Development of a set of equations for incorporating disk flexibility effects in rotordynamical analysesRotordynamical equations that account for disk flexibility are developed. These equations employ free-free rotor modes to model the rotor system. Only transverse vibrations of the disks are considered, with the shaft/disk system considered to be torsionally rigid. Second order elastic foreshortening effects that couple with the rotor speed to produce first order terms in the equations of motion are included. The approach developed in this study is readily adaptable for usage in many of the codes that are current used in rotordynamical simulations. The equations are similar to those used in standard rigid disk analyses but with additional terms that include the effects of disk flexibility. An example case is presented to demonstrate the use of the equations and to show the influence of disk flexibility on the rotordynamical behavior of a sample system.
Document ID
19920032920
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Flowers, George T. (Auburn University AL, United States)
Ryan, Stephen G. (NASA Marshall Space Flight Center Huntsville, AL, United States)