A Method for Calculating the Dynamics of Rotating Flexible Structures, Part 2: Example Calculations

Autor:	A. M. Slavin, Daniel J. Segalman, C.R. Dohrmann
Rok vydání:	1996
Předmět:	Vibration Modal Classical mechanics Simple (abstract algebra) Numerical analysis Mathematical analysis General Engineering Natural frequency Deformation (meteorology) Rotation (mathematics) Finite element method Mathematics
Zdroj:	Journal of Vibration and Acoustics. 118:318-322
ISSN:	1528-8927 1048-9002
DOI:	10.1115/1.2888184
Popis:	The problem of calculating the vibrations of rotating structures has challenged analysts since the observation that use of traditional modal coordinates in such problems leads to the prediction of instability involving infinite deformation when rotation rates exceed the first natural frequency. A method using a system of nonlinearly coupled deformation modes to analyze rotating general, linear (unjointed) structures that addresses the problem of erroneously predicting infinite deformations has been presented in a preceding paper (Segalman and Dohrmann, 1995). This technique is employed to address several types of problems ranging from simple beams to an inflated membrane structure. Some of the details of exploiting existing finite element codes to evaluate the relevant matrices are also developed.
Databáze:	OpenAIRE
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