contributor author | C. Hunter Cloud | |
contributor author | Eric H. Maslen | |
contributor author | Lloyd E. Barrett | |
date accessioned | 2017-05-09T00:32:48Z | |
date available | 2017-05-09T00:32:48Z | |
date copyright | January, 2009 | |
date issued | 2009 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-27051#012504_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/140543 | |
description abstract | Rotor stability is most commonly estimated using methods derived from a simple single degree of freedom system. When the modes of more complex systems, such as rotors, are closely spaced, we demonstrate that such methods can yield very poor estimates of the modal stability (damping ratio). Multiple output backward autoregression (MOBAR) is proposed as an alternative approach and is demonstrated to yield reasonably accurate estimates of modal damping even when modes are closely spaced. The performance of the MOBAR approach is then examined on an experimental rotor in tilt-pad bearings, demonstrating good performance in a realistic measurement setting. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Damping Ratio Estimation Techniques for Rotordynamic Stability Measurements | |
type | Journal Paper | |
journal volume | 131 | |
journal issue | 1 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.2967484 | |
journal fristpage | 12504 | |
identifier eissn | 0742-4795 | |
keywords | Stability | |
keywords | Measurement | |
keywords | Damping | |
keywords | Rotors AND Bearings | |
tree | Journal of Engineering for Gas Turbines and Power:;2009:;volume( 131 ):;issue: 001 | |
contenttype | Fulltext | |