SMART ACTIVE CLEARANCE CONTROL BETWEEN A ROTOR BLADE AND SHROUD

摘要

A method is provided for calibrating an active clearance control system (60) for a plurality of turbine engines (20). During this method, a squeeze test (500) is performed between a tip (66) of a rotor blade (68) and a shroud (64). Results of the squeeze test are applied to adjust a gap (62) between the tip and the shroud. The performance of the squeeze test and the application of the results are individually performed for each of the turbine engines. The active clearance control system includes an actuation system (70) and a controller (80) and is operable for recalibration based on the performance of another squeeze test.