A New On-Board Gauge Calibration Process for Aircraft Engine Testing
Abstract
A new procedure for calibrating on-board gauges on the blade assemblies of turbomachines is proposed in this paper. The calibration of an engine gauge, determined a priori during a component dynamic test, makes it possible to establish the levels of dynamic stress on the entire instrumented airfoil (based on the readings output by the gauge during the engine test). The method proposed is based on the use of holographic dynamic measurements enabling the qualification of a finite element model in relation to the component test. The calibration relations are then determined based on the qualified model. The procedure proposed enables an increase in the reliability of the calibration relations by making it possible to take into account in the model the real conditions of the engine test (thermal, centrifugal and aerodynamic loads, and the shapes of dynamic modes of the complete blade assembly). Similarly, it enables a drastic reduction in the costs relating to the component tests required to establish these relations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2003
- Accession Number
- ADP014171
Entities
People
- Eric Seinturier
- Jean-pierre Lombard
- Marc Berthillier