A Forced Response Analysis and Application of Impact Dampers to Rotordynamic Vibration Suppression in a Cryogenic EnvironmentSource: Journal of Vibration and Acoustics:;1995:;volume( 117 ):;issue: 3A::page 300Author:J. J. Moore
,
T. A. Nale
,
G. V. Brown
,
A. F. Kascak
,
S. A. Klusman
,
A. B. Palazzolo
,
R. Gadangi
DOI: 10.1115/1.2874452Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A high speed damper test rig has been assembled at Texas A&M University to develop rotordynamic dampers for rocket engine turbopumps that operate at cryogenic temperatures, such as those used in the space shuttle main engines (SSMEs). Damping is difficult to obtain in this class of turbomachinery due to the low temperature and viscosity of the operating fluid. An impact damper has been designed and tested as a means to obtain effective damping in a rotorbearing system. The performance and behavior of the impact damper is verified experimentally in a cryogenic test rig at Texas A&M. Analytical investigations indicate a strong amplitude dependence on the performance of the impact damper. An optimum operating amplitude exists and is determined both analytically and experimentally. In addition, the damper performance is characterized by an equivalent viscous damping coefficient. The test results prove the impact damper to be a viable means to suppress vibration in a cryogenic rotorbearing system.
keyword(s): Dampers , Vibration suppression , Damping , Low temperature , Vibration , Temperature , Fluids , Viscosity , Engines , Rocket engines AND Turbomachinery ,
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contributor author | J. J. Moore | |
contributor author | T. A. Nale | |
contributor author | G. V. Brown | |
contributor author | A. F. Kascak | |
contributor author | S. A. Klusman | |
contributor author | A. B. Palazzolo | |
contributor author | R. Gadangi | |
date accessioned | 2017-05-08T23:48:45Z | |
date available | 2017-05-08T23:48:45Z | |
date copyright | July, 1995 | |
date issued | 1995 | |
identifier issn | 1048-9002 | |
identifier other | JVACEK-28821#300_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/116220 | |
description abstract | A high speed damper test rig has been assembled at Texas A&M University to develop rotordynamic dampers for rocket engine turbopumps that operate at cryogenic temperatures, such as those used in the space shuttle main engines (SSMEs). Damping is difficult to obtain in this class of turbomachinery due to the low temperature and viscosity of the operating fluid. An impact damper has been designed and tested as a means to obtain effective damping in a rotorbearing system. The performance and behavior of the impact damper is verified experimentally in a cryogenic test rig at Texas A&M. Analytical investigations indicate a strong amplitude dependence on the performance of the impact damper. An optimum operating amplitude exists and is determined both analytically and experimentally. In addition, the damper performance is characterized by an equivalent viscous damping coefficient. The test results prove the impact damper to be a viable means to suppress vibration in a cryogenic rotorbearing system. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | A Forced Response Analysis and Application of Impact Dampers to Rotordynamic Vibration Suppression in a Cryogenic Environment | |
type | Journal Paper | |
journal volume | 117 | |
journal issue | 3A | |
journal title | Journal of Vibration and Acoustics | |
identifier doi | 10.1115/1.2874452 | |
journal fristpage | 300 | |
journal lastpage | 310 | |
identifier eissn | 1528-8927 | |
keywords | Dampers | |
keywords | Vibration suppression | |
keywords | Damping | |
keywords | Low temperature | |
keywords | Vibration | |
keywords | Temperature | |
keywords | Fluids | |
keywords | Viscosity | |
keywords | Engines | |
keywords | Rocket engines AND Turbomachinery | |
tree | Journal of Vibration and Acoustics:;1995:;volume( 117 ):;issue: 3A | |
contenttype | Fulltext |