Numerical index of stability calculated for nonlinear system. Technique for determining rotor stability or instability from analysis of measurements adapted for use with computer simulations of rotor motion. Involves calculation of log decrement or increment of vibration amplitude. Applicable to rotors mounted in loose bearings and to similar problems in which load-versus-deflection characteristics nonlinear. Developed for assessments of vibrational characteristics of turbopump rotors, technique also usable with such mechanisms as high-speed ball bearings.
Stability/Instability Analysis of Rotating Machinery
NASA Tech Briefs ; 11 , 4
1987-04-01
Sonstige
Keine Angabe
Englisch
Automated Rotating-Machinery Analysis
NTRS | 1986
|MODAL ANALYSIS IN ROTATING MACHINERY
British Library Conference Proceedings | 2004
|Dynamic Analysis of Horizontal Rotating Machinery
SAE Technical Papers | 1999
|Rotating machinery vibration : from analysis to troubleshooting
TIBKAT | 2001
|Rotating-Machinery Critical Speeds
NTRS | 1983
|