Patent ID: 11859507
Assignee: GENERAL ELECTRIC COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. The system of claim 14, wherein, for at least one secondary axial location along the rotor axis that is different than each primary axial location and includes the first optical target but not the second optical target, and at one or both sides of the turbine casing at each secondary axial location, the measurement module further receives a measurement of:
with the upper casing coupled to the lower casing in the top-on position, a seventh location of a seventh reference point at the first optical target coupled to the outer surface of the HJ flange of the lower casing; and
with at least the upper casing removed from the lower casing in the top-off position:
an eighth location of the seventh reference point at the first optical target;
a ninth location of an eighth reference point on the upper surface of the HJ flange of the lower casing, the eighth reference point having a known spatial relation to the component support position of the component in the lower casing at the respective secondary axial location; and
a tenth location of a ninth reference point on the upper surface of the HJ flange of the lower casing, the ninth reference point spaced from the eighth reference point on the upper surface of the HJ flange of the lower casing; and

wherein the calculation module further:
calculates the prediction offset value for the component support position in the top-on position based on the seventh, eighth, ninth and tenth locations and an inner radius of the lower casing for the at least one secondary axial location.