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Chapter and Conference Paper
Alignment Identification of Multi-Bearing Rotor Systems
A general approach has been developed for on-site identification of the actual configuration (alignment) of multi-bearing rotor systems (e.g. a turbogenerator unit). Identification procedure is based on the mo...
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Chapter and Conference Paper
A Finite Element Model for Transverse Cracks in Rotors Including Some Fracture Mechanics Aspects
The model presented is a rotating finite element which has a crack at its mid plane. It has been formulated using the F.E. package, PAFEC. The stiffness matrix for this element is a function of the orientation...
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Chapter
Experimental Determination of Bearing Static Properties
As it was explained in chapter 2.1 the bearing static characteristics is given by the relations
1 <math display='block'> <mrow> <mi>S</mi><mo>=</mo><mi>S</mi><mrow><mo>(</mo> ... -
Chapter
Experimental Determination of Bearing Dynamic Properties
The bearing dynamic characteristics (chapter 2.1) is given by the stiffness and dam** matrices
1 <math display='block'> <mrow> <mrow><mo>[</mo> <mi>K</mi> <mo>]</mo></mrow><... -
Chapter
Fluid Film and Instability
Hydrodynamic bearings effect is important in many machines. Besides lowering critical speeds it may lead also to instability of rotor steady motion and hence self excited vibrations.
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Chapter
Theory of Bearing Static and Dynamic Properties
Bearing dynamics characteristics is necessary for rotor-bearing system dynamic analysis. The characteristics should make possible obtaining the forces acting on the journal at any moment of its vibrations. Dis...
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Chapter
Principles of Rotor System Instability
Equations of free transverse vibrations of a rotating shaft [1], [2], [3] describing small vibrations of the shaft around its equilibrium position at the speed ω, are of the form
1 ... -
Chapter
Effect of Supporting Structure on Rotor Dynamics
It is advantageous in many scientific as well as industrial situations to treat considered systems (mechanism, machine or its subassemblies as parts (subsystems) of a larger system. It may contain, besides the...
