System and method for determining airfoil characteristics from coordinate measuring machine probe center data
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United States of America Patent
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May 28, 1996
Grant Date -
N/A
app pub date -
Jul 1, 1994
filing date -
Jul 1, 1994
priority date (Note) -
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Abstract
The present invention discloses a system and method for determining airfoil characteristics from coordinate measuring machine probe center data. A coordinate measuring machine measures external coordinates along an airfoil and sends the coordinates to a computer. The computer sorts and orders the coordinates into a plurality of probe center points along a plurality of sections along the airfoil. The probe center points are triangulated to detect and eliminate errant points. Then the probe center points are correlated to a nominal part of the airfoil stored in the memory of the computer until a specified plane of interest is obtained. A discrete inset operation is performed on the correlated data for the plane of interest until a maximum thickness is obtained. The inset points are then joined to form an airfoil meanline, which is used to determine characteristics such as leading edge thickness, trailing edge thickness, and chord length.
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