By Fritz Boden, Nicholas Lawson, Henk W. Jentink, Jürgen Kompenhans
The ebook provides a synopsis of the most effects accomplished in the course of the three 12 months EU-project "Advanced Inflight dimension innovations (AIM)" which utilized complicated photo established dimension options to business flight trying out. The publication is meant to be not just an outline at the target actions but additionally a consultant at the software of complex optical size options for destiny flight checking out. in addition it's a precious advisor for engineers within the box of experimental equipment and flight checking out who face the problem of a destiny requirement for the improvement of hugely actual non-intrusive in-flight size strategies.
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Extra resources for Advanced In-Flight Measurement Techniques
Accelerometer signals conditioning and recording was provided by Piaggio; the acquisition rate was 60 Hz. For the later flight tests strain gauges were installed just outside the engine nacelle.
These limitations would require supplementing any IPCT system with traditional accelerometer measurements. In what follows, a brief description of the test set-up, the test instrumentation, the data analysis and the results of the ground vibration measurements will be presented. 1 Introduction Usually strain gauges and accelerometers are used during flight tests to measure the deformation and movement of aircraft structures. These sensors are highly sophisticated and give data with a high accuracy within a short time.
Boden et al. able to deliver these data only at the location where they have been positioned. Other drawbacks are the required wiring and the big effort for installing the sensors. Within the last years optical measurement techniques, which have the potential to replace strain gauges and accelerometers and to provide planar information, have been developed to measure model position and deformation of model structure in wind tunnels [1, 2]. One of these advanced optical measurement techniques is the Image Pattern Correlation Technique (IPCT) , which is applied to measure the wing deformation at the Piaggio P 180 aircraft during vibration testing.
Advanced In-Flight Measurement Techniques by Fritz Boden, Nicholas Lawson, Henk W. Jentink, Jürgen Kompenhans