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Critical Speeds of Geared Rotors by Including Mesh Stiffness and Using a Continuous System Model
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ASME_Advances in Design Automation_Critical Speeds of Geared Rotors by Including Mesh Stiffness and Using a Continous System Model_199.pdf
Date
1990
Author
Şener, O. Sedat
Özgüven, Hasan Nevzat
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Dynamic analysis of high speed gearing for the computation of critical speeds and dynamic factors is a must in a proper design, while some other dynamic characteristics of the system such as dynamic transmission error are to be determined for more critical designs. Numerous different models have been suggested for the dynamic analysis of geared systems. These models differ both in the effects included and in the basic assumptions made. A continuous system model is used in this analysis in order to determine the torsional natural frequencies of a gear shaft system composed of two gears, two shafts and two inertias representing the drive and the load. Gear mesh is modelled as a spring connected between two gears. The natural frequencies of the same system are also calculated by using a four degree of freedom classical discrete model in which shaft masses are ignored. The percentage differences in the natural frequencies calculated with the discrete and continuous system models are determined for several values of some nondimensional system parameters. The results are presented in graphical form in terms of the nondimensional parameters defined. Some conclusions which may be important for designers are drawn.
Subject Keywords
Computation
,
Degrees of freedom
,
Design
,
Dynamic analysis
,
Errors
,
Gears
,
Rotors
,
Springs
,
Stiffness
,
Stress
URI
https://hdl.handle.net/11511/105154
DOI
https://doi.org/https://doi.org/10.1115/DETC1990-0098
Conference Name
Advances in Design Automation, ASME, (September 16-19, 1990)
Collections
Department of Mechanical Engineering, Conference / Seminar
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
O. S. Şener and H. N. Özgüven, “Critical Speeds of Geared Rotors by Including Mesh Stiffness and Using a Continuous System Model,” Chicago, 1990, vol. 23, p. 429, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/105154.