Patent ID: 8180596
Filing Date: 2012-05-15
Classification: F04D,Y10T

Abstract:
1. A method of assembling a rotatable machine that includes a plurality of blades that extend radially outwardly from a rotor, said method comprising: determining, using a computer a geometric parameter for each blade in a row of blades that is relative to a ratio, R of an inlet area and an outlet area of a predetermined volume between each pair of blades; determining, using the computer R using the determined geometric parameter; determining an initial sequence map for the row of blades that facilitates minimizing a difference of R between circumferentially adjacent pairs of blades; selecting, using the computer, each blade placement in a subsequent map based on the blade's contribution to a variation of R between each blade and adjacent blade in a pair of blades in the row of blades; iteratively swapping and remapping the sequence of the blades, using the computer perform blade mapping, to facilitate reducing a moment weight vector sum of the rotor to a value that is less than a predetermined value; outputting using the computer, a final blade map describing a location on the rotor to install each blade, the final blade map based on an endpoint of the remapping; and installing the blades on the rotor based on the final blade map.