NDLI: Experimental verification and practical application of torquewhirl theory of rotordynamic instability

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Experimental verification and practical application of torquewhirl theory of rotordynamic instability

Content Provider	NASA Technical Reports Server (NTRS)
Author	Noah, S. T. Vance, J. M. Yim, K. B.
Copyright Year	1985
Description	A theory developed by Vance in 1978 to explain the destabilizing effect of torque on a whirling rotor was experimentally verified. The measurements made on a specially designed test apparatus are described. New computer models were also developed to investigate the effect of torque on rotordynamic stability of multidisk flexible rotor bearing systems. The effect of torque was found to be most pronounced when the system is already marginally stable from other influences. The modifications required to include torque in a typical shaft transfer matrix are described, and results are shown which identify the type of rotor design most sensitive to load torque.
File Size	1651240
Page Count	17
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19860020697
Archival Resource Key	ark:/13960/t6sz15v0w
Language	English
Publisher Date	1985-12-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Antifriction Bearings Rotary Stability Torque Vibration Damping Rotors Configuration Management Transfer Functions Equations of Motion Rotation Matrices Mathematics Computer Programs Rotating Shafts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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