Titlebook: Dynamics of Rotors and Foundations; Erwin Krämer Book 1993 Springer-Verlag Berlin Heidelberg 1993 Foundations.Rotordynamik.Rotors.assembly

integrated

Computer ModelFigures 14.1 to 14.3 show typical examples of rotor systems whose characteristics will be investigated in this part. These systems consist of rotor, bearings and bearing pedestals and models will be devised which will enable the bending vibrations of real rotors to be obtained sufficiently accurately, using reasonable computing time.

平息

ALIBI

The Short and the Long Rotorf motion quoted in Chap. 4, equations (4.8) and (4.47) are valid, however, for arbitrary values of .. and .. that is for shafts having a thick disc or a long stiff rotor body, as shown for example in Fig. 5.1. The vibrational behaviour of such a model will be investigated in the present chapter.

Jacket

vertebrate

模仿

Internal Dampingt shrink fits or couplings. The first was reported by . and . 1925 [14, 15, 16]. The mechanism is very complex but can be understood by the assumption of a viscous law. This will be considered in the next section.

mucous-membrane

engender

Resultsilst one can to some extent discuss the general behaviour of the simple model, it is not possible for the complex model. Thus, we shall consider a few examples and report results from further calculations. The essential vibration behaviour of the rotors of turbo machines will thus be characterized.

Outmoded

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watertight,