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| Author | : |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1978 |
| Genre | : Ball-bearings |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 250 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
This report describes a computerized data storage retrieval system for the static and dynamic characteristics of fluid film bearings. The procedure combines asymptotic power law extrapolation outside the stored data range with smooth interpolation within the data table. Thirty-one data tables have been prepared and installed in the system. The procedure allows addition of new data tables in the future. The retrieval software allows the user to list the data content in either the dimensional or the dimensionless form or to generate data lines in the sequence and format directly usable as input to the rotordynamics software described. Inertia, compliance and damping effects of the pedestal can be included in the retrieval dynamic characteristics of each bearing.
| Author | : Coda H. T. Pan |
| Publisher | : |
| Total Pages | : 239 |
| Release | : 1980 |
| Genre | : Bearings (Machinery) |
| ISBN | : |
This report describes a computerized data storage retrieval system for the static and dynamic characteristics of fluid film bearings. The procedure combines asymptotic power law extrapolation outside the stored data range with smooth interpolation within the data table. Thirty-one data tables have been prepared and installed in the system. The procedure allows addition of new data tables in the future. The retrieval software allows the user to list the data content in either the dimensional or the dimensionless form or to generate data lines in the sequence and format directly usable as input to the rotordynamics software described. Inertia, compliance and damping effects of the pedestal can be included in the retrieval dynamic characteristics of each bearing.
| Author | : Jorgen W. Lund |
| Publisher | : |
| Total Pages | : 315 |
| Release | : 1965 |
| Genre | : |
| ISBN | : |
This design handbook presents data and methods for use in analyzing the dynamical performance of a rotor supported in fluid film type bearings. The data are given in form of design charts covering: (1) The dynamic bearing coefficients; (2) The onset of hydrodynamic instability; and (3) The critical speeds and the unbalance response of a simple rotor-bearing system. The design charts are in dimensionless form and cover a wide range of bearing geometries and operating conditions. Several different types of fluid film bearings are considered together with various forms of lubrication.
| Author | : |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1978 |
| Genre | : Ball-bearings |
| ISBN | : |
| Author | : Jorgen W. Lund |
| Publisher | : |
| Total Pages | : 129 |
| Release | : 1965 |
| Genre | : |
| ISBN | : |
This report is a manual for using the two computer programs: (1) Unbalance Response of a Rotor in Fluid Film Bearings; (2) The Stability of a Rotor in Fluid Film Bearings. The report gives the analysis on which the programs are based, and the instructions for preparing the computer input and for interpreting the computer output.
| Author | : Paul E. Allaire |
| Publisher | : |
| Total Pages | : 82 |
| Release | : 1980 |
| Genre | : Bearings (Machinery) |
| ISBN | : |
This report gives the equilibrium position, bearing coefficients, friction torque, and oil flow for plain journal, multilobe, and tilting pad journal bearings. For multilobe bearings, various combinations of preload, number of pads, and load direction are evaluated. Tilting pad bearings are analyzed for various combinations of length to diameter ratio, preload, number of pads, and load direction.
| Author | : J. K. Wang |
| Publisher | : John Wiley & Sons |
| Total Pages | : 216 |
| Release | : 2016-01-07 |
| Genre | : Science |
| ISBN | : 1118536347 |
Thermohydrodynamic Instability in Fluid-Film Bearings aims to establish instability criteria for a rotor-bearing system associated with fluid-film journal bearings. • It focuses on how the influencing factors such as rotor flexibility, manufacturing imperfections such as residual shaft unbalance, and service-related imperfections such as uneven wear affect the stability of a rotor-bearing system • It shows how the specific operating conditions such as oil inlet temperature, inlet pressure, and inlet position of a rotor-bearing system directly influence the system stability • General design guidelines have been summarized to guide the engineering system design and the correction of failure and/or malfunction
| Author | : P. Lewis |
| Publisher | : |
| Total Pages | : 87 |
| Release | : 1965 |
| Genre | : |
| ISBN | : |
This Part IV of the Final Report presents design data for the stiffness characteristics of ball bearings for use in analyzing the dynamical performance of a rotor. The dynamic characteristics of fluid film bearings are given in Part III which also gives the methods for performing the analysis of the rotor-bearing system. Design data are presented for the extra-light and light group of deep-grooved and angular contact bearings undergoing either a pure radial load, pure axial load, or combined radial load with axial preload. The data are given in graphical form and cover both radial stiffness and load- carrying capacity. A nominal damping value for ball bearings, obtained from experimentation, is suggested. Some of the general guide rules for the selection of ball bearings are given. These are concerned with fatigue life, limiting speeds, design, and lubrication. Safe load levels are indicated.
| Author | : Paul E. Allaire |
| Publisher | : |
| Total Pages | : 95 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
This report gives the equilibrium position, bearing coefficients, friction torque, and oil flow for plain journal, multilobe, and tilting pad journal bearings. For multilobe bearings, various combinations of preload, number of pads, and load direction are evaluated. Tilting pad bearings are analyzed for various combinations of length to diameter ratio, preload, number of pads, and load direction. (Author).
