By Institution of Mechanical Engineers
This e-book provides the papers from the tenth overseas 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. amazing via a very good mixture of business and educational participation completed, those papers current the most recent tools of theoretical, experimental and computational rotordynamics, along the present problems with quandary within the additional improvement of rotating machines. themes are aimed toward propelling ahead the criteria of excellence within the layout and operation of rotating machines.
- Presents newest equipment of theoretical, experimental and computational rotordynamics
- Covers present problems with crisis within the additional improvement of rotating machines
Read or Download 10th International Conference on Vibrations in Rotating Machinery: 11-13 September 2012, Imeche London, UK PDF
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Additional resources for 10th International Conference on Vibrations in Rotating Machinery: 11-13 September 2012, Imeche London, UK
A clear example illustrating the perfect separation of the proposed method is shown for a whirling shaft. (8), two sensors at right angle measured the shaft vibration. Because the shaft cross-section does not deform, one can treat this case as if there are N=4 sensors, with s (t ), s 0 90o (t ), s0 (t ), s90o (t ) where the subscript indicates the angular position of the two sensors . The directional multi-sensor algorithm was employed to isolate the components synchronous to the rotation speed (1X).
Subbiah et al.  studied the response of rotor systems under random support excitations using modal analysis methods. Lee et al.  focused on the experimental behavior of a rotor under shock support excitation. Da Silva Tuckmantel et al.  represented the supporting structure (foundation) of a rotating system by coupled as well as uncoupled modes for calculating the system response. In , experimental tests have been shown for a flexibly supported undamped rigid block foundation in rotating machinery.
1 Disk Since the disk is considered to be rigid, only its kinetic energy Td is calculated as follows : Td = ( ) g md v OR l 2 2 + ( g 1 ωRRl 2 ) T g Imd ωRRl with g where md is the mass of the disk, v OR l Imd = diag ⎡⎣ Immod + Imdid Immod − Imdid ⎤⎦ Imy d (2) is the translational velocity vector of its center and Imd is its principal inertia tensor. Immod and Imdid are used to distinguish the effects due to the mean inertia of the disk mass and those due to the inertia modeling the geometric asymmetry of the disk.