| 38544 |
Creator |
85b0bbe9bb984607f521e3e9899c0101 |
| 38544 |
Date |
2013-09-17 |
| 38544 |
Is Part Of |
repository |
| 38544 |
abstract |
In simulating a proposed machine tool grinding wheel design, a bearing system comprised
a stationary spindle or shaft with fluid film bearings supporting a belt driven rotor.
Two hydrodynamic bearings acted in parallel, and built into the shaft were the means
to effect continuous pro-active adjustments to their performance characteristics during
operation, irrespective of load, speed and other running conditions. The design is
outlined, as is a specially constructed test rig for evaluating it. A method for
determining the combined displacement coefficients is given which used an incremental
load technique with dedicated axis system selection. Observations are given on the
bearings’ performance characteristics. The effects of the adjustments on rotor eccentricity
are shown, along with the ability to maintain a given rotor eccentricity, including
zero, irrespective of load and changes in load. Results of measured rotor displacements
and displacement coefficients are also given showing that the bearing exhibited high
stiffness at zero load and eccentricity, and that stiffness could be changed by adjustment
if required, thereby “tuning” the system rotordynamics behaviour. Comparisons are
made with results of others’ work on the measured displacement coefficients of a conventional
type of tilting pad bearing. An approach to uncertainty estimation of measured data
is included. |
| 38544 |
authorList |
authors |
| 38544 |
presentedAt |
ext-0a880710249578568a051e8417dcf4f7 |
| 38544 |
status |
peerReviewed |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190085 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190106 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190107 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190108 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190109 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/190110 |
| 38544 |
uri |
http://data.open.ac.uk/oro/document/191243 |
| 38544 |
type |
AcademicArticle |
| 38544 |
type |
Article |
| 38544 |
label |
Martin, J. K. (2013). Measured displacement coefficients of an adjustable hydrodynamic
journal rotor bearing. In: 12th EDF/Pprime Workshop "Solutions for performance improvements
and friction reduction of journal and thrust bearings", 17-18 Sep 2013, Poitiers,
France. |
| 38544 |
label |
Martin, J. K. (2013). Measured displacement coefficients of an adjustable hydrodynamic
journal rotor bearing. In: 12th EDF/Pprime Workshop "Solutions for performance improvements
and friction reduction of journal and thrust bearings", 17-18 Sep 2013, Poitiers,
France. |
| 38544 |
Title |
Measured displacement coefficients of an adjustable hydrodynamic journal rotor bearing |
| 38544 |
in dataset |
oro |