Journal ArticleDOI
The dissipation coefficient and its application to flexible rotor-bearing system design
TLDR
In this paper, the authors provide information on the design of journal bearings for use in high speed rotating machinery to minimize the energy dissipation due to the out-of-balance of the flexible rotor.About:
This article is published in Wear.The article was published on 1986-02-15. It has received 4 citations till now. The article focuses on the topics: Rotor (electric) & Bearing (mechanical).read more
Citations
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Journal ArticleDOI
Detection and monitoring of crack in a coast-down rotor supported on fluid film bearings
TL;DR: In this paper, the authors used the continuous wavelet transform (CWT) to extract sub-harmonics from the time domain signals of a rotor system coasting down through its critical speed.
Journal ArticleDOI
Severity Estimation of Cracked Shaft Vibrations within Fluid Film Bearings
B.S. Prabhu,A. S. Sekhar +1 more
TL;DR: In this article, a cracked Jeffcott rotor supported on fluid film bearings was analyzed and the authors derived the equations of motion with four degrees of freedom, taking into consideration the flexibility, damping and cross coupling of the fluid film bearing.
Journal ArticleDOI
Conditions for backward whirling motion of a flexible rotor supported on hydrodynamic journal bearings
TL;DR: In this paper, the necessary conditions for backward motion of a Jeffcott rotor supported by identical hydrodynamic journal bearings are investigated, and it is shown that backward motion occurs if and only if the load parameter is greater than a limiting value corresponding to the flexibility parameter.
Journal ArticleDOI
Detection and monitoring of cracks in rotors through Q factors
TL;DR: In this article, the effects of fluid film bearings on cracks in a cracked Jeffcott rotor have been analyzed, in addition to the Q factors and dissipation coefficients of the rotor.
References
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Journal ArticleDOI
Practical determination and use of bearing dynamic coefficients
TL;DR: In this article, the stiffness and damping coefficients for ideal operating conditions were determined and their reliability ascertained by vibration measurements on high-speed rotors for four practically important journal bearing designs and the significant effects on the static load capacity of the bearing and the stability behavior of the rotor-bearing systems are illustrated and discussed.
Journal ArticleDOI
Optimum Journal Bearing Parameters for Minimum Rotor Unbalance Response in Synchronous Whirl
TL;DR: In this paper, a parametric study of the unbalance response is carried out to show the influence of bearing parameters on the response and to demonstrate the merits of applying optimization techniques in bearing design.
Journal ArticleDOI
The effect of inlet film boundary conditions on the steady state characteristics of hydrodynamic journal bearings
C. Rajalingham,B.S. Prabhu +1 more
TL;DR: In this article, a correction in the Reynolds boundary conditions is proposed and a new solution for the pressure distribution is obtained, which shows a sudden change in the pressure gradient at the position of maximum film thickness, which is possible only if the lubricant is added precisely at this position.
Journal ArticleDOI
The effect of modified inlet boundary conditions on the stiffness and damping characteristics of finite hydrodynamic journal bearings
TL;DR: In this paper, the stiffness and damping characteristics of a finite hydrodynamic journal bearing using the new boundary conditions are compared with the wellknown characteristics incorporating the Reynolds boundary conditions.