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Record Details

Record 20 of 2166
Stability of circulatory elastic systems in the presence of magnetic damping.
External Online Source: doi:10.1007/BF01277582
Author and Affiliation:
Smith, T. E.
Herrmann, G.(Northwestern University, Evanston, Ill., United States)
Abstract: The effect of a type of magnetic damping on the stability of equilibrium of some circulatory elastic systems is examined. A simple system with two degrees of freedom is considered first, and a destabilization is found to be caused by the magnetic field. The nature of the destabilization, however, is not identical to that caused by internal viscous damping. The differences and similarities between the two effects are discussed, and the results are also compared with those of linear external viscous damping. A continuous cantilever bar subjected to a follower force at its free end is then examined. It is found that the critical load is independent of the strength of the magnetic field, and is considerably lower than the corresponding critical load in the absence of a magnetic field. Finally, the continuous cantilever is treated approximately by Galerkin's procedure and also by using a two-degree-of-freedom model of the cantilever; the results obtained are qualitatively the same.
Publication Date: Jan 01, 1971
Document ID:
19720032395
(Acquired Dec 04, 1995)
Accession Number: 72A16061
Subject Category: PHYSICS, GENERAL
Document Type: Journal Article
Publication Information: Acta Mechanica; 12; 3-4,; 1971
Publisher Information: Austria
Contract/Grant/Task Num: NGR-14-007-011; NGR-14-007-067
Financial Sponsor: NASA; United States
Description: 14p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DYNAMIC STABILITY; ELASTIC SYSTEMS; MAGNETIC EFFECTS; VIBRATION DAMPING; BOUNDARY VALUE PROBLEMS; CANTILEVER MEMBERS; CRITICAL LOADING; DEGREES OF FREEDOM; DESTABILIZATION; EQUATIONS OF MOTION; GALERKIN METHOD; MAGNETIC FLUX; VISCOUS DAMPING
Imprint And Other Notes: Acta Mechanica, vol. 12, no. 3-4, 1971, p. 175-188.
Miscellaneous Notes: p. 175-1
Availability Source: Other Sources
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