Download or read book Rotor bearing Dynamics Design Technology Part Iv Ball Bearing Design Data written by P. Lewis and published by . This book was released on 1965 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Rotor bearing Dynamics Technology Design Guide written by A. B. Jones and published by . This book was released on 1978 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an update of the original Part IV of the Rotor-bearing Dynamics Design Technology Series, AFAPL-TR-65-45 (Parts I through X). A Computer program is given for preparation of ball bearing stiffness data input for rotordynamic response programs. The complete stiffness matrix is calculated including centrifugal effects. Considerations such as elastohydrodynamic and cage effects are not included since they have little influence on the calculation of ball bearing stiffness. The resulting program is reasonably small and easy to use. Lastly, the stiffness data included in the original Part IV have been updated and are included in appendices.
Download or read book Rotor bearing Dynamics Technology Design Guide written by A. B. Jones and published by . This book was released on 1978 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an update of the original Part IV of the Rotor-bearing Dynamics Design Technology Series, AFAPL-TR-65-45 (Parts I through X). A Computer program is given for preparation of ball bearing stiffness data input for rotordynamic response programs. The complete stiffness matrix is calculated including centrifugal effects. Considerations such as elastohydrodynamic and cage effects are not included since they have little influence on the calculation of ball bearing stiffness. The resulting program is reasonably small and easy to use. Lastly, the stiffness data included in the original Part IV have been updated and are included in appendices.
Download or read book Rotor bearing Dynamics Technology Design Guide written by A. B. Jones and published by . This book was released on 1979 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an update of the original Part IV of the Rotor-Bearing Dynamics Design Technology Series, AFAPL-TR-65-45 (Parts I through X). A computer program is given for preparation of cylindrical roller bearing stiffness data input for rotordynamic response programs. The complete stiffness matrix is calculated including centrifugal effects. Considerations such as elastohydrodynamic and cage effects are not included since they have little influence on the calculation of cylindrical roller bearing stiffness. The resulting the program is reasonably small and easy to use.
Download or read book Rotor Bearing Dynamics Design Technology written by and published by . This book was released on 1965 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotor Bearing Dyanmics Technology Design Guide written by A. B. Jones and published by . This book was released on 1979 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an update of the original Part IV of the Rotor-Bearing Dynamics Design Technology Series, AFAPL-TR-65-45 (Parts I through X). A computer program is given for preparation of tapered roller bearing stiffness data input for rotordynamic response programs. The complete stiffness matrix is calculated including centrifugal effects. Considerations such as elastohydrodynamic and cage effects are not included since they have little influence on the calculation of tapered roller bearing stiffness. The resulting program is reasonably small and easy to use.
Download or read book Rotor bearing Dynamics Technology Design Guide Ball bearings written by and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotor bearing Dynamics Technology Design Guide Cylindrical roller bearings written by and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotor bearing Dynamics Design Technology written by J. Lund and published by . This book was released on 1968 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume treats three special bearing types selected for study because of their favorable stability characteristics and, hence, their potential for use in high speed rotating machinery applications. The three bearing types are: (a) The Three Lobe Journal Bearing; (b) The Floating Sleeve Bearing with an Incompressible Lubricant; (c) The Floating Sleeve Bearing with a Compressible Lubricant. In the floating sleeve bearings, the ring is prevented from rotating but is otherwise free to move. The ring is floated by pressurizing the outer film of the bearing. In the case of a compressible lubricant, the inner film is pressurized as well. The volume gives extensive design data in form of charts and tables from which the bearing dimensions can be obtained for a given application. Data are given for bearing flow, friction power loss and the speed at which hydrodynamic instability sets in. In addition, two computer programs accompany the volume, and instructions and listings of the programs are included. The programs may be used to obtain data for cases not covered by the presented design data.
Download or read book Rotor Bearing Dynamics Technology Design Guide Part 8 A Computerized Data Retrieval System for Fluid Film Bearings written by and published by . This book was released on 1980 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Rotor bearing Dynamics Design Technology Part Iii Design Handbook for Fluid Film Type Bearings written by Jorgen W. Lund and published by . This book was released on 1965 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Rotor bearing Dynamics Design Technology Part Vii the Three Lobe Bearing and Floating Ring Bearing written by J. W. Lund and published by . This book was released on 1968 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume treats three special bearing types selected for study because of their favorable stability characteristics and, hence, their potential for use in high speed rotating machinery applications. The three bearing types are: (a) The Three Lobe Journal Bearing; (b) The Floating Sleeve Bearing with an Incompressible Lubricant; (c) The Floating Sleeve Bearing with a Compressible Lubricant. In the floating sleeve bearings, the ring is prevented from rotating but is otherwise free to move. The ring is floated by pressurizing the outer film of the bearing. In the case of a compressible lubricant, the inner film is pressurized as well. The volume gives extensive design data in form of charts and tables from which the bearing dimensions can be obtained for a given application. Data are given for bearing flow, friction power loss and the speed at which hydrodynamic instability sets in. In addition, two computer programs accompany the volume, and instructions and listings of the programs are included. The programs may be used to obtain data for cases not covered by the presented design data.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotor bearing Dynamics Technology Design Guide Computerized data retrieval system for fluid film bearings written by and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotor bearing Dynamics Design Technology written by R. Cundiff and published by . This book was released on 1970 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a study conducted to determine the effects thrust bearings have on rotor-bearing stability. A computer program was written in order to study these effects and permits the inclusion of the thrust bearing characteristics into the rotor system. A manual is provided for the program, containing a listing of the program and detailed instructions for preparation of input data. A technique is also presented which permits the user a convenient method of evaluating the stability of a rotor system with and without the thrust bearing data. Extensive design data are presented for gas-lubricated, externally pressurized thrust bearings.
Download or read book Rotor bearing Dynamics Technology Design Guide written by Coda H. T. Pan and published by . This book was released on 1980 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Rotor bearing Dynamics Design Technology Part 5 Computer Program Manual for Rotor Response and Stability written by Jorgen W. Lund and published by . This book was released on 1965 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
