DEVELOPED COMPUTER AIDED INSPECTION METHOD FOR FREE-FORM SURFACES APPLIED ON AERONAUTICAL LIFT AND CONTROL SURFACES

Vidosav Majstorovic, Srdjan Zivkovic
Abstract:
Angular relationships of lift and control surfaces, wings and all the elements needed to determine the model for wind tunnel testing are essential to the quality of the final assembly. In relation to the measurement of airfoil shape deviation from this determination is complicated and requires complex mathematical models and calculation. It is necessary to find the plane that represents the wing and calculate the required angular relationships such as the wing setting angle and the dihedral angle. Such a plane exists on the wing and is called the Wing Reference Plane (WRP). This plane is not material and its direct measurement is impossible.
Identifying dihendral angle, wing seting angle and local airfoil twisting of models aircraft is accomplished by measuring the WRP. Detection of these parameters are required to model the quality of the final geometric inspection. The developed method requires the preparation of measurement and calculation of the CAD/CAM system. It takes information about the relationship between WRP and the upper and lower wing surface transferred to the coordinate inspection program. Over the measured coordinates apply a special system of equations. The result of the calculation is measured WRP. The developed method can also be successfully applied to measure the deflection angle of canards, slats and flaps.
Wing of wind tunnel model LASTA-2 (Swallow P2), is taken as an example of application of the developed computer aided inspection method.
Keywords:
intelligent measurement, angular relationships in space, aeronautical surfaces
Download:
IMEKO-TC14-2013-87.pdf
DOI:
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Event details
IMEKO TC:
TC14
Event name:
TC14 ISMQC 2013
Title:

11th International Symposium on Measurement and Quality Control

Place:
Cracow and Kielce, POLAND
Time:
11 September 2013 - 13 September 2013
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