NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Real-Time Simulation for Verification and Validation of Diagnostic and Prognostic AlgorithmsTo verify that a health management system (HMS) performs as expected, a virtual system simulation capability, including interaction with the associated platform or vehicle, very likely will need to be developed. The rationale for developing this capability is discussed and includes the limited capability to seed faults into the actual target system due to the risk of potential damage to high value hardware. The capability envisioned would accurately reproduce the propagation of a fault or failure as observed by sensors located at strategic locations on and around the target system and would also accurately reproduce the control system and vehicle response. In this way, HMS operation can be exercised over a broad range of conditions to verify that it meets requirements for accurate, timely response to actual faults with adequate margin against false and missed detections. An overview is also presented of a real-time rocket propulsion health management system laboratory which is available for future rocket engine programs. The health management elements and approaches of this lab are directly applicable for future space systems. In this paper the various components are discussed and the general fault detection, diagnosis, isolation and the response (FDIR) concept is presented. Additionally, the complexities of V&V (Verification and Validation) for advanced algorithms and the simulation capabilities required to meet the changing state-of-the-art in HMS are discussed.
Document ID
20050206335
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Aguilar, Robet (Boeing Co. Canoga Park, CA, United States)
Luu, Chuong (Boeing Co. Canoga Park, CA, United States)
Santi, Louis M. (Christian Brothers Univ. Memphis, TN, United States)
Sowers, T. Shane (Analex Corp. Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Computer Programming And Software
Meeting Information
Meeting: AIAA Conference
Location: Tucson, AZ
Country: United States
Start Date: July 10, 2005
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NAS8-01107
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available