SHAFT FINITE-ELEMENTS FOR ROTOR DYNAMICS ANALYSIS

• Type: Article in International Scientific Journal
• Date: 1991

Authors

T.C. Gmuer (Author) Other; J. F. Dias Rodrigues (Author) FEUP

Journal

Title: Journal of Vibration and Acoustics, Transactions of the ASME

Vol. 113

Pages: 482-493

ISSN: 1048-9002

Publisher: ASME

Indexing

ISI Proceedings

ISI Web of Knowledge - 17 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

CORDIS: Technological sciences > Engineering > Mechanical engineering > Vibration engineering

Other information

Authenticus ID: P-008-P0T

Abstract (EN): This paper presents efficient C0-compatible finite elements for the modelling of rotor-bearing systems. The proposed linearly tapered elements, which have a variable number of nodal points, are simple and attractive from a cost viewpoint. They include the effects of translational and rotatory inertia, gyroscopic moments, internal viscous and hysteretic damping, shear deformations, and mass eccentricity. Developed from the weak formulation associated with the differential equations governing the transverse dynamic behavior of rotors, these elements show a convergence pattern similar to the one obtained with conventional C1-compatible shaft elements. Numerical examples are provided, which compare the proposed approach to the C1-formulation or to previously published results.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12