contributor author | A. L. Gu | |
contributor author | J. A. Walowit | |
contributor author | D. F. Wilcock | |
date accessioned | 2017-05-09T01:37:07Z | |
date available | 2017-05-09T01:37:07Z | |
date copyright | October, 1973 | |
date issued | 1973 | |
identifier issn | 0742-4787 | |
identifier other | JOTRE9-28573#490_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/164182 | |
description abstract | The gyro system under consideration consists of a hollow porous sphere supported in a hydrostatic gas-lubricated spherical bearing. High pressure gas leaking into the sphere through the pores from the bearing film pressurizes the inside of the sphere and is exhausted from a series of Hero jets located around the equator to counter the viscous drag from the bearing and maintain a constant speed. Analysis has been presented for predicting equilibrium speed, flow rates, and stiffness for axisymmetric condition as a function of various dimensionless system parameters representing porosity, drive nozzles, inlet feeding holes, supply pressure, etc. Effects of the various system parameters on the performance of the gyro are illustrated. A preliminary feasibility study has been made for a wide angle and a narrow angle bearing. It is found that the small angle bearing is less subject to lock-up without significant loss of stiffness, but suffers from a lower speed and a less efficient gas utilization. A particular design will represent a compromise between stiffness and speed. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | A Hero-Jet Driven Porous Spherical Hydrostatic Gas Bearing Gyro | |
type | Journal Paper | |
journal volume | 95 | |
journal issue | 4 | |
journal title | Journal of Tribology | |
identifier doi | 10.1115/1.3451863 | |
journal fristpage | 490 | |
journal lastpage | 498 | |
identifier eissn | 1528-8897 | |
keywords | Hydrostatics | |
keywords | Gas bearings | |
keywords | Bearings | |
keywords | Stiffness | |
keywords | Leakage | |
keywords | Porosity | |
keywords | Design | |
keywords | Nozzles | |
keywords | Pressure | |
keywords | Flow (Dynamics) | |
keywords | Locks (Waterways) | |
keywords | Drag (Fluid dynamics) | |
keywords | Equilibrium (Physics) | |
keywords | High pressure (Physics) AND Jets | |
tree | Journal of Tribology:;1973:;volume( 095 ):;issue: 004 | |
contenttype | Fulltext | |