By Institution of Mechanical Engineers
This publication offers the papers from the tenth foreign convention on Vibrations in Rotating equipment. This convention, first held in 1976, has outlined and redefined the state of the art within the many facets of vibration encountered in rotating equipment. extraordinary by means of an exceptional mixture of business and educational participation completed, those papers current the most recent equipment of theoretical, experimental and computational rotordynamics, along the present problems with drawback within the extra improvement of rotating machines. issues are aimed toward propelling ahead the criteria of excellence within the layout and operation of rotating machines. Read more...
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Extra resources for 10th International Conference on Vibrations in Rotating Machinery : 11-13 September 2012, IMechE, London
Cyclic-symmetry [10, 11] 26 gives rise to groups of modes with similar spatial characteristics and close natural frequencies. The special properties of rotating machines and the forces caused by rotation give rise to deformation patterns moving rotationally relative to the structure, these special combinations are referred to as ‘traveling waves’. (1) describes a wave traveling on a bladed disk by capturing its state at several discrete time instances. Figure 1. (1) shows a single mode of vibration, in reality several modes of vibration combine to create the deformed state, as shown below for a vibrating disc.
Hong, and C. W. Lee, "Modal analysis of asymmetric rotor system with isotropic stator using modulated coordinates," Journal of Sound and Vibration, vol. 284, pp. 651-671, 2005. G. Genta, C. Feng, and A. Tonoli, "Dynamics behavior of rotating bladed discs: A finite element formulation for the study of second and higher order harmonics," Journal of Sound and Vibration, vol. 329, pp. 5289-5306, Dec 6 2010. I. Bucher, "Transforming and separating rotating disk vibrations using a sensor array," Journal of Sound and Vibration, vol.
Model based signal processing in Smart rotating machines I Bucher Mechanical Engineering, Technion, Israel ABSTRACT Model-based signal-processing bridges the gap between numerical modelling and experimental testing of rotating machines. The present paper focuses on signalprocessing methods exploiting multiple sensors and capable of handling transient dynamics under varying rotation speeds. g. cyclic-symmetry, gyroscopic effects, directional whirling and circumferentially traveling deformations.