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Toward a real-time measurement-based system for estimation of helicopter engine degradation due to compressor erosion
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Litt, Jonathan S. Simo, Donald L. |
| Copyright Year | 2007 |
| Description | This paper presents a preliminary demonstration of an automated health assessment tool, capable of real-time on-board operation using existing engine control hardware. The tool allows operators to discern how rapidly individual turboshaft engines are degrading. As the compressor erodes, performance is lost, and with it the ability to generate power. Thus, such a tool would provide an instant assessment of the engine s fitness to perform a mission, and would help to pinpoint any abnormal wear or performance anomalies before they became serious, thereby decreasing uncertainty and enabling improved maintenance scheduling. The research described in the paper utilized test stand data from a T700-GE-401 turboshaft engine that underwent sand-ingestion testing to scale a model-based compressor efficiency degradation estimation algorithm. This algorithm was then applied to real-time Health Usage and Monitoring System (HUMS) data from a T700-GE-701C to track compressor efficiency on-line. The approach uses an optimal estimator called a Kalman filter. The filter is designed to estimate the compressor efficiency using only data from the engine s sensors as input. |
| File Size | 819794 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070028828 |
| Archival Resource Key | ark:/13960/t7hq8x78t |
| Language | English |
| Publisher Date | 2007-06-25 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Degradation Wear Compressor Efficiency Turboshafts Engine Control Helicopter Engines Maintenance Kalman Filters Ingestion Engines Real Time Operation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
