Multiscale Measurement of Blade Geometries with Robot-Supported, Laser-Positioned Multi-sensor-Techniques

Author:

Sliti Tim,Kästner Markus,Reithmeier Eduard

Abstract

AbstractThe regeneration of aircraft engine components requires a thorough assessment of the current condition. Based on this, a suitable repair strategy can be selected. To provide a measurement system, which can be used for the inspection of worn components, various optical measurement methods were combined to create a multi-sensor system. To completely reconstruct complex geometries a 6-axis industrial robot and an additional rotational axis are applied. This robot-assisted multi-sensor system is used to digitise and characterise turbine blades of aircraft engines. The inspection process is non-destructive and different features are measured to acquire a holistic model. The sensors are used to reconstruct the 3-D geometry in different scale ranges and characterise the surface based on reflection properties. Afterwards, the data of each individual sensor are transferred into a uniform coordinate system. To ensure high sensitivity to wear and damage, a model-based system calibration and a data interface for subsequent diagnostics and simulations are essential to provide a reliable assessment of the performance and durability of the inspected components.

Publisher

Springer International Publishing

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