundEngine condition monitoring and rotorcraft HUMS(Health and Usage Monitoring Systems)can be used as a tool to track and restore engine performance, improve problem diagnosis, suggest solutions, promote better commercial and military aircraft operation, minimize in-flight failures, and reduce costs of engine maintenance. Because of these and other continuing objectives, the need for consolidated action by a group of experts to promote engine monitoring and rotorcraft conditio monitoring know-how and standards was identified. It was deemed appropriate by the SAE Propulsion Division to assign this task to a special committee designated as Committee E-32. The committee has existed for over 20 years and has 50 active members. Purpose / Charter Serves as a forum to gather, record, and publish expert information in the discipline of aircraft and helicopter engine condition monitoring and rotorcraft HUMS. The committee gathers and analyzes requirements for propulsion system monitoring for the various types of aircraft gas turbines and rotorcraft HUMS and develop standards and recommendations for the adoption of engine monitoring devices that affect the operation of gas turbine engines and rotorcraft. Objectives Identify potential engine and rotorcraft HUMS parameters suitable for sensing (pressure, temperature, etc.), and considerations involved in selecting parameters (potential problems, accuracy, cost, etc.). Analyze the various approaches to engine monitoring (e.g. airborne vibration monitoring systems and ground software interfaces, etc.) and establish criteria for the most cost-effective systems. Develop as appropriate, standards on engine and rotorcraft HUMS monitoring equipment and techniques, e.g. configuration of engine fittings for sensor connections, types of sensors, identification of signals which should be let to common diagnostic connectors, etc. Develop new requirements and uses for engine and rotorcraft HUS monitoring to promote cost-effective operation of aircraft. Sponsor technical conferences related to monitoring of air breathing engines and rotorcraft HUMS.
* Redlines comparisons are available for those standards listed in the Revision History that contain a radio button. A redline comparison of the current version against a revision is accomplished by selecting the radio button next to the standard and then selecting 'compare'. At this time, Redline versions only exist for some AMS standards. SAE will continue to add redline versioning with ongoing updates to SAE MOBILUS.