Patent ID: 6044553
Filing Date: 2000-04-04
Classification: G01M,Y10T

Abstract:
A method for reducing the weight critical flexing amplitude of a flexible rotor having a flexural stiffness anisotropy, comprising the following steps:a) rotating said rotor about a central axis thereof and measuring a rotor deflection of said rotor during said rotating to provide measured values of rotor deflection,b) forming a mathematical model for representing said rotor, wherein said mathematical model comprises an equation of motion including model values of rotor deflection;c) evaluating said model values of rotor deflection in connection with said measured values of rotor deflection so as to minimize a difference between said model values and said measured values;d) defining said flexural stiffness anisotropy of said rotor by using said evaluated model values of rotor deflection in said mathematical model;e) calculating compensation data that reduce said defined flexural stiffness anisotropy in said mathematical model; andf) adjusting a configuration of said rotor in accordance with said compensation data to reduce said flexural stiffness anisotropy of said rotor.