Summary
The dynamical response of thin circular plates and their stability, resulting from the action of an arbitrary load which is a spacetime function, has been examined. The solution is obtained in closed form by means of Green's function and its expansion in terms of corresponding eigenfunctions. In the case of a load moving on the periphery the stability criterion is reduced to the examination of two time-dependent functions. These functions show that, for a constant load moving with constant angular velocity and for a given range of eigenfrequencies, the motion is unstable.
Übersicht
Für dünne Kreisplatten, die in beliebiger Weise örtlich und zeitlich belastet werden, wird das dynamische Verhalten und die Stabilität untersucht. Die Lösung wird in geschlossener Form mit Hilfe von Green-schen Funktionen angegeben, die nach den entsprechenden Eigenfunktionen entwickelt werden. Für den Fall einer auf dem Umfang bewegten Last reduziert sich die Stabilitätsbestimmung auf die Untersuchung von zwei zeitabhängigen Funktionen. Diese Funktionen zeigen, daß im Fall einer konstanten Last, die mit konstanter Geschwindigkeit wandert für einen gewissen Bereich von Eigenfrequenzen Instabilität auftreten kann.
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Literatur
Reismann, H.: Forced Vibration of a Circular Plate. Trans. ASME, J. Appl. Mech. 26 (1959), pp. 526–527
Southwell, R. V.: On the Free Transverse Vibrations of a Uniform Circular Disc Clamped at its Centre, and of the Effects of Rotation. Proc. R. Soc. London 101 (1922), pp. 133–153.
Anderson, G.: On the Determination of Finite Integral Transforms of Forced Vibration of Circular Plates. J. Sound Vibr. 9 (1969), pp. 126–144
Motte, C. D.Jr.: Natural Frequencies in Annuli with Induced Thermal Membrance Stresses. Trans. ASME 89 (1967), pp. 611–618.
Motte, C. D.Jr.: Free Vibration of Initially Stressed Circular Discs. Trans. ASME 87 (1965), pp. 258–264
Motte, D. C.Jr.: Stability of Circular Plates Subjected to Moving Load. J. Franklin Inst. 290 (1970), pp. 329–344
Stanišić, M. M.; Euler, A. J., Montgomery, S. T.: On a Theory Concerning the Dynamical Behavior of Structures Carrying Moving Masses. Ing.-Arch. 43 (1974), pp. 295–304
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The author of this paper is thankful to graduate student Alan Greenburg of Purdue University, School of Aeronautics and Astronautics for reading and critizing the manuscript.
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Stanišić, M.M. A contribution to the stability of circular plates. Ing. arch 46, 383–388 (1977). https://doi.org/10.1007/BF00535289
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DOI: https://doi.org/10.1007/BF00535289